baber/WOPTO huggingface dataset:
Patent GB-1295060-A (GB)
IPC: B60W30/18
Filed: 1969-12-30
Abstract: 1295060 Variable speed gearing SOC ANON AUTOMOBILES CITROEN 30 Dec 1969 [31 Dec 1968 10 Dec 1969] 63241/69 Heading F2D A vehicle gear-box 2 with n (e.g. four) forward ratios changed by relay means 4 (e.g. upchange and downchange relays 105, 106 to step a rotary switch 103) is controlled by an electronic device 1 comprising a generator 8 of a voltage signal U dependent on vehicle speed (e.g. by a tachogenerator) and the position of the accelerator pedal 11, (n - 1) upchange 12, 23, 34 and (n - 1) downchange circuits 43, 32, 21, all in parallel, and each having a detector for the signal U which triggers at a distinct voltage (different for each detector) to pass a signal (e.g. via an AND gate 14, 16 and an OR circuit 22, 27) to an output stage 25, 31 which thereby produces a pulse to change gear, there being in parallel with the circuits 12, 23, 34, 43, 32, 21, a manually controlled generator 6 to produce up and down change pulses manually (e.g. by moving a lever 7 down, f 1 , or up, f 2 ). Possible compositions of the various boxes are shown in schematic form (with capacitors, diodes, resistorsand capacitors) and some in block form in Figs. 2, 4 to 11 and 13 (not shown). The apparatus may include an illuminated indicator 195 showing which gear is engaged. It may be linked with the clutch 186 and/or the brake, Fig. 16 (not shown), by increasing the resistance between the tachogenerator 9 and the variable resistor 10. The device may include connections between the detectors of the upchange circuits and corresponding downchange circuits, Fig. 13 (not shown). The apparatus may include safety circuits (e.g. 29) to allow engine braking &c.
Patent GB-1301304-A (GB)
IPC: B05B5/053
Filed: 1969-12-30
Abstract: 1301304 Electrogasdynamic generators ELECTROGASDYNAMICS Inc 30 Dec 1969 [31 Dec 1968 19 Dec 1969] 63324/69 Heading H2A [Also in Division B2] In an E.G.D. generator, particularly for use with an electrostatic spray gun, turbulence is produced in the moving gas stream by surface discontinuities adjacent a corona discharge zone formed by ionizing and attractor electrodes 124, 194. As shown in Fig. 4, the electrodes are located between a conical insulating transition section 192 and an insulating sleeve 212 having a slightly diverging bore 158, and the discontinuities are formed by recesses 220, 216 on either side of electrode 194. A stream of seeded air enters the generator under pressure at an annular region 114 formed around an insulating sleeve 190 which positions the electrode 124 coaxially with respect to electrode 194, and, after accelerating through the section 192 to about sonic velocity, is converted into a charged aerosol by the electrode which sweeps through the bore 158 and impinges on a chargecollecting electrode 198. Only one recess, 220, may be provided or alternatively, Fig. 5 (not shown), the discontinuities may be formed by a stepped bore in the section 192. A paint spray gun incorporating the generator is shown in Fig. 3. The supply of seeded air is controlled by a trigger 96. After impinging on the electrode 198, the air stream expands into a bore 156 formed in a barrel 34 surrounding the generator and flows through an exit conduit 160 to the atomizing and charging assembly 36 to which paint is also supplied through a hose 24. Electrode 198 is connected to a charging electrode located adjacent the nozzle through which the atomized paint particles leave the gun. A chamber for seeding the air e.g. with paint solvent, is described, Fig. 2 (not shown).
Patent GB-1306458-A (GB)
Title: Rollers
IPC: D21F3/08
Filed: 1970-09-04
Abstract: 1306458 Rollers BELOIT CORP 4 Sept 1970 42496/70 Heading F2U A pair of rollers 16, 18 define a nip through which a web W may pass, at least one of the rollers comprising a core surrounded by a non- woven mat (e.g. fibres of paper, nylon, cotton, sisal asbestos, or polyester, cellulose acetate, rayon or polyolefin fibres) bonded with a thermosetting resin (e.g. phenolic, urea, melamine, polyester, epoxy or acrylic).
Patent GB-1308708-A (GB)
Title: Resistors and heating elements
IPC: H05B3/28
Filed: 1970-12-09
Abstract: 1308708 Laminar resistance heating elements LANGLEY LONDON Ltd 9 Dec 1970 58459/70 Heading B5N [Also in Division H1 and H5] A heating element or resistor 1 comprises a patterned foil 2 on a mount 4 of resin-saturated insulating material enclosed between layers 5 of resin-bound insulating material with a lower resin content. The resin is a silicone resin, and the mount 4 contains about 25% by weight, whereas the layers 5 contain about 10%. Both the mount 4 and layers 5 are of micaceous material such as mica paper. Preferred thicknesses are specified. The assembly is bonded together by curing in a press at high temperature. The resistance pattern 2 is formed by etching or spark erosion technique. The final product may be flat or shaped, e.g. as a cylinder or cone. Specification 1,166,258 is referred to.
Patent GB-1309609-A (GB)
Title: Sliding tongue/latch needles and mountings therefor in knitting  machines
IPC: D04B27/06
Filed: 1971-07-19
Abstract: 1309609 Knitting-machines; needles WIRKMASCHINENBAU KARL - MARX - STADT VEB 19 July 1971 33783/71 Heading D1C A sliding-tongue needle includes a grooved stem portion having two contiguous parts of different wall thickness, the thicker part being remote from the hook. Several needles are secured with their thicker parts in a mounting.
Patent GB-1316956-A (GB)
Title: Lightweight radar
IPC: G01S13/02
Filed: 1969-09-11
Abstract: 1316956 Radar EMI Ltd 9 Sept 1970 [11 Sept 1969] 44804/69 Heading H4D A hand held electronically scanned (frequency swept) pulsed radar Fig. 1(a) is described, the CRT sector PPI display 18 Fig. 2(b) being viewed through eyepiece 3 of the radar with the actual sector of terrain Fig. 2(a) being scanned, being viewed through eyepiece 2. The aerial housed in lateral extension 5 is etched on a stripline line sheet to give a stripline array 14" x 14". A Gunn effect diode is used as the transmitter and transmits pulses at 10 Kpps having their carrier frequency swept at 50 c/s to cause the aerial to transmit and receive in a 50 c/s scanning beam, sweeping out a Œ 30 degrees, 60 degrees wide sector. The persistance of the CRT is so short (20 ms. decay time) that the user can manually sweep the entire radar over the terrain without giving blurred (tailed) images. The radar can be swivel mounted on a tripod.
Patent GB-1324987-A (GB)
Title: Frequency modulator arrangements including voltage controlled  multivibrator circuits
IPC: H03K7/06
Filed: 1969-08-13
Abstract: 1324987 Multivibrators; pulse modulation circuits EMI Ltd 3 Aug 1970 [13 Aug 1969] 40571/69 Headings H3T and H4L A pulse frequency modulator comprises a conventional multivibrator formed by reciprocally coupled transistors T1, T2 (Fig. 1, not shown), a stabilized bias supply 2, 12; RV1, RV2 connected to the base electrodes of T1, T2 for setting the normal operating frequency, at least one further transistor T4, T5 for supplying the operating current to T1, T2 and having its base biased from the stabilized potential as well as having its base-emitter junction arranged to form a temperature compensating junction for either of transistors T1, T2 and an arrangement for supplying a variable input voltage at 3, 4 to the base electrodes of T1, T2 for modulating the multivibrator output frequency. In operation, an input signal applied at 3, 4 alters the base drive of T1, T2 and hence the operating frequency. The setting of RV1 determines the output voltage at 13. In Fig. 5, the multivibrator output is further amplified by T4, T5. The stabilizer 12 may be of an integrated circuit or simply be a Zener diode (Fig. 6, not shown) for low current operated circuits. The output frequency is made variable by the adjustable potentiometer RV2.
Patent GB-1326301-A (GB)
Title: Binary memory devices
IPC: G11C13/06
Filed: 1972-06-20
Abstract: 1326301 Magnetic storage devices NATIONAL RESEARCH DEVELOPMENT CORP 28 June 1972 [12 July 1971] 32624/71 Heading H3B In a static bubble domain storage device each information bit is stored in a discrete area of a sheet of magnetic material having an easy axis of magnetization normal to the sheet. Each area has a plurality of bubble domains magnetized in one direction along the axis, the rest of the area being oppositely magnetized, the direction of magnetization representing a "1" or a "0". Fig. 1 shows a magnetic sheet having bubble domains (dark regions) within a storage area defined by conductors 12, 14, 16, 18. If these conductors are pulsed coincidently the magnetization is reversed, as in Fig. 2. Fig. 1 thus represents storage of a "0" and Fig. 2 shows storage of a "1". The storage sheet is optically transparent, and the stored bits are read out as in Fig. 3, where rectangular photoconductive sensing areas corresponding to the storage areas are cut from a photoconductive sheet 34. Each sensing area has a pair of electrodes such as 40, 42. A polarization analyser 32 is disposed between the storage sheet and the sensing sheet, and polarized light 30 is incident on the storage sheet. The analyser is arranged so that it passes light corresponding to the direction of magnetization indicated by the lighter areas of Figs. 1 and 2 and blocks light from the darker coloured areas. Suppose now that the storage area being read is area 20 of Fig. 1; a pattern of light will fall on the corresponding sensing area, and will form a continuous path between the electrodes, lowering the resistance between them. If however, region 20 of Fig. 2 is read, the light falling on the sensing area is a pattern of discrete spots and there is no continuous path activated between the electrodes so that the resistance between them is high. The value of the resistance thus shows whether the storage area contains a "0" or a "1". Photodiodes may also be used as sensors. To prevent the domain pattern changing with switching, which might lead to stripe domains running across the storage area and hence preventing operation of the readout device, the domains may be pinned by using Permaloy dots on the sheet, or by scoring it, or by using a polycrystalline sheet whose grain size is either similar to that of each domain or is very much smaller. Suitable domain materials are Eu 0À6  Y 2À4  Ga 1À1  Fe 3À9  O 12  on a gadolinium gallium garnet substrate; the domain material is grown on the substrate, and the strain produced by lattice mismatch gives rise to an easy axis of magnetization normal to the grown film. Domains are set up in this material by a steady bias field and a simultaneous bias field, after which the domain pattern remains stable provided the switching fields are normal to the film. Other materials, such as Y 3  Ga 1  Fe 4  O 12 , may be used.
Patent GB-1328882-A (GB)
Title: Ion sources for mass spectrometers
IPC: H01J49/14
Filed: 1971-04-28
Abstract: 1328882 Ion sources UNITED KINGDOM ATOMIC ENERGY AUTHORITY 28 April 1971 [6 May 1970] 21955/70 Heading H1D An ion source for a mass spectrometer comprises an ionizing region 1, and successively spaced therefrom, a first electrode 3, a second electrode 4, a focusing electrode 5 and a collimating electrode 6, all said electrodes having slits for the passage of ions, the arrangement being such that after a cross-over in the plane of the first electrode 3, a virtual image is formed on the incident side of the second electrode 4, from which electrode a divergent beam leaves and is acted upon by focusing electrode 5 to provide at the collimating electrode 6 a beam whose width is only slightly greater than the width of the slit therein. At the collimating slit the beam may form a real image or be slightly divergent.
Patent GB-1331668-A (GB)
Title: Device for balancing axial thrust on the impeller shaft of a  centrifugal pump
IPC: F04D29/04
Filed: 1971-10-14
Abstract: 1331668 Centrifugal pumps H YOKOTA and S YOKOTA 14 Oct 1971 47809/71 Heading F1C A device for balancing axial thrust on a centrifugal pump shaft 3 comprises a lowpressure chamber 9 connected at 8 to the suction side of the pump and located axially adjacent a high-pressure chamber 7 containing at least one impeller 2, an axially-displaceable thrust drum 10 between the two chambers, a balancing disc 14 fast with the thrust drum and of greater cross-sectional area than it, and a thrust disc 15 fixed to the pump shaft, a balancing chamber 19 defined by the discs 14, 15 being in communication with the high-pressure chamber 7 through the disc 14 and the drum 10 and with the lowpressure chamber 9 through a gap 17 formed between the opposing peripheral edges 14a, 15a of the discs. The communication through the disc 14 and drum 10 takes place via an annular gap 18, an annular clearance 12 and an annular space 10c. In addition, a passage 20 may be provided. The cross-sectional area of the drum 10 is approximately equal to that of the eye of the or each impeller 2. The shaft 3 and the disc 15 are axially non-displaceable. The drum 10 and disc 14 are prevented from rotating by a lug 14c but are free to move axially until they are in equilibrium under the forces acting on them, the pressure within the balancing chamber 19 depending on the size of the gap 17 and therefore on the axial position of the drum and disc. When the pressure in the balancing chamber 9 is such that the drum 10 and disc 14 are in equilibrium, it is also such that the net force on the disc 15 balances the impeller thrust.
Patent GB-1335361-A (GB)
Title: Track engaging assembly
IPC: B62D55/12
Filed: 1972-01-12
Abstract: 1335361 Endless track vehicles E M COMELLAS 12 Jan 1972 1354/72 Heading B7H A track engaging assembly for an endless track vehicle includes a shaft and a plurality of plates, all having the shape of a regular polygon with the same number of sides, all secured to the shaft at their centres and arranged in parallel planes perpendicular to the shaft, at least any two groups of plates being spaced from an adjacent group longitudinally of said shaft, so that at least one main face of each plate is spaced from the opposite main face of an adjacent plate, and each side having its sides positioned at an angle to the sides of the adjacent plate, said angle being equal to half the angle subtended at the centre of the plate by one side of the plate. The assembly may be used as a drive sprocket for the track or as a track tensioning idler member. As described the plates 3, 3<SP>1</SP> are all square and are all spaced from one another along a shaft 1. The assembly A is designed to be used with a track B of the type described in Specification 1,335,172 and consisting of a plurality of pivotally interconnected blocks 5, 6 arranged in rows, the blocks in any one row being displaced by half the length of a block from the blocks in the adjacent rows. Two types of blocks are used, the blocks 5 having a flat inner surface 14 and the blocks 6 being taller and having a flat inner surface 17 and a curved surface 24. The plates 3 have sides 4 which engage the flat surfaces 14 of blocks 5 and the plates 3<SP>1</SP> (which are smaller than the plates 3) engage the flat surfaces 17 of the blocks 6. If the blocks 5, 6 have curved inner sides then the sides of the plates may be convex (4a) or concave (4b) to match the shape of the blocks. The blocks 6 are arranged so that the curved sides 24 (Fig. 2) form a path for wheels 26. Each wheel 26 consists of two flanged metal discs secured together along their flanges to form an all metal rigid rim 27. As shown the track consists of four rows of blocks 5, 6 and four plates 3, 3<SP>1</SP> but an eight row track can be formed in a similar fashion. In a modification (not shown) the shaft has four square plates of equal size which engage four rows of the blocks 5 which are bounded by a row of blocks 6 at each side.
Patent GB-1343166-A (GB)
Title: Ship berthing displays
IPC: B63B49/00
Filed: 1971-08-11
Abstract: 1343166 Indicating apparatus ESSO RESEARCH & ENG CO 4 Aug 1972 [11 Aug 1971] 37635/71 Heading G1J A ship berthing display comprises a pointer 61 movable in translation and rotation, its position in translation indicating the distance b of the centre of the ship S from the jetty J in a direction normal to that of the centreline of the ship when finally docked, and its angular position indication the orientation c of the ship relative to the jetty, and a pointer 71 movable only in translation to indicate the position of the ship relative to the jetty in a direction parallel to the centreline of the ship when finally docked. A slider 51 movable between guide rollers 53-59, one of which is driven in response to a first meter, carries a second meter having a centre-pivoted pointer 61. A third meter 69 drives a roller 65 to move a transparent sheet, on which the pointer 71 is marked, above the pointer 61 in a direction normal to the direction of movement of the slider 51. A cover glass 73 carries parallel lines 77, 79 and parallel lines 81, 83 which represent permissible limits for the pointers 71 and 61 respectively during the final stages of jetty approach. For different conditions, the cover glass is changed. Alternatively, a each of lines 77-83 is on a separate strip of glass adjustably positioned in the bezel 75. In an alternative embodiment, the pointers and reference lines form part of a CRT display which also includes a mimic diagram of the ship and the jetty in their correct relative positions.
Patent GB-1343774-A (GB)
Title: Unsaturated polyester resin compositions
IPC: C08L67/06
Filed: 1971-04-29
Abstract: 1343774 Cellular unsaturated polyester resin compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 29 April 1971 [12 May 1970] 22909/70 Headings C3C and C3P A composition comprises cellular unsaturated polyester resin beads in a matrix comprising a mixture of an alkyd and an ethylenically unsaturated monomer. The cellular beads may be made by dividing into discrete droplets an emulsion having as the continuous phase a liquid monomer having dissolved therein an emulsifier capable of producing a water-in-oil emulsion, an aqueous liquid as the dispersed phase and a polymerization catalyst, and polymerizing the monomer while maintaining the emulsion as discrete droplets. In Examples 1-3, 7-11, cellular beads were made from an emulsion containing water, styrene; a propylene glycol/fumarate/iso- and ortho-phthalate polyester or an alkyd derived from and maleic acid; tert. butyl perpivalate, dimethylaniline, hydrogen peroxide, methylethyl ketone peroxide, sodium polymethacrylate, glass fibres, triethanolamine, 2,4-dichlorobenzoyl peroxide and/or hydrolysed polyvinylacetate. In Examples 4-6 and 8-11 the above cellular beads were incorporated, with optionally glass staple, into matrices consisting of the same composition as that used to prepare the beads or a mixture of a commercial unsaturated polyester resin, styrene, methylethyl ketone peroxide and cobalt octoate. The cells of the beads may contain air, water or an aqueous solution.
Patent GB-1348309-A (GB)
Title: Fruit machines
IPC: G07F17/34
Filed: 1971-06-15
Abstract: 1348309 Coin-freed gaming machines BELLFRUIT MFG CO Ltd 6 June 1972 [15 June 1971] 27884/71 Heading G4V A gaming machine comprises display means which displays two or more rows of symbols and operates to change the symbols in all of these rows during each play of the machine, and individual selector means corresponding to each row and operable to select the respective row as a pay-line so that the machine awards prizes dependent on the combination of symbols in that row. In the embodiment shown the display means comprise three rotatable reels, as in a conventional fruit machine, and push-buttons 2 are provided for the selection of the three rows of symbols visible in window 1. Alternatively each row may be selected by the deposition of a coin in a respective coin slot. The credit accumulated by the deposition of coins in slots 3, 4 is indicated in window 6 and is reduced by one on the depression of each button 2, lamps 13 being illuminated to indicate the rows selected. After selection of one or more rows the reels may be set in motion by depression of button 8 the selection of further rows and insertion of additional coins then being prevented. The win decoder circuitry comprises, for each reel, a stationary contact board with three concentric rings of pairs of contacts and three separate wiper arms rotatable with the reel, and selected pairs of contacts from the corresponding rings of each reel are connected in series with the appropriate selection button 2. When a winning combination of symbols in a selected row is detected a win relay is energized to trigger pay out means comprising a timer and coin dispenser, the timer issuing pay out pulses to the dispenser and, after various preset times, opening respective switches in the prize-winning series circuits thus de-energizing the coin relay and terminating coin dispensation after a predetermined prize associated with the particular prizewinning circuit has been paid-out. As an additional feature under certain circumstances the selection of one row may result in the automatic, free, selection of another.
Patent GB-1350271-A (GB)
Title: Antibiotic and a process for its preparation
IPC: C07G11/00
Filed: 1971-07-16
Abstract: 1350271 Antibiotic proticin FARBWERKE HOECHST AG 16 July 1971 [18 July 1970] 33484/71 Heading C2A The new antibiotic Proticin is characterized as being an acidic substance forming salts with bases; soluble in water, chloroform, tetrahydrofuran, acetone, C 1 -C 5  alkanols, ethyl acetate and pyridine, and difficultly soluble or insoluble in acidified water, petroleum ether, carbon tetrachloride and cyclohexane; having an ultra-violet absorption spectrum as shown in Fig. 1 with maxima at 284, 272À5, 264 and 235 nm., and an infra-red absorption spectrum as shown in Fig. 2 with peaks at 3400, 3080, 2920, 2820, 1725, 1640, 1445, 1370, 1160, 985, 890 and 750 cm<SP>-1</SP>; showing a specific rotation [α]<SP>20</SP> D  = - 78 (C = 0À35 in ethanol) ; giving positive colour reactions with chlorosulphonic acid/ glacial acetic acid, Liebermann-Burchard solution, antimony trichloride, potassium permanganate, and ammonium molybdate/perchloric acid, and negative reaction to ferric chloride, ninhydrin, dinitrosalicylic acid, tetraphenyl-tetrazolium chloride, and Morgan-Elson, Sakaguchi, Ehrlich, Dragendorff and Pauly reagents; and containing the elements C, H, O and P, the sodium salt having a found analysis of: C=63À8%, H=7À8%, O=19À8%, P=4À4%, Na=3À2% and the molecular formula Determination of the phosphorus content by mass spectrometry gave the expected theoretical value of 5À4%. Proticin is prepared by cultivating Bacillus licheniformis var. mesentericus (ATCC. 21552) in a nutrient medium containing assimilable sources of carbon and nitrogen, and isolating the resulting proticin and optionally converting it to a base salt. The cultivation is preferably conducted aerobically, but may be anaerobic. The antibiotic may be extracted from the whole culture or the cell-free supernatant with a waterimmiscible solvent, e.g. ethyl acetate, or from the separated cells by extraction with acetone or an alkanol. Alternatively, it may be precipitated from the cell-free supernatant either by acidification or by adding an aqueous solution of a calcium, barium or silver salt to form an insoluble complex with the proticin. This complex is then treated in aqueous suspension with ethylene - diamine - tetra - acetate or an anion (e.g. sulphate) to respectively bind or precipitate the metal and liberate the proticin, which is extracted with a water-immiscible solvent. The antibiotic is isolated by evaporation of the solvent or precipitation with a miscible non- solvent, and purified by chromatography on cross-linked dextran gel, silica gel or alumina, the impurities being first eluted with an isopropanol/water/ammonia mixture and then the antibiotic eluted as the ammonium salt using an isopropanol/water mixture. Pharmaceutical compositions having antibiotic activity against gram-positive and-negative bacteria comprise the antibiotic Proticin or a physiologically acceptable base salt thereof together with a pharmaceutically acceptable carrier.