baber/WOPTO huggingface dataset:
Patent GB-1002398-A (GB)
Title: Superconductor memory cells
Inventor: BALDWIN JOHN PATRICK
IPC: H01L39/10
Filed: 1962-11-06
Abstract: 1,002,398. Superconductive devices. MULLARD Ltd. Nov. 11, 1963 [Nov. 6, 1962], No. 41945/62. Drawings to Specification. Heading H1K. A memory cell comprises a thin film of superconductor material exhibiting a magnetic field hysteresis effect, and a number of switching conductors, insulated from the superconductor film, for producing a magnetic field for switching the film from one state to the other. The hysteresis effect is that for a given temperature the film switches from superconducting to normal when the field increases to a value H A , and from normal to superconducting when the field decreases to H B  where H A >H B . The film is therefore provided with a permanent field half way between H A  and H B  and the switching conductors are provided with current reversible so as to take the resultant field either above H A  or below H B . The switching conductors may be on both sides of the superconducting film. A cell may consist of a substrate of synthetic sapphire or quartz glass upon which are successively deposited by vapour deposition layers of lead, silicon monoxide, tin, silicon monoxide, and lead, the tin being the hysteresis element and the lead forming the switching conductors. Other superconducting hysteresis elements can be indium, mercury thallium or lead. The switching conductors may also be of copper silver or gold. The permanent magnetic field may be obtained from a super conductor electromagnet. A plurality of cells may be provided on a common substrate. The conductivity state of the superconductor may be determined either by observing its change in current passing therethrough, or by using its property of excluding a magnetic field when in the superconducting state.
Patent GB-917346-A (GB)
Title: Improvements relating to laminated thermostatic metals
IPC: G01K5/66
Filed: 1961-11-24
Abstract: A bimetallic strip of relatively high electrical resistivity consists of a high expansion lamina bonded to a low-expansion lamina, the thickness of the high-expansion lamina being 30-84% of the total thickness of the lamin  and the lamin  being formed of alloys of the following percentage composition:-  High expansion lamina: .Mn.58-86 .Cu.9-27 .Ni.5-15  Low expansion lamina: .Cr.8-26 .Al.4-15 .Fe.the balance
Patent GB-1485363-A (GB)
Title: Hook
IPC: B66C1/34
Filed: 1974-09-27
Abstract: 1485363 Hooks FISONS Ltd 27 Sept 1974 [7 Sept 1973] 42157/73 Addition to 1412585 Heading E2A The lifting hook assembly of the main Patent is modified by the provision of a buffer grid 10, 11, 14 behind the hook or hooks to steady the load. The invention is described with reference to the embodiment shown in Fig. 2 of the Main Patent in which lifting hooks 4, 5 project from telescoping box sections 1, 2 having support trunnions 6, 7. The arms 10, 11 may be stiffened by brackets 12, 13, and the whole grid may be rotatable on the bar.
Patent GB-1202865-A (GB)
Title: Photographic apparatus and their calibration
Inventor: DENNER JAMES RAILTON
IPC: G03B27/72
Filed: 1966-09-23
Abstract: 1,202,865. Exposure control. W.H.HOWSON Ltd. Sept.15, 1967 [Sept.23, 1966], No.42488/66. Heading G2A. An enlarger comprises a main exposure light source whose intensity can be varied, a lightsensitive probe including a photo-electric cell which can be placed in any desired position in the image plane and which cell is in a variable resistance circuit including an ammeter, and a further auxiliary light source which can illuminate the cell as an alternative to the main light source, and to the same extent. As shown, the light source is contained in a box 3, and may include means for providing both a "main" and a "flash" exposure, as for example in Specification 1, 182, 598. The box 3 also contains the transparency holder, and other auxiliary optical elements. Two light-sensitive probes, 5 and 5', are shown, and can be disposed at any point on the easel 2 which carries the photo-sensitive copy material. These are connected to the control box 4 which houses all the circuitry, shown in detail in Fig. 3. The two probes are placed one in the highlight position, and one in the shadow position. A single probe, however, may be used. In operation, a transparency is placed in the enlarger, the light source switched on, and the probes 5, 5' placed in position. The resistance of the circuits including photo-electric cells 7 is adjusted (by a ganged switch SB) until the light intensities received by the two probes are at desired values, as shown by meters M3 and M4 which are in series with the cells 7. A trial run is then made, by replacing the probes with light-sensitive material, and effecting an exposure for a predetermined automatically controlled time. The material is then developed, and the density determined at those positions corresponding to the probes. If this is the desired density, the enlarger is correctly set up. If it is not, the main light source is calibrated as follows. It is switched off, and the auxiliary light sources 12 (one to each probe) switched on, and adjusted until the intensity emitted, and received by the cell 7 (considering one only, since identical conditions obtain for the other one) is the same as before, as indicated by the meter M4. The resistances in circuit with the cell 7 are now adjusted so as to restore the meter reading to that obtained in the trial run. The main light source is now switched on, and simultaneously the auxiliary sources 12 are switched off. (In this way difficulties consequent on the "rise time" of the cells is eliminated. ) The intensity is read by the probes in the same position as previously, and adjusted by a variable transformer V1, which controls the main light source so that the meters M3 and M4 give exactly the desired reading. Thus by using the main light source in its adjusted condition, and using the same development procedure as before, a record will be produced which has the correct range of densities over its whole range, within very close limits.
Patent GB-1255686-A (GB)
Title: Estrogen water-soluble derivatives and preparation thereof
Inventor: DUSZA JOHN PAUL
IPC: F01D5/30
Filed: 1969-08-26
Abstract: 1,255,686. Derivatives of estradiol and estriol. AMERICAN CYANAMID CO. 26 Aug., 1969 [31 Jan., 1969], No. 42523/69. Heading C2U. Estradiol is converted by the successive actions of formic acid, triethylamine-sulphur trioxide complex and triethylamine in the presence of a solvent, into the novel compounds estradiol 17-formate (I), triethylammonium estradiol-3-sulphate 17-formate (II) and triethylammonium estradiol-3-sulphate (III). Estriol is likewise converted into the novel compounds estriol 16,17-diformate (IV), triethylammonium estriol-3-sulphate 16,17-diformate (V) and triethylammonium estriol-3- sulphate (VI). Compounds I-VI are stated to be estrogenie agents, and may be made up with carriers into pharmaceutical compositions for oral and parenteral administration.
Patent GB-929003-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60G3/24
Filed: 1960-12-12
Abstract: 929,003. Motor vehicles. GESELLSCHAFT FUR LINDE'S EISMASCHINEN A.G. Dec. 12, 1960 [Dec. 11, 1959], No. 42698/60. Class 79(2) [Also in Group XXXII] A front wheel of a vehicle mounted on a stub axle of a wheel support member 85 (see Group XXXII) is driven through spur gearing 105 by a hydraulic motor 103.
Patent GB-1522647-A (GB)
Title: Accumulator
IPC: H01M4/66
Filed: 1975-10-21
Abstract: 1522647 Electrodes for secondary batteries BASF AG 21 Oct 1975 [26 Oct 1974] 43114/75 Heading H1B An electrode for a secondary battery having manganese dioxide as the active material has a base of graphite or Ti-C or Ti-N coated Ti, the base having a pore volume of at least 206 and an average pore diameter of 0À1 to 2 m.m. The other electrode may be graphite-resin coated with Zn, Mn, Pb, Cd or Fe.
Patent GB-1012702-A (GB)
Title: Electrophotographic developer
IPC: G03G9/09
Filed: 1962-11-14
Abstract: 1,012,702. Electro photographic developer. KALLE A.G. Nov 14, 1962 [Nov 22, 1961], No. 43131/62. Heading G2H. A developer for latent electro static images consists of a mixture of iron powder and a toner comprising a solid solution of dyestuff in a resin which assumes, as the result of the turboelectric effect, a negative charge with respect to iron which is at least three times the size of the charge which would be acquired by an identical quantity of a polystyrene resin. Preferably, the proportion by weight of resin to dyestuff is in the range of 20: 1 to 10: 1 and the proportion of toner to iron is in the range of 1: 15 to 1: 50 the resin may be a ketone resin, a malcurate resin, phthalate resin, "Vinsol" (Registered Trade Mark) and the dyestuff may be "Ceresschwarz", Chromogene Black Etoo, Sudantiefschwarz, Azo Oil Black. At least 55% of the particles of the toner may have a size between 10 and 20 Á.
Patent GB-1271521-A (GB)
Title: Treatment of chlorine
Inventor: KING JOHN HOWLISTON
IPC: C01B7/01
Filed: 1968-09-11
Abstract: 1,271,521. Purifying chlorine. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 Aug., 1969 [11 Sept., 1968], No. 43146/68. Heading B1L. In purifying impure moist chlorine gas by compressing it before drying the gas is drawn at 70‹C from an electrolytic cell (not shown) via a pipe 1 to a rotary screw compressor 2 driven by a motor 3 via a gear box 4. The gas is compressed to 50-250 p.s.i.a. whilst being irrigated by cool brine or calcium chloride fed via a pipe 13 from a ring packed cooling section 8. The compressed gas and irrigating brine is discharged via a pipe 5 to a brine collecting section 7 of a column 6. The compressed gas is then cooled in the section 8 and any entrained brine or water &c mist removed by a polyester filter 9 before passing the gas to a bubble plate section 10 where it is dried with Conc. H 2 SO 4 . Acid mist is removed by a glass fibre filter 11 before the dry cell gas is withdrawn via pipe 20 at 30‹C and 115 p.s.i.a. Cool brine is fed to the ring packed section 8 via a pipe 12 and brine collecting in section 7 is conveyed via a pipe 14 to a flash vessel 15 where any recovered chlorine is returned via the pipe 17 to the compressor 2. A pipe 16 discharges brine to a drain or to the electrolytic cell. Chlorine gas released from the conc. H 2 SO 4  by a flash vessel 18 is returned via pipes 19 and 1 to the compressor 2. The compressor is made of or lined with titanium or an alloy thereof. The bubble plate section 10 has trays made of plastics, ceramic material, glass, or plastics reinforced with asbestos.
Patent GB-1192639-A (GB)
Title: Process for the Polymerization of Vinyl Chloride
IPC: C08F14/06
Filed: 1967-09-22
Abstract: 1,192,639. Polymerizing vinyl chloride. A.C.S.A. APPLICAZIONI CHIMICHE S.p.A. 22 Sept., 1967 [24 Sept., 1966], No. 43321/67. Heading C3P. Vinyl chloride is polymerized in bulk or in the presence of a minor amount of a diluent at below 0‹ C. in the presence as catalyst of (a) 0À05-3% based on monomer of an organic hydroperoxide, (b) less than 0À5% of sulphur dioxide, the molar ratio of (a): (b) being 1:15 to 15:1 and (c) 0À1-10% of an aliphatic C 1 -C 6  mono- or di-hydroxy alcohol. Up to 20% of a comonomer may be present. The diluent, in minor proportion, may be a hydrocarbon or halogenated hydrocarbon. The product has high syndiotacticity and has terminal sulphonic acid groups.
Patent GB-1328179-A (GB)
Title: Diverting and sampling gate
IPC: B65G11/14
Filed: 1971-09-16
Abstract: 1328179 Shoots SHERRITT GORDON MINES Ltd 16 Sept 1971 [1 Oct 1970] 43325/71 Heading B8S An arrangement for diverting materia passing down a shoot 10 comprises a gate 12 movable between one position shown, where all the material is diverted from the shoot 10 into a branch shoot 24, and another position wherein the gate is housed in the shoot 24 and the shoot 10 is unrestricted, a seal 16 at one end of the gate sealing off the entrance to the branch shoot 24 when the gate is housed therein. A funnel 14 reduces the flow area within the shoot 10 above the gate 12, which gate has side walls 22 to guide the material therealong. Movement of the gate is controlled by a double acting pneumatic ram 30 and rod 28, and the gate may be formed as a sampling box whereby a sample of material flowing through the shoot 10 may be collected and discharged through a door in the branch shoot 24. In another embodiment, the gate moves laterally across the upright shoot into the position shown, the upright shoot having a further opening through which the gate passes laterally.
Patent GB-1518196-A (GB)
Title: Rubber composition
IPC: C08L101/00
Filed: 1975-10-22
Abstract: 1518196 Vulcanizing rubber YOKOHAMA RUBBER CO Ltd 22 Oct 1975 [25 Oct 1974] 43356/75 Heading C3E Sulphur-vulcanizable rubber compositions comprise a trithiocarbonic ester and an amineisocyanate addition compound. Examples are given in which (a) a natural rubber formulation comprising ethylene trithiocarbonate, dibenzyl trithiocarbonate, di-n-butyl trithiocarbonate, or the ester produced from sodium trithiocarbonate and p-xylylene dichloride, or pentamethylene trithiocarbonate, and a pyrrolidine/4,4<1>-diphenyl methane diisocyanate adduct and (b) a butadiene-styrene rubber formulation comprising the ester produced from sodium trithiocarbonate and p-xylylene dichloride, or pentamethylene trithiocarbonate, and the adduct as in (a) are vulcanized.
Patent GB-1482143-A (GB)
Title: High nitrile polymers
IPC: C08F279/02
Filed: 1974-10-08
Abstract: 1482143 Grafted butadiene-styrene rubbers; poly blends MONSANTO CO 8 Oct 1974 [9 Oct 1973 (2)] 43492/74 Heading C3G A graft polymer is produced by a process comprising (A) admixing (1)100 parts by weight of a rubbery polymer substrate having a butadiene content of 68 to 72% by weight and a styrene content of 28 to 32%, based on the total weight of butadiene-styrene rubbery substrate, which substrate has a refractive index of from 1À5375 to 1À5425, a particle size of from 0À06 to 0À2 micron, a gel content in the range from 40 to 95%, a swelling index of from 10 to 40 and a second order transition temperature (Tg) of less than - 20‹ C., (2) at least 10 parts of a first polymerizable monomer formulation comprising (a) from 0À1 to 2% of a non-conjugated diethylenically unsaturated monomer; (b) from 0 to 30% of acrylonitrile, alone or together with up to 20% methacrylonitrile; (c) from 40 to 60% of a vinylidene aromatic monomer; and (d) from 20 to 50% of a C 1  to C 8 -alkyl ester of acrylic or methacrylic acid, wherein the per cent by weight is based on the total weight of the monomer in the first polymerizable formulation; (B) subjecting the mixture to polymerization conditions to effect polymerization of said monomer formulation and grafting of the polymer produced on to the rubbery substrate; (C) admixing said graft polymer with a second polymerizable composition comprising from 55 to 85% of acrylonitrile or a mixture of acrylonitrile and methacrylonitrile containing up to 20% of methacrylonitrile and from 45 to 15% of a monovinylidene aromatic monomer, wherein the per cent is based on the total weight of the monomers in the second polymerizable monomer mixture; and (D) subjecting the second mentioned mixture to polymerization to produce grafting of the polymer being produced on to the said graft polymer to form a composite graft polymer, said first and second polymerizable compositions comprising at least 38% by weight ethylenically unsaturated nitrile monomer and 15 to 250 parts of monomer per 100 parts of rubbery substrate. Examples are given in which the butadiene-styrene rubber is grafted in aqueous media with (i) styrene, acrylonitrile, methyl methacrylate and ethylene glycol dimethacrylate, followed by acrylonitrile, styrene and, optionally, methacrylonitrile, the resulting graft polymer being blended with styrene acrylonitrile copolymer; (ii) styrene, acrylonitrile, methyl methacrylate and ethyleneglycol dimethacrylate, followed by styrene and acrylonitrile, the resulting graft polymer being blended with acrylonitrile-styrene-methyl methacrylate copolymer; (iii) styrene, acrylonitrile, methyl methacrylate and allyl methacrylate followed by styrene and acrylonitrile, the resulting graft polymer being blended as in (i) and (iv) styrene, acrylonitrile, methyl methacrylate and vinyl crotonate, followed by acrylonitrile and styrene, the resulting graft polymer being blended as in (i).
Patent GB-1292082-A (GB)
Title: High-speed pulse delaying circuit
IPC: H03K3/335
Filed: 1970-09-11
Abstract: 1292082 Transistor pulse circuits MATSUSHITA ELECTRIC INDUSTRIAL CO 11 Sept 1970 [17 Sept 1969] 43644/70 Heading H3T An input pulse (a, Fig. 2, not shown) is integrated by R12, C13, R14 and the resultant signal (b) applied to an avalanche transistor 17 which is normally off but turns on to generate an output pulse (c) when the reference voltage at its emitter is exceeded. The reference voltage is generated by a transistor 26, and the collector load 22 of T17 is either a pulse transformer primary or a resistor. The resistor 14 produces an initial rapid rise (31) in the output of the integrator to reduce the minimum delay available, the latter being adjusted by R28 in T26 base bias circuit.
Patent GB-1235757-A (GB)
Title: Display panel comprising selectively ignitable array of gaseous discharge cells
IPC: H01J11/00
Filed: 1968-09-13
Abstract: 1,235,757. Matrix display devices. BURROUGHS CORP. 13 Sept., 1968 [18 Sept., 1967], No. 43740/68. Heading G5C. [Also in Division H3] A display device comprises an array 20 of cells 30 each containing an ionizable gas and carrying two external electrodes, means 110, 120 coupled to said electrodes for applying energizing signals to the cells to fire them and a circuit coupled to the cells for applying spaced apart positive and negative sustaining pulses including means for generating positive and negative pulses separately and at selectively controllable intervals. The pulses are formed by two NPN transistors 130, 140 coupled to transformers 170, 240 to which square wave pulses are applied from sources 150, 220. The transistors form part of a resonant circuit including capacitors 280, 310 and inductance 270. A positive pulse from source 150 turns on transistor 130 and generates a sinusoidal pulse. At maximum negative potential the circuit is broken by a diode 200 and the potential across the elements 30 remains constant until a negative pulse from input 220 causes transistor 140 to generate a similar sinusoidal pulse which is cut off by diode 260 and the potential retained until transistor 130 is again actuated. Circuit 190 provides power to compensate for energy lost during switching and circuit 300 energizes all the cells for short periods at low frequency to maintain some charge thereon and assist in firing.
Patent GB-1121206-A (GB)
Title: Lock assembly with a removable bolt
Inventor: WALTERS RUSSELL WILLIAM
IPC: E05B27/04
Filed: 1966-09-30
Abstract: 1,121,206. Locks. NATIONAL LOCK CO. 30 Sept., 1966, No. 43899/66. Heading E2A. A lock assembly with a lock cylinder 10 having a plurality of pin tumblers 31 and a cylindrical plug 21 rotatably mounted in the lock cylinder and co-operating with the pin tumblers is characterised in that the plug has a keyway for a key to actuate the tumblers and rotate the plug, the cylinder has a transversely extending passage 17, therethrough adjacent the rear end, and removable bolt 11 is reciprocably mounted in the passage and pair of spaced pins 23 extend from the rear end of the plug for reciprocating the bolt upon turning of the plug, the bolt has an actuating recess 39 receiving the pins and a spring 46 in a recess 45 in the bolt co-operates with the cylinder for removably retaining the bolt in the cylinder. When the key is turned to the bolt unlocking position, a pin 23 moves from one end of the open ended recess 39 to behind one of a pair of projections extending into the recess to initiate projection of the bolt, on further rotation of the key the other pin 23 moves behind the second projection and the first pin moves into alignment therewith. The outwardly turned end 47 of the spring 46 moves along a channel 48 in the end of the cylinder and engages a shoulder 49 preventing removal of the bolt. A hole 51 in the end of the cylinder allows insertion of a tool to depress the end of the spring to disengage the shoulder to free the bolt and allow its removal.
Patent GB-1007556-A (GB)
Title: Improvements in or relating to drive-transmission devices
IPC: F16C1/00
Filed: 1961-12-08
Abstract: 1,007,556. Toothed gearing; Bowden mechanisms. H. T. GOLDE G.m.b.H., H. GOLDE and M. LOFFLER, (trading as H. T. GOLDE G.m.b.H. & CO. KOMM GES Dec. 8, 1961 [Dec. 9, 1960; Oct. 14, 1961], No. 44122/61. Headings F2K and F2Q. A rack-and-pinion mechanism comprises a toothed wheel engaging a hollow rack constituted by a flexible helical coil within guiding means extending away from the neighbourhood of the toothed wheel. A toothed driving wheel 1 engages with a flexible helical coil 3 of steel or plastic carried in a tubular guide member (not shown). The coil 3 may be restrained against compression movement by a planar or a twisted strip 9 engaging the coil by notches 7. The internal support may be tricorn in crosssection, with or without a reinforcing core of wire, and having projections on one flange to engage every third convolution of the coil. In the embodiment shown in Fig. 9, the coil portion 32 is made integral with a supporting helically wound strip 31 whose edges 33, 34 are radiused and held in abutting relation by a central tensioning member 35 to allow both compression and tension in the coil member. In a further embodiment the coil and internal support are formed as shown in Fig. 10 with interengaging flanges. The mechanism may be used for the operation of the windows or sliding roof of an automobile and driven by hand or by an electric motor.
Patent GB-1525460-A (GB)
Title: High-voltage circuit-interrupters
IPC: H01H33/915
Filed: 1974-10-11
Abstract: 1525460 Fluid-blast circuit breaker REYROLLE PARSONS Ltd 10 Oct 1975 [11 Oct 1974] 44231/74 Heading H1N The moving contact assembly of a fluid-blast interrupter comprises a tubular main contact 22 and an auxiliary tubular contact 25 containing a rooting contact 27, the main contact 22 being attached to the wall 14 of a puffer cylinder 13. At the commencement of the opening stroke the main contact 22 moves before to the auxiliary contact 25 until, at the position shown, an opening 29 in the auxiliary contact is aligned with vent 16 to allow gas to exhaust from the bore 26 assisted by the deflector 28.
Patent GB-1020741-A (GB)
Title: A feeding device for progressing hingedly interconnected cards
IPC: D04B15/66
Filed: 1963-11-11
Abstract: 1,020,741. Knitting machines. UNIVERSAL MASCHINENFABRIK DR. RUDOLF SCHIEBER G. m. b. H. Nov. 11, 1963 [Nov. 12, 1962], No. 44351/63. Heading D1C. [Also in Division F2] Cards, e.g. jacquard cards in a straight bar knitting machine, are connected into a chain and carried on a polygonal cylinder 12 mounted on a spindle 1 on which are also mounted a feed wheel 2 and a control disc 7 enclosed in a casing 3 having lugs 4, 5 which, when permitted by disc 7 engage the wheel 2 to rotate it as the casing 3 is rotated, movement equivalent to at least two faces of the cylinder 12 being possible in either sense. Lugs 4, 5 are spring biased Fig. 2 (not shown) and are oppositely bevelled as at 4a and 5a. Disc 7 is adjusted by linkage 10 and casing 3 is oscillated by a rod 8 connected to the machine drive.