baber/WOPTO huggingface dataset:
Patent GB-1395242-A (GB)
Title: Vacuum gauges
IPC: G01L19/14
Filed: 1972-10-06
Abstract: 1395242 Measuring pressure electrically INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 6 Oct 1972 [8 Oct 1971 14 Oct 1971 15 Nov 1971] 46322/72 Heading GIN A vacuum gauge consists of a tubular member 3 sealed at one end 4 and having means 17 for connecting the interior of the member 3 with the interior of a vessel whose internal pressure is to be measured, an electrically resistive member 7 suspended in the member 3, and a housing 1 secured to the member 3 and containing electrical circuitry 2 for monitoring the resistance of member 7, the circuitry including a bridge circuit having the  resistive member 7 connected in one arm thereof. As shown, the circuitry is mounted on a circuit board, Figs. 3, 4 and 5 (not shown), the bridge being a self-balancing bridge. A reference temperature dependent resistor, mounted in another arm of the bridge, may be provided in the form of a coil surrounding the member 3, Fig. 6 (not shown). As shown in Fig. 1, the member 7 is in the form of a coil tensioned by a wire 6, the member 7 and wire 6 being connected to the electrical circuitry via wire 10, 11 mounted in the seal 4. As shown in Fig. 7, the member 7 is in the form of a wire wound in tension around two members 18 of angle or star-shaped cross-section. One end of wire 7, which may be of nickel or ansterite, is connected to wire 6 while the other end is connected to wire 10.
Patent GB-1131184-A (GB)
Title: Inductor for continuous induction heating of bars
Inventor: SMEJKAL MIROSLAV
IPC: H05B6/02
Filed: 1966-10-18
Abstract: 1,131,184. Induction heating. ZAVODY ELEKTROTEPELNYCH ZARIZENI NARODNI PODNIK. 18 Oct., 1966, No. 46471/66. Heading H5H. A device for continuously heating bars comprises a plurality of rings 6 fixed to a base-plate 8, each ring having opposed inwardly directed fingers 4, Fig 3 (not shown), for guiding a bar to be heated, and helical conductors 1, 2 attached to the rings by opposed insulating lugs 7 and through which alternating current is passed. A cooling tube 3 is provided. The bars (5) may rotate during the heating.
Patent GB-1085454-A (GB)
Title: Compositions for the formation of polyether-urethane/polyurea copolymers
IPC: C08G18/10
Filed: 1965-11-03
Abstract: Polyether-urethane/polyurea copolymers are produced by heating a composition comprising (1) the reaction product of (a) an isocyanato-terminated prepolymer formed by the reaction of a polyether glycol with an excess of an aromatic diisocyanate with (b) a ketoxime having a M.W. of less than 200 and (2) at least one organic primary diamine having a pkb of less than 10.6.  The preferred polyether glycols are polytetramethylene ether glycol and polypropylene ether glycol and the preferred diisocyanates are 2,4- and 2,6-toluene diisocyanate, m-phenylene diisocyanate and 4,41-methylene bis(phenylisocyanate).  Suitable ketoximes are acetone oxime, methyl-ethyl-ketone oxime, methyl isobutyl ketone oxime, cyclohexanone oxime, acetophenone oxime, and benzophenone oxime.  The diamine may be p, p1-methylene dianiline, meta-phenylene diamine, 2,4-toluene diamine, ethylene diamine and 1,6 - hexamethylene diamine.  In general the prepolymer is chain extended by heating the composition from 70 DEG  C. to 150 DEG  C.  A diol having a M.W. of less than 350 may be added in addition to the polyether glycol in the preparation of the isocyanato terminated prepolymer.
Patent GB-1449635-A (GB)
Title: Ball nut assembly for lead screw
IPC: F16H25/22
Filed: 1973-10-05
Abstract: 1449635 Screw-and-nut mechanisms NIPKIMMI 5 Oct 1973 [6 Oct 1972] 46750/73 Heading F2Q Ball nuts 1, 2 are mounted on a lead screw 3 and are maintained in a pre-loaded condition by a force-fit between overlapping cylindrical surfaces 5. The force-fit may be loosened by supplying oil through a port 6 to a groove 7 in the nut 2. In a modification, nut 2 carries a collar 8 which is adapted to engage a reduced diameter portion of nut 1, Fig. 2.
Patent GB-1142777-A (GB)
Title: Doppler-frequency discriminator circuit
Inventor: MCLEOD FRANCIS DONALD
IPC: H03D3/08
Filed: 1967-10-13
Abstract: 1,142,777. Frequency discriminators. MENNEN-GREATBATCH ELECTRONICS Inc. (F. D. McLeod). 13 Oct., 1967, No. 46813/67. Heading H3A. A frequency discriminator for detecting Doppler-frequency shifts comprises a filter FS to which a carrier frequency signal and the Doppler-shifted signal are supplied, a detector stage DCD comprising two rectifiers 40 and 42 of opposite polarities, a D.C. blocking stage DCB which blocks the rectified carrier but passes the Doppler audio signals, and a subtracting stage DCS in which the two outputs are subtracted to give a signal which indicates the sign and magnitude of the Dopper shift. An amplifier stage AMP preferably precedes the subtraction stage DCS, and the latter may be constructed as shown to provide a root-meansquare output when there are several Doppler frequencies present in the input, e.g. when measuring the flow of a fluid. The input filter FS is preferably constructed as shown and tuned to the carrier frequency, thereby providing a phase shift of the Doppler component which is proportional to the frequency shift.
Patent GB-1477308-A (GB)
Title: Jig for use in connecting pipes with inspection and like  chambers
IPC: B25H7/00
Filed: 1974-05-10
Abstract: 1477308 Templates for marking off pipes HUNTER PLASTIC INDUSTRIES Ltd 10 May 1974 [12 Feb 1973] 46872/76 Divided out of 1477306 Heading B4X A jig 17 in the form of a flat plate having an arcuate axis of a sheet material, which may be synthetic plastics and may also be transparent, is used to indicate the line of cut required on a tubular arcuate connecting member, to connect the socket of an inspection chamber and a drainpipe. The jig 17 comprises transverse slots 19 spaced along the length of the plate corresponding to a range of angles which the arc of the plate subtends and an end part 18 adapted to be inserted into the socket of the inspection chamber. When the jig is inserted, the drainpipe end is lined up to one of the slots in the plate and then the jig is removed and placed over the connecting member which is then marked through the slot with the required line of cut for connection between socket and drainpipe.
Patent GB-1434283-A (GB)
Title: Gripper elements for sport shoes
IPC: A43C15/02
Filed: 1973-05-11
Abstract: 1434283 Boots etc A DASSLER 11 May 1973 [24 May 1972 (2)] 47126/75 Divided out of 1434282 Heading A3B A gripper element 63 for a sports shoe, particularly for use on plastics tracks, consists of a substantially circular plate like body 64 having an upturned peripheral edge 66 which is serrated to provide a plurality of radially extending edges 68. The body 64 is secured to the sole 61 by a threaded bolt 65 screwed into a threaded socket 62 embedded in the sole 61. The bolt 65 may have a conventional slotted head 70 or a spiked head 73 (not shown).
Patent GB-1500127-A (GB)
Title: Reactive matrices
IPC: G01N33/74
Filed: 1973-10-10
Abstract: 1500127 Test composite comprising metal substrate ABBOTT LABORATORIES 10 Jan 1975 [10 Oct 1973] 47202/73 Heading G1B [Also in Division C3] A water-insoluble composition or composite body for use in testing comprises a metal substrate the surface of which is coated with an intermediate polymer comprising a condensation product on an aminobenzoic acid and an aldehyde to which is coupled an organic compound having biological or chemical activity, the composition or composite body exhibiting the biological or chemical activity of or related to that of the unbound organic compound. The substrate may be metal in the form for example of powder, rods or bars or may be used as "magnetic plastic". The polymer layer forms a continuous adherent coating on the metal substrate and may be macroporous. Organic compounds exemplified are beta-D-glucosidase, and antibody to follicle stimulating hormone. There is general reference to use in testing of composites in which the organic compound is the compound to be assayed or a labelled version of the latter, or a labelled or unlabelled specific reagent for the compound to be assayed. Reference has been directed by the Comptroller to Specification 1403359.
Patent GB-1399296-A (GB)
Title: Polyazo dyestuffs
IPC: C09B62/28
Filed: 1972-10-13
Abstract: 1399296 Polyazo dyes BAYER AG 13 Oct 1972 [15 Oct 1971] 47363/72 Heading C4P New polyazo dyes which may be metallized are of formula wherein D is the radical of a diazo component X is H or a substituent, Y is OH or NH 2 , Ar is an optionally substituted p-phenylene or naphthylene radical, K is a sulphonaphthol residue linked in the 1-position to OH and in the 2- position to -N=N-, Z is a substituent, n is 1 or 2 and D or K may contain a further azo substituent are prepared by coupling a diazo compound with a 1-aminoaryl-pyrazole, further diazotizing and coupling with the sulphonaphthol. The dyes may be metallized at the final stage of preparation or at an intermediate stage with Cu, Ni, Cr or Co salts. The dyes may also contain fibre-reactive groups. They are used to colour cellulose fibres, paper, paper pulp, leather and particularly cotton in green and brown shades.
Patent GB-1202549-A (GB)
Title: Production of acrylonitrile copolymers
IPC: C08F28/00
Filed: 1967-10-17
Abstract: 1,202,549. Preparation of dyeable acrylonitrile copolymers. JAPAN EXLAN CO. Ltd. 17 Oct., 1967 [18 Oct., 1966], No. 47373/67. Heading C3P. Acrylonitrile copolymers having a marked affinity for basic dyestuffs are prepared by polymerizing, by means of a precipitation, emulsion or suspension method, a monomer mixture containing 80-99À9% by weight of acrylonitrile, 0À1-5% by weight of an ethylenically unsaturated sulphonic acid or a water-soluble metal or ammonium salt thereof, and 0-19À9% by weight of at least one other comonomer in an aqueous medium in the presence of an organic liquid which is a non-solvent for the resultant copolymer and for the sulphonic monomer but is a solvent for the acrylonitrile and any other monomer used, said liquid being free from ethylenic unsaturation. The sulphonic monomer may be allyl-, methallyl-, allyloxyethyl-, methallyloxyethyl-, allyloxypropyl-, allylthioethyl- or allylthiopropyl-sulphonic acid or a potassium, sodium or ammonium salt thereof. Optional comonomers specified are acrylate and methacrylate esters; acrylamide, methacrylamide and their N-substituted derivatives; acrylic, methacrylic and itaconic acids; methyl vinyl ketone, phenyl vinyl ketone and methyl isopropenyl ketone; vinyl formate, acetate, propionate, thiolacetate and benzoate; esters of maleic, fumaric, citraconic, mesaconic and aconitic acids; styrene and its alkyl-derivatives; allyl alcohol; vinyl and vinylidene chloride; vinylidene cyanide, methacrylonitrile and alphamethylene-glutaronitrile. Suitable as the organic liquid are aliphatic alcohols, aliphatic esters, and aliphatic or cycloaliphatic ketones. Polymerization can be effected batchwise or continuously and with initiators such as hydrogen peroxide, ammonium persulphate or redox combinations of persulphates (e.g. potassium persulphate) or sodium chlorate with sodium bisulphite or sodium sulphite or of hydrogen peroxide with ferrous sulphate. The pH is preferably from 1 to 7. The copolymers obtained can be formed into articles such as filaments, films, sheets or tubes.
Patent GB-1328358-A (GB)
Title: Electrooptic light beam modulators
IPC: G02F1/29
Filed: 1970-10-06
Abstract: 1328358 Modulating light HONEYWELL Inc 6 Oct 1970 [17 Dec 1969] 47496/70 Heading H4F To permit wide band modulation of a light beam by applying an electric field to a piezoelectric electro-optic crystal, a detrimental elasto-optic effect caused by acoustic vibrations induced in the crystal and particularly effective at crystal resonant frequencies is reduced in effectiveness by positioning acoustic damping means having substantially the same acoustic impedance as the crystal contiguous at least one face of the crystal so as to reduce the amplitude of the acoustic vibrations and/or to reduce the resonant frequency by increasing the acoustic path length. Thus in Fig. 4, a light deflector comprises four KD*P crystals 51a-51d, and an electric field is applied along the C axis to vary the refractive indices thereof. A glass prism 58 is provided with two faces cut at the Brewster angle # B , so that whereas a light beam is transmitted to and from a reflector 62, the vibration along the X axis is reflected towards absorbers 59a, 59b Fig. 4a (not shown). A similar arrangement absorbs Y-vibrations, and C-vibrations are not induced in this embodiment. In Figs. 2 and 3, a deflector comprises three LiNbO 3  prisms 31a-31c, forming a parallelepiped. Electrodes 34-36, of copper, which is well matched acoustically to LiNbO 3 , apply fields across respective prisms in the directions indicated by arrows 40a-40c, and are shaped so that C-vibrations are damped by multiple reflections therewithin. Acoustic absorbing strips 38 reduce the X-vibrations, and the Y- vibrations, along the path of the light beam, may be reduced using a Brewster angle technique as described for Fig. 4. In a further light deflector, Fig. 1, comprising identical LiNbO 3  prisms 11 and 12, wherein electrodes apply a field in the C direction and light is transmitted along the Y axis, LiNbO 3  prisms 16, 17 reflect X-vibrations to absorbers 21, 25. Preferably the reflecting faces e.g. 24 make an angle greater than 45 degrees with the ends of the prisms 11, 12.
Patent GB-1078189-A (GB)
Title: Convertible bed
IPC: A47C17/175
Filed: 1965-11-10
Abstract: 1,078,189. Bed-settees. F. D. G. SIRVENT. Nov. 10, 1965, No. 47641/65. Heading A4J. A structure adaptable to form either a bed or a sofa comprises a mattress frame 4 pivotably mounted at each end on an end board 1 by means of a rod 7. The frame 4 is supported along one side by vertical legs and each end of the frame is hinged near the opposite side. The hinged portion of the frame is supported at each end by a rod 2 connecting frame 4 to end boards 1. The position of frame 4 is adjustable so that the hinged portion can either be horizontal or vertical. A key 6 controls the position of rod 7.
Patent GB-1009574-A (GB)
Title: Process for the separation of hydrogen chloride gas from a gas mixture obtained in the catalytic oxidation of hydrogen chloride gas with a molecular oxygen-containing gas
IPC: C01B7/00
Filed: 1963-12-03
Abstract: <PICT:1009574/C1/1> HCl gas may be separated from a gas mixture obtained by the catalytic oxidation of HCl gas with a molecular oxygen-containing gas, which mixture contains water vapour, by (a) cooling the gases in 2, (b) washing with hydrochloric acid in 5, (c) separating at least a portion of the HCl from (b) into HCl gas and hydrochloric acid azeotrope in 14, (d) washing the gases with water in 5 to remove more HCl, (e) condensing water vapour from the gases in 26 and using it as a washing liquid in (d); conditions being such that the quantities of water vapour drawn off from (e) and the HCl gas from (c) are together equal to the quantity of water vapour in the original gases; and a mixture of hydrochloric acid azeotrope from (c) and dil HCl (d) may be used for washing in (b).  The cooling is to 40-150 DEG  C. and may be effected by quenching with HCl.  The HCl obtained from (b) may be divided into two portions, one being used for quenching in (a), the other being separated into HCl gas and azeotrope.  The condensation (e) removes a major part of the water vapour. Further condensation may be effected by passing the gas mixture up a tower in which cooling water is sprayed.  The starting material may contain organic impurities. The oxygen-containing gas may be air.  Level AB is kept constant by a level controller which operates a temperature controller which in turn operates a control valve which adjusts the relative amounts of HCl flowing along lines 21 and 24. Specifications 908,022, 991,081 and 1,005,974 are referred to.
Patent GB-1118300-A (GB)
Title: Quinoline derivatives and a process for the preparation thereof
Inventor: GODFREY JOHN CARL
IPC: B65D25/14
Filed: 1965-11-10
Abstract: Novel compounds of formula <FORM:1118300/C2/1> where X is oxygen or sulphur, R1 is hydrogen or lower alkyl, R2 is lower alkyl, and R3, R4, R5 and R6 are each a hydrogen, chlorine, bromine, iodine, or fluorine, or a trifluoromethyl, lower alkyl, lower alkoxy, lower alkylthio, nitro, carboalkoxy, lower alkanoyl, lower alkanoyloxy, lower alkanoylamino, di - lower - alkylamino, methyl-sulphonyl, phenyl or phenoxy group, the term "lower" meaning groups having up to 10 carbon atoms, and non-toxic, pharmaceutically acceptable acid-addition salts thereof, are prepared by reacting an appropriately substituted 2-quinoline-methanol in an inert organic solvent at a temperature of 0-150 DEG  C. with at least about one equivalent part of an acylating agent having the formula <FORM:1118300/C2/2> wherein n is 0 or 1, and Z is a halogen atom, or an alkoxy or phenoxy group, and when Z is an alkoxy or phenoxy group in the presence of an acid or a metal alkoxide as catalyst, the acylating agent, if desired, being formed in situ from a functional equivalent thereof.  2 - Quinolinemethanol is obtained by reducing quinoline-2-aldehyde.
Patent GB-1058039-A (GB)
Title: Improvements in or relating to circuit arrangements
IPC: H03G11/02
Filed: 1964-11-25
Abstract: 1,058,039. Transistor switching circuits; automatic frequency control systems. ALBISWERK ZURICH A.G. Nov. 25, 1964 [Dec. 20, 1963], No. 47848/64. Headings H3A and H3T. An electronic switch is operated by the collector current of a control transistor to pass a control signal only when its amplitude lies between predetermined limits. This is effected by applying the control signal to the emitter and base of the control transistor T1 (Fig. 2) via separate potential dividers R2/R3 and R5/R6, the tapping points being provided with diode amplitude limiters G1, G2. If the input voltage E exceeds a predetermined value in a positive or negative direction one or other of the diodes will conduct to prevent any further change of potential on the corresponding electrode, and T1 will be cut off by the continued change on the other electrode. The switch transistor T2 will then conduct and short the output terminal A to earth. Values of E between these limits are passed to A via resistor R1. In a modification (Fig. 3, not shown) the potentialdivider tappings are connected to the bases of two emitter-coupled transistors, the collector current of one of which operates the switch transistor. To avoid short-circuiting the output line, the arrangement of Fig. 2 can be modified (Fig. 4, not shown) by joining the collector of T2 directly to the input terminal and the emitter directly to point A. The polarities of the diodes G1, G2 are reversed so that T2 conducts during the normal range of the input signal and is open-circuited when the signal goes outside the limits. Klystron frequency control.- The input signal referred to above can be the control signal for regulating the frequency of a klystron oscillator to agree with a reference frequency (Fig. 1, not shown). The reflector voltage of the klystron (Fig. 5, not shown) is supplied with voltage from a rectified A.C. source through R12 and R11, and also with a control voltage from E via the switch transistor T3. If E varies within the limits for which the klystron operates efficiently without returning of the cavity, T3 is conducting. Outside these limits the switch T3 shorts the bottom of R11 to earth. The klystron is then tuned manually by altering the tap on R11, which is ganged with the mechanical adjustment of the cavity. Alternatively, the switch transistor T3 can bring in a follow-up system to adjust R11 and the cavity. Adjusting tuned circuits.-In Fig. 6 (not shown a tuned circuit C5, L (e.g. in a radio receiver) is shunted by a variable-capacitance diode C6 for automatic frequency control. The signal E controls the voltage across C6 within predetermined limits as above.
Patent GB-1183908-A (GB)
Title: Improvements in or relating to Storage Arrangements
IPC: G06F11/10
Filed: 1968-10-11
Abstract: 1,183,908. Magnetic storage arrangements. SIEMENS A.G. 11 Oct., 1968 [13 Oct., 1967], No. 48257/68. Heading H3B. [Also in Division G4] Data storage system having a plurality of storage elements each provided with a write-in and read-out line has a comparator which, during storing of information in one of the elements, compares the signals occurring on the associated write-in and read-out lines, and, if the compared signals do not correspond, issues a fault signal. A store K including a plurality of magnetic cores has write in lines connected to a register Reg 1 and read-out lines connected via a switch U to either a register Reg 2 or to Reg 1. A comparator V is connected to both registers. During writing operations a word is stored in Reg 1 and applied to the cores. During switching operations signals are received on the readout lines, amplified and applied to Reg 2. Comparison between the two registers allows a fault to be immediately detected. During destructive reading operations the word on the read-out lines is applied to Reg 1 for rewriting, wherein faults are detected as explained above.
Patent GB-482670-A (GB)
Abstract: 482,670. Attaching buckles to belts &c. NEWMAN, E. A. H. Oct. 3, 1936, No. 26886. [Class 43] A buckle of the type having an approximately rectangular frame with a central bar on which is pivoted a central prong for engaging the belt is attached to a belt &c. by a pin I passed through a loop 7 of the belt and mounted on lugs 2, 3 extending lengthwise of the buckle frame, so as to be readily movable to a position in which it can be detached from the belt, the pin normally being parallel to the end bars of the frame. The pin 1 may be screw-threaded and formed with a head 4 so that it can be slipped through holes in the lugs and fixed by a nut 5 or be slipped through a hole in one lug and screwed into a tapped hole in the other lug. Alternatively, a pin hinged to one lug and engaging a clip on the other lug may be used. Specification 482,669 is referred to.
Patent GB-1105458-A (GB)
Title: Pawl mechanism
Inventor: MORRITT KENNETH PATRICK
IPC: A01K89/01
Filed: 1963-12-09
Abstract: 1,105,458. Fishing reels. MORRITT Ltd. 9 Nov., 1964 [9 Dec., 1963], No. 48496/63. Heading A1A. [Also in Division F2] In a pawl mechanism suitable for incorporation in fishing reels, a toothed ratchet wheel 3 (see drawing accompanying the Provisional Specification) which is part of a crown wheel engaged with a rotatable flier drum of the fishing reel 1 is adapted in the position illustrated to be engaged by a pawl nose 9 of a spring- urged pawl arm 5 movable into and out of engagement with the teeth of the ratchet wheel by actuation of a setting arm 21 which is adapted to bear against the pawl arm 5, the other end of the pawl arm 5 being provided with a check head 13 having a first tooth 15 and a second tooth 18 adapted to engage the ratchet wheel 3 when the setting arm 21 is moved to the position 22<SP>11</SP> such that the check head 13 acts as a watch escapement to offer considerable resistance to rotation of the ratchet wheel 3 in the direction of the arrow B and offer a much lower resistance when the ratchet wheel 3 rotates in the direction of the arrow A. When the setting arm 21 is moved to its position 22<SP>1</SP>, a finger 24 engages a recess 19 in the pawl arm 5 so that both the pawl nose and the check head are kept clear of the ratchet wheel. An alternative embodiment is disclosed in Fig. 3 of the drawings accompanying the Complete Specification wherein the check head is in the form of a check nose 42, pivotally mounted on a support arm 40 and a pawl nose 50 is pivotally mounted at 39 separately from the support arm. Actuation of a cam plate 35 by a control arm 37 determines which ratchet mechanism is brought into engagement with the ratchet wheel 30. The pressure of the spring 44 on the check nose 42 is adjusted by a screw means 45. Reference has been directed by the Comptroller to Specification 1,032,622.