baber/WOPTO huggingface dataset:
Patent GB-1077357-A (GB)
Title: Superconductive amplifier
IPC: H03F19/00
Filed: 1964-10-12
Abstract: 1,077,357. Superconductive amplifiers. GENERAL ELECTRIC CO. Oct. 12, 1964 [Oct. 17, 1963], No. 41601/64. Heading H3B. In a superconductive amplifier comprising a plurality of cascaded cryotron stages, each stage including two cryotrons, an inductance is coupled between the output of the amplifier and each of the cryotrons of a stage of the amplifier respectively so as to provide negative feedback. As shown in Fig. 1 a plurality of stages of cryotrons are connected so that the gate of a cryotron is connected to the control grid of a succeeding cryotron. The cryotrons are biased by current sources 21-30 so that the gates are between a condition of superconductivity and a condition of normal resistance. For each stage one of the current sources 40-45 supplies gate current I G  to each gate of the stage which returns to ground after flowing through the control grids of the following stage. An input signal I in  from generator 37 applied to terminals 31, 32 adds to the bias I bias in grid 11 resulting in gate 1 becoming more resistive so that the current from generator 40 does not divide equally but more flows through gate 2 and control grid 14 of the following stage. Gate 4 is now more resistive than gate 3, causing a larger proportion of current from 42 to flow through gate 3 and through succeeding grid 15. In this manner the remaining stages are driven in succession and due to the steep resistance VS grid current characteristic of each cryotron and because the control grids are narrow with respect to the cryotron gates an amplified output voltage appears across terminals 35, 36. In order to counteract the effect of low frequency noise voltages due to temperature fluctuations negative feedback at the frequency of the noise voltages is provided between the output of the amplifier and the input by means of inductances 38, 39. The width of the output cryotron grids 19, 20 are increased relative to the preceding cryotrons and in order to obtain a high output voltage the number of grid crossings is also increased. In the arrangement of Fig. 2 (not shown) current sources 40 to 45 and 21 to 30 are replaced by a single source which is connected between the common point of the control grids 11, 12 and the common point of the gates 1, 2. The arrangement of Fig. 3 (not shown) uses separate cryotrons for supplying the output voltage and for providing the feedback voltage. In this ease inductances (38), (39) are connected to the gates (50), (51) of two additional cryotrons positioned between cryotrons 7, 8 and 9, 10 of Fig. 1. Fig. 4 (not shown) illustrates two multistage amplifier sections including two feedback loops.
Patent GB-1403045-A (GB)
Title: Device for adjusting the spacing of objects as they are transferred to a conveyor
IPC: B65G47/30
Filed: 1972-09-07
Abstract: 1403045 Spacing articles on belt conveyers T HAYASHI 7 Sept 1972 [9 Sept 1971] 41647/72 Heading B8A Articles I on an upstream conveyer 2, are transferred to a downstream conveyer 3 by an upwardly and downwardly oscillating roller 5, so that they are given a pre-determined regular spacing on the conveyer 3. A fixed stop 4 engages the article when the roller 5 is in its lower position. In the upper position of the roller 5, the feed of the next article 1 upstream is prevented by a stop 6 which is carried by the oscillating frame of the roller 5. The latter is moved at the desired frequency by the action of a cam (14) (Fig. 5, not shown). In a modification, in which box-shaped articles are conveyed, the stops 4 and 6 are dispensed with.
Patent GB-1518136-A (GB)
Title: Power assisted steering system
IPC: B62D6/02
Filed: 1975-10-13
Abstract: 1518136 Power-assisted steering systems ZAHNRADFABRIK FRIEDRICHSHAFEN AG 13 Oct 1975 [23 Oct 1974] 41804/75 Heading B7H The power-assisted steering system, Fig. 1, of a motor vehicle comprises a control valve 1 in communication with a pump 2 which is driven by the vehicle engine and which has an output flow characteristic line (as shown in Fig. 4) which, beginning just above the idling speed of the engine, falls with increasing engine speed. The control valve 1 is operable to control fluid flow to a servo motor 3 and comprises a valve piston 5 axially movable by actuating means including a pin 28 connected to a torsion bar 27. The steering system of Fig. 1 is intended to provide increase servo assistance at low engine speeds, for example during parking manoeuvres. In a modification of the steering. system of Fig. 1, the control valve has a valve member constructed as a rotary valve sleeve (105), Fig. 6 (not shown). a rotary sleeve
Patent GB-1124074-A (GB)
Title: Method of producing electrodes for electro-erosive metal working electrodes thus produced, and process using such electrodes
IPC: B23H1/04
Filed: 1965-10-01
Abstract: <PICT:1124074/C6-C7/1> An electrode for electro erosine metal working is formed by electro forming, or electroless plating an impression in a carrier metal 2 with one or more layers 31, 32, 33 of copper, nickel or other metal and removing the carrier metal. The carrier metal may be a fusible alloy or a kneadable amalgam, suitable fusible alloys are: Woods Metal, 50% Bi, 25% Pb, 12.5% Sn, 12.5% Cd, or Rose's Metal 50% Bi, 25% Pb, 25% Sn, or an alloy containing 35% Bi, 36% Pb, 19% Sn, 10% Cd, or an alloy containing 87% Pb, 13% Sb, or an alloy containing 55% Bi, 40% Pb, 5% Sn. Suitable amalgams are a copper amalgam containing 20%-40% copper, or a silver amalgam containing 50% to 70% Ag, 20% to 50% Sn, 0 to 10% Cu, 0 to 2% Zn, 0 to 10% Au.  The amalgam is produced by mixing chips of a suitable alloy with mercury until a plastic mass is obtained.
Patent GB-1068214-A (GB)
Title: Improvements in and relating to determining the combined nitrogen and carbon monoxide content of the gases given off by a series of metal samples,and if desired therefrom the nitrogen and oxygen content of the samples
IPC: G01N25/18
Filed: 1964-10-15
Abstract: 1,068,214. Gas content of metal samples. BALZERS PATENT-UND LIZENZ-ASTALT. Oct. 15, 1964, No. 42065/64. Heading B1X. The combined nitrogen and carbon monoxide content of the gases given off by a series of metal samples is determined by a method comprising fusing the sample 3 in carbon or graphite crucible 2 in vacuum extraction furnace 1, supplying the gases evolved to thermal conductivity measuring apparatus 5 by means of pump 4, adding hydrogen from reservoir 9 to the gases until a predetermined total pressure is reached, the supply of hydrogen being automatically controlled in response to the pressure measured by manometer 6, and measuring the thermal conductivity of the gas mixture. The apparatus may include carbon monoxide analyser 10, for example an infra red absorption instrument, whereby the amount of oxygen and hence the amount of nitrogen evolved by the sample may be calculated.
Patent GB-1281603-A (GB)
Title: Photographic exposure control methods and apparatus
Inventor: OST CLARENCE SAMUEL
IPC: G03B27/80
Filed: 1969-08-26
Abstract: 1281603 Photographic exposure control C S OST 26 Aug 1969 [4 Dec 1968] 42397/69 Headings G2A and G2C. An original 17 is placed on an easel 13, covered with a half-tone screen (not shown), illuminated by lamps 45 and photographed on a film 49; the exposure value being selected (by rears of a densitometer 70 and bridge 1-6) in accordance with the density ranges of the orignal and screen, and the light flux of lamps 45 being measured so as to terminate exposure when the selected value has been reached. If the screen range is the smaller, the film 49 is also exposed to flashlamps 46. If the screen range is the larger, the film 49 is also exposed to original 17 unscreened. In operation, density measurements and test exposures are made to set a resistor 3 in the bridge circuit to a value corresponding to the screen range and then, with a switch 16 in its left position and densitometer 70 measuring a minimum density portion of the original, a resistance 2 is adjusted to balance the bridge. With switch 16 right and densitometer 70 measuring a maximum density portion, a resistance 4 is adjusted for balance; a balance with resistance 4 only being obtainable if screen range is the smaller. Resistances 2, 4 are coupled to resistances 7, 8 which control the potentials to which capacitors 29, 30 are charged. On closing switches 43, 44 lamps 45, 46 are energized and the capacitors discharge through photo-cells 47, 48 which measure the light flux of the lamp. On full discharge the lamps are switched off by circuits 31-36. If screen range is the larger no balance is obtainable with resistance 4 which is set to zero and resistance 2 is readjusted. A screened exposure is made with lamps 45 and then an unscreened exposure is made. (For Figures see next page)
Patent GB-1048249-A (GB)
Title: Support means, for example for a pipe
Inventor: ORMEROD ALAN
IPC: F16L3/16
Filed: 1963-10-29
Abstract: 1,048,249. Pipe supports. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov. 26, 1964 [Oct.29, 1963], No. 42580/63. Heading F2P. [Also in Division E2] A support means for mounting a movable part, e.g. a pipe 10, on a fixed part 11 comprises a plurality of angularly spaced support devices each having an attachment member secured to one part, a connecting member 15 pivotally mounted, by means of a pin 14, on the attachment member, a bearing housing 17 secured on the other part, and a bearing 16 engaging in the housing 17 to permit relative movement in more than one plane, the bearing also being engaged by a portion of the connecting member and being capable of relative movement in a plane normal to the axis about which the connecting member is pivotally mounted on the attachment member.
Patent GB-969984-A (GB)
Title: Improvements in moderator stacks for nuclear reactors
Inventor: FORESTIER JEAN
IPC: G21C5/16
Filed: 1962-11-12
Abstract: 969,984. Moderators. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 12,1962 [Nov. 10,1961], No. 42648/62. Heading G6C. A nuclear reactor moderator comprises a series of adjacent columns each formed by a plurality of bars stocked end to end, some of the columns having longitudinal cylindrical channels therein for receiving fuel elements, and is characterized in that at least some of the fuel channels include grooves extending along the channels, these grooves sensing to increase the coolant flow cross-section, whilst still retaining sufficient of the original channel wall to locate the fuel element radially. Fig. 2 shows a fuel element 14<SP>1</SP>, having longitudinal fins 16<SP>1</SP>, located by its fins in a channel 12<SP>1</SP>; the channel wall includes a number of helical grooves 18. The grooves, whose depth and/or width may vary along their length, will all be of the same pitch, and may either be of the same helix, or arranged in adjacent pairs of opposite helix. Where the fins are circular or helical, straight grooves may be formed in the channel wall. The grooves may either be machined in individual bars, or in assembled columns of bars. The bars may be of graphite or berylium.
Patent GB-1057472-A (GB)
Title: Novel benzdiaz[1,4]epine derivatives and a process for the preparation thereof
IPC: C07D498/04
Filed: 1964-03-25
Abstract: Compounds of the general formula <FORM:1057472/C2/1> (wherein the lower alkanoyl group contains 1-7 carbon atoms and the broken line denotes an optional substituent) are prepared by oxidizing a compound of the formula <FORM:1057472/C2/2> with hydrogen peroxide and/or a peracid.  The preparation of 1-formyl-7-chloro-5-phenyl-2,3 - dihydro - 1H - benzdiaz[1 4] - epine is described.
Patent GB-1275785-A (GB)
Title: Method and apparatus for separating foreign matter from gases
Inventor: JAEGER WALTER
IPC: B01D47/10
Filed: 1969-08-27
Abstract: 1275785 Gas scrubber OVITRON CORP 27 Aug 1969 42718/69 Heading B1R In a gas scrubber gas to be scrubbed enters at 10 is sprayed with liquid from an upwardly directed nozzle 28 and then is passed into a chamber 11 and through a plurality of venturi-shaped annular slots defined between vertically spaced ring members 20. Scrubbed gas is withdrawn at 20 and used scrubbing liquid at 26.
Patent GB-1189634-A (GB)
Title: Flame Spray Gun having a Powder Feed Device.
IPC: B05B7/14
Filed: 1967-09-21
Abstract: 1,189,634. Pneumatic conveyers. METCO Inc. 21 Sept., 1967 [29 Dec., 1966], No. 42922/67. Heading B8A. [Also in Division B2] A flame spray gun includes a powder feed device in which powder is introduced into a stream of carrier gas flowing at a substantially constant rate through a conduit, and a pressuresensitive gauge responsive to the change of pressure along the conduit past the point of powder introduction. The powder may be introduced into the carrier gas stream in a mixing chamber 39, the powder being fed to a feed chamber 33 from hoppers 1, 20 and from the feed chamber to the mixing chamber through an intermediate chamber 35 by a rotatable cylinder 36 formed with peripheral recesses 37. The angle to the horizontal of a line joining the highest point 38 of intersection of the feed chamber 33 and the intermediate chamber 35, and the lowest point 40 of intersection of the intermediate chamber 35 and the mixing chamber 39 is less than the angle of repose of the powder. The carrier gas enters the mixing chamber at 42, entrains the powder, and carries it out through a tapering passage 50 to a flame spray gun (61), Fig. 7 (not shown). The pressure throughout the apparatus is equalized by gas passing through a line 45, a tube 48, passages 18, 17, a hollow rod 4 and apertures 19. A pressure-sensitive gauge 52 may be connected into the carrier gas inlet passage 41, or a differential gauge such as a manometer may be connected to the carrier gas conduit downstream of the passage 50. The pressure drop in a conduit may automatically control the rate of rotation of the cylinder 36 by means of a diaphragm (57, Fig. 7) acted on at each side by the pressure at a different point in the carrier gas flow path, and having fixed thereto a contact (62) of a rheostat (63) connected in the circuit of an electric motor 53 driving the cylinder 36. In a modification (Fig. 8, not shown), the cylinder 36 is dispensed with, a nozzle (66) being located beneath the surface of a pile of powder within the intermediate chamber (35) and gas issuing from the nozzle blows powder into the mixing chamber (39) at a rate of flow regulated by the back pressure in the conduit (60) leading to the spray gun. The hoppers 1, 20 supplying powder to the feed chamber 33 include valves 26, 13, the valve 13 closing automatically when an air tight cap 7 is removed for replenishing the supply of powder in the hopper 1.
Patent GB-1359263-A (GB)
Title: Oestratrienes
IPC: C07J31/00
Filed: 1972-09-18
Abstract: 1359263 16α-Substituted estratrienes JENAPHARM VEB 18 Sept 1972 43087/72 Heading C2U The invention comprises compounds of formula (wherein R 1  is H or alkyl; R 2  is (α-H, #-OH) or oxo; and R 3  is N 3 , SCN, SH, SCH 2 Ph, SEt, SeCN, NHacyl, NCS or SO 2 CH 2 Ph), and the preparation thereof, and also of the 16α-amino aralogues thereof, from the corresponding 16#-bromo-17#-ols by reaction with a nucleophilic reagent capable of introducing a 16α-N 3 , SCN, SOH 2 Ph, SEt or SeCN group, followed, when necessary, by oxidation of 17#-OH to oxo and/or converting one 16α-substituent into another, e.g. (i) N 3  # NH 2  by reduction; (ii) NH 2  # NHacyl by acylation; (iii) N 3  # NCS by reaction with CS 2 /P(OEt) 3 ; (iv) SCN # SH by reduction; (v) SCH 2 Ph # SO 2 CH 2 Ph by oxidation. Compounds I are said to possess lipid-lowering activity, and may be made up with carriers into pharmaceutical compositions for unspecified routes of administration.
Patent GB-890421-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/20
Filed: 1959-12-18
Abstract: 890,421. Piston rings. RAMSEY CORPORATION. Dec. 18, 1959 [Dec. 22, 1958], No. 43118/59. Class 122 (1). A piston ring 11 comprises two axially spaced ring portions 18, 19, each provided, when the ring is free, with a plurality of circumferentially spaced gaps 29-32, at least one 31, 32 of the gaps being wider than the others. The ring portions 18, 19 are interconnected by a bight portion 20 having notches 28 therein connecting with the gaps 29-32. The widths of the gaps are designed so that when the ring is in its operative position, as in Fig. 6, the narrower gaps 29, 30 are closed whilst the wider gaps 31, 32 are open but of reduced width to thereby prevent the possibility of circumferential jamming of the ring in its groove 16. When a single pair of wide gaps are used they are preferably located diametrically opposite the ring joint 11a as shown in Fig. 1.
Patent GB-431314-A (GB)
Abstract: 431,314. Gunnery calculators. NAAM. LOOZE VENNOOTSCHAP NEDERLANDSCHE INSTRUMENTEN CIE NEDINSCO, 9, Molensingel, Venlo, Holland. Dec. 3, 1934, No. 34645. Convention date, Dec. 12, 1933. [Class 106 (i)] A director control apparatus for antiaircraft guns for determining the range of an aerial target comprises a recording mechanism for obtaining a trace of the observed range or height of target, a pair of slides movable transversely to the direction of movement of the record strip, a ruler mounted for angular adjustment on the slides, and a pair of cams rotatable and displaceable longitudinally in accordance with the altitude angle and an applied range respectively so as to adjust the slides and ruler that a line on the ruler is held aligned with the trace of the recording member. One cam is designed to use the range as the basis of the calculations for small angles of altitude (0‹- 30‹) while at higher altitudes the height is utilized. In the form shown in Fig. 2, the apparatus comprises a transparent recordstrip 1 driven at constant speed and a recording pencil 2 on the underside carried on a screwed spindle 4 driven by a hand wheel 8 operated in a follow-the-pointer manner in accordance with the movement of an index 11 driven by a shaft 14 to which is applied the observed range or height. Above the record strip is arranged a pair of screwed spindles 17, 26 on which are mounted slides 15, 16 driven by gearing operatively connected to a shaft 23. The spindle 17 can be adjusted independently by means of a hand wheel 20; the spindle 26 is supported in a member 27 displaceable in the direction of movement of the record-strip 1. The slide 15 carries a pivot U-U for a ruler 33 that is slotted to engage a pin 35 on the slide 16. The upper end of the ruler is transparent and is provided with a line 40. The member 27 and slides 15, 16 are adjustable by means of a pair of integral cams 42, 43 mounted on a squared shaft 44. The shaft 44 is rotated in accordance with the altitude angle and the movement of the cams longitudinally is regulated by gearing 45 ... 48 and a hand crank 49. The cam 42 is so constructed that the radii of each cross section corresponds to the times of flight of the projectile to reach the point of impact for definite ranges and different altitude angles. Cam 43 is designed to impart movement to its contact rod 54 in accordance with the range or the height the change over as shown in Fig. 3 being effected when the altitude angle equals 30‹. The part 58 of the cam up to 30‹ is circular while the part 59 from B through C to D is given by the formula radius from zero line 60=kET Sin alpha where ET is the range determined by the longitudinal position of the cam and k = # in. 30‹ = 2. With the parts adjusted as above described as index 36 on the slide 16 indicates the range or height on a scale 37 on the member 27. The range may also be read off from an index 50 on the wheel 46 and co-operating fixed scale 51.
Patent GB-978873-A (GB)
Title: Improvements in or relating to window blinds
Inventor: HEAP JOHN
IPC: E06B9/388
Filed: 1962-11-16
Abstract: 978,873. Venetian blinds. SUNVENE Ltd. Oct. 25 1963 [Nov. 16, 1962], No. 43359/62. Heading E1J. [Also in Division H5] The hollow bottom rail of a venetian blind or such a hollow rail substituted for any one of the laths, has an electric heater enclosed within, the heater being a resistance tape L woven from glass fibre yarn with one or more electrical conductors incorporated during weaving. The closure strip D of the hollow rail has ventilation slots P therein. The suspension cords G are formed of polyethylene terephthalate.
Patent GB-1224096-A (GB)
Title: Diaphragm housing for vacuum-operated ignition regulators
IPC: F02P5/10
Filed: 1969-09-02
Abstract: 1,224,096. Rotary distributers. FORD MOTOR CO. Ltd. 2 Sept., 1969 [5 Sept., 1968], No. 43378/69. Heading HlN. A diaphragm housing for a vacuum-operated ignition regulator of a distributer in an internal combustion engine, the regulator comprising a diaphragm 5 trapped between the flanges 3, 4 of disc-shaped housing sections 1, 2 and loaded by a return spring 8 and connected to an adjuster rod 11, has housing section 2 defining an atmospheric pressure space 7 and equipped with a tubular boss 12 which is slid over a cupped extension 14 of a mounting 13 fixed to the distributer, the arrangement being such that housing section 2 can be secured in any axial position which corresponds to a particular desired fitted load of the return spring 8. When in the required axial position, boss 12 is spotwelded to extension 14 at 17. Housing section 1 defines a vacuum space 6.
Patent GB-1116796-A (GB)
Title: Rodenticidal compositions
IPC: A01N25/00
Filed: 1965-10-13
Abstract: 1,116,796. Rodenticidal compositions. RICHARDSON MERRELL Inc. 13 Oct., 1965 [22 Oct., 1964], No.43477/65. Heading A5E. A rodenticidal composition consists essentially of a rodenticide and a bait which is kibbled corn with a preponderant screen mesh size of from 2.5 to 6 mesh (U.S. Standard Sieve). The kibbled corn is a product obtained by (a) hydrolysing cracked yellow corn under steam pressure to form a liquified and dextronized mass of the starch, (b) extruding the liquified mass from under steam pressure to form an expanded and solidified mass and (c) finally subdividing the expanded and solidified mass to a particle size of 2.5 mesh to 6 mesh. Suitable rodenticides are N - monoaryl thioureas such as N - (1 - naphthyl) thiourea or N - (2 - naphthyl) thiourea, phosphate esters such as hexaethyl tetrapolyphosphate, arsenic trioxide, strychnine sulphate, sodium monofluoroacetate, red squill, zinc phosphide, yellow phosphorous, thallium sulphate, 4 - amino - pteroyl glutamic acid 3 - (alpha - acetonylbenzyl) - 4 - hydroxy - coumarin (or its sodium salt), coumachlor, 3 - (alpha - acetonyl - furfuryl) - 4 - hydroxy - coumarin, 2 - pivalyl - 1, 3 - indandione and 3, 3 - methylene - bis (4 - hydroxy - coumarin). The kibbled corn may be impregnated or coated with a suspension, emulsion or solution of the rodenticide. Alternatively, the rodenticide may be added during the manufacture of the kibbled corn.
Patent GB-1484312-A (GB)
Title: Polyetherimides
IPC: H01B3/42
Filed: 1974-10-08
Abstract: 1484312 Polyimides GENERAL ELECTRIC CO 8 Oct 1974 [23 Nov 1973] 43577/74 Heading C3R A method of making a polyimide comprises effecting removal of an amine RNH 2  from a melt consisting essentially of a mixture of a bis-imide and a diamine H 2 N-R<SP>2</SP>-NH 2  in the presence of a catalyst which is an alkali or alkaline earth metal or basic compound. In the formulµ R is a C 2-8  alkyl or C 6-20  aromatic radical, R<SP>1</SP> is a C 6-30  aromatic radical and R is a divalent aliphatic or aromatic radical which may include one of several specified linking groups. In examples catalysts are potassium carbonate, magnesium benzoate, lithium, calcium hydride and sodium amide. Reference is made to Specification 1,469,482.