baber/WOPTO huggingface dataset:
Patent GB-1276500-A (GB)
Title: Improvements relating to the production of circular labels
Inventor: HUTTON HENRY JAMES
IPC: B31D1/02
Filed: 1968-08-21
Abstract: 1276500 Cutting apparatus EMI Ltd 21 Aug 1969 [21 Aug 1968] 39970/68 Heading B4B [Also in Division B8] A machine for making circular labels e.g. for gramophone records, comprises a holder 8 for receiving a stack of sheets of non-circular form, a clamping plate 36 for holding the sheets while a cutter 15 is rotated to form the circular periphery of the labels. The cutter 15 is mounted on a carrier 16 secured to a rotatable shaft 17 which is supported in a bearing 33 connected to a plate 30; the plate is guided on rods 2, 3, 25 secured to a base plate 1 and a plate 31. The shaft 17 is rotated by a motor 21 via a belt-and-pulley drive 19, 22, 23, the pulley 19 being splined to the end 18 of the shaft 17 in order to permit reciprocating movement of the latter relative to the pulley. The plate 30 is connected by rods 29 to a plate 28 which is connected to the ram of an hydraulic or pneumatic cylinder 27. The holder 8 is slidably mounted against the action of springs 13 on a pillar 6 which is fixed to a table 4 pivotable between loading, working and unloading stations. The clamping plate 36 is mounted on a shaft 37 and loaded by springs 39; alternatively the plate may be lodaed by an air cylinder. A central hole is bored in the stack of labels simultaneously with the cutting operation by means of a hollow drill 42 which is rotated by an air motor 43 and moved axially by means of an air cylinder 44.
Patent GB-1119556-A (GB)
Title: Electrohydraulic actuator
IPC: F15B9/09
Filed: 1965-09-20
Abstract: 1,119,556. Electric correspondence control systems. NORTH AMERICAN AVIATION, Inc. Sept. 20, 1965 [Sept. 28, 1964], No.40032/65. Heading G1N. [Also in Division G3] In an open loop control system Fig. 1, an input signal at 10 is fed through three parallel channels 12,13,14 to energize a motor 16 driving an output member 11 whose displacement is measured by three separate pick-offs 18,19,20 each connected in negative feed back relation to one of the channels 12,13,14, whereby the system continues to operate satisfactorily even when one or two of the channels become faulty. As described, the motor 16 is hydraulic and the input and pick-off signals are electrical, combined at amplifier 21, to control electro-hydraulic valves 15, whose flow outputs are combined at 17 to drive motor 16. The pickoffs 18,19,20 are differential transformers. Mechanical details of the valves, manifolds and motor are given.
Patent GB-1026722-A (GB)
Title: Improvements in positive electrodes for an electrical primary cell
IPC: H01M4/06
Filed: 1962-10-24
Abstract: 1,026,722. Primary cells. VARTA PETRIXUNION G.m.b.H. Oct. 24, 1962 [March 17, 1962], No. 40196/62. Heading H1B. The positive electrode consists of a single layer of a self-supporting mixture of a depolarizer and an electrical conducting material all cohered together with a binder. The electrode can be made very thin (0À01 mm.-1À0 mm.) and may be wound. Pyrolusite, carbon and synthetic plastics are the preferred ingredients.
Patent GB-1327500-A (GB)
Title: High-power apparatus for the storage and liberation of energy by means of a transformer
IPC: H01F36/00
Filed: 1971-08-26
Abstract: 1327500 Pulse generating COMPAGNIE GENERALE D'ELECTRICITE 26 Aug 1971 [7 Sept 1970] 40197/71 Heading H3B [Also in Division H2] Energy stored in a superconducting coil is extracted in a pulse by a non superconducting winding which forms a transformer with the coil. In the Fig. a superconducting coil 2 is connected to a voltage source 11, 12 by switch 13. The coil has a superconducting switch 5 across its terminals, and also has a transformer winding 8 connected to a load 9. To introduce a current into the coil, switch 13 is closed while switch 5 is opened. This current is stored by closing switch 5 and opening switch 13. To liberate this current the coil is rendered normally conducting while switch 5 remains superconducting; the peak power so released may be 10 Gw. The coil is a large diameter solenoid of short length, made of Nb with 40% Ti sheathed in cupro-nickel. It may be controlled by magnetic or thermal device 3, 4. The superconducting switch 5 may be a small elongate solenoid of a similar alloy, with a copper control winding 6, 7. The load may be a laser flashlamp or plasma discharge.
Patent GB-1071474-A (GB)
Title: Improvements relating to fluid-pressure motors
Inventor: ROY ROBERT
IPC: B64C25/50
Filed: 1964-10-02
Abstract: 1,071,474. Steering aricraft nosewheels. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Sept. 30, 1965 [Oct. 2, 1964 No. 40259/64. Heading B7H. [Also in Divisions B8, F1 and F2] The lower part 10a of the tubular leg 10 of an aircraft nosewheel undercarriage is rotated by means of a plurality of piston and cylinder units 15, 18 having cam followers 17 which act on a cam track 11 of multi-lobe waveform formed by a pair of cam rings 12, 13 secured to part 10a. The cylinders are reciprocated over fixed pistons 18 by the supply of pressure fluid alternately to cylinder spaces 24, 25 under the control of a rotary valve 32 driven by means of a chain 46 and sprockets 45 and 47 on the valve and part 10a, respectively. The pistons 18 are fixed to a bracket 16 secured to the leg 18 and the cylinders 15 reciprocate in slides 151, Fig. 5 (not shown), depending from bracket 16, recirculating ball bearings 152 being provided between the cylinders and slides. The units 15, 18 are individually removable from the assembly. The piston and cylinders units may be single-acting, some units urging their cam followers against cam ring 12 and the other units urging their followers against ring 13.
Patent GB-953359-A (GB)
Title: Transistor oscillator
Inventor: LAX LADISLAV
IPC: H03K3/30
Filed: 1960-11-23
Abstract: 953,359. Transistor oscillator circuits. PYE Ltd. Nov. 15, 1961 [Nov. 23, 1960], No. 40280/60. Heading H3T. The recurrence frequency of a saturable core transistor blocking oscillator is varied by altering the value of a direct current passing through a control winding on the core. As described, the core has three parallel limbs with primary winding P and secondary windings on the middle limb and control windings W1, W2 on the outer limbs, the current in the control limbs determining the point at which the core saturates. The control current may be varied by connecting the windings in series with a variable resistor R3 across the power supply. Alternatively the current may be varied automatically.
Patent GB-1008983-A (GB)
Title: Girders constituting or supporting rails
Inventor: GUEST JOSEPH
IPC: B66C6/00
Filed: 1964-10-03
Abstract: 1,008,983. Hollow metal girder. JOHN BARNSLEY & SONS Ltd. Oct. 3, 1964, No. 40374/64. Heading E1K. [Also in Division B7] A metal girder constituting or supporting a rail, comprises channel members 10 connected by plates 11, 15, Fig. 2, and has longitutinal spaced partitions 13 welded to plates 11, 15 and members 10. Each partition has a T-shaped aperture to receive part of an I-section rail 14 which is welded to the partitions and to plate 15. In Fig. 6, the girder comprising members 20, plates 21 and partitions 23, supports a rail 24; two such girders mounted side-by-side are used in an elevated railway system.
Patent GB-1020064-A (GB)
Title: Vulcanisable olefin copolymers
IPC: C08F210/00
Filed: 1963-10-14
Abstract: Substantially linear, amorphous, vulcanizable, high molecular weight copolymers of aliphatic a -olefins with a hydrocarbon containing a cycloheptatriene ring, which copolymers consist of unsaturated macromolecules containing monomeric units of each of the monomers, are made by reacting the monomers in the presence of a Ziegler type catalyst in an inert solvent. Many suitable cycloheptatriene ring compounds and catalyst components are specified.  In the examples, 1,3,5-cycloheptatriene is copolymerized in n-heptane solution with ethylene, and propylene and/or butene-1, in the presence of a catalyst comprising vanadium tetrachloride or vanadium triacetylacetonate with aluminium diethyl monochloride, aluminium diisobutyl monochloride, aluminium trihexyl or beryllium diethyl. The polymerization is terminated with methanolic phenyl b -naphthylamine.  The product is purified by washing with dilute hydrochloric acid and water, precipitated with acetone and then vulcanized in the conventional manner. Complexing agents such as ethers, tertiary amines and tertiary phosphines may be added to the catalyst.  The vulcanized copolymer may be formed into shaped articles, pipes, inner tubes and elastic threads.
Patent GB-1187723-A (GB)
Title: Improvements relating to the Implating of Posts
IPC: E04H12/22
Filed: 1968-08-26
Abstract: 1,187,723. Mounting posts in the ground; boring earth &c. TREFILERIES LEON BEKAERT P.V.B.A. 26 Aug., 1968 [29 Aug., 1967], No. 40755/68. Headings E1B and E1F. A post socket comprises an externally screw threaded sleeve 1 which is screwed into the ground using a removable toothed drill 9-10. The sleeve has a pair of T-slots to provide a bayonet connection with the drill and then the post. The post and sleeve may be metal or plastics and the drill 9 may have tommy bar holes 13.
Patent GB-900968-A (GB)
Title: A process for the production of carbo-di-imides
IPC: C07C275/70
Filed: 1960-11-29
Abstract: Carbo-di-imides of the formula R1N=C=NR2, in which R1 and R2 denote identical or different aliphatic, cycloaliphatic, aromatic or araliphatic radicals optionally substituted by chlorine, bromine, iodine, alkoxy groups, phenoxy groups or nitro groups, are prepared by splitting off hydrogen chloride from a chloroformic acid amidine hydrochloride of the formula:- <FORM:0900968/IV (b)/1> by treatment with water and/or an acid-binding agent.  Suitable acid-binding agents are alkali or alkaline earth hydroxides, carbonates or bicarbonates and tertiary amines.  Chloroformic acid amidine hydrochlorides of the above general formula are obtained by reacting appropriate N-R1, N1-R2-ureas or thioureas with phosgene. Specification 794,689 is referred to
Patent GB-1520466-A (GB)
Title: Photo sensitive image-forming materials
IPC: C08L77/00
Filed: 1975-10-07
Abstract: 1520466 Photo-sensitive azide materials FUJI PHOTO FILM CO Ltd 7 Oct 1975 [9 Oct 1974] 41109/75 Heading G2C A positive working material has a photosensitive layer rendered alkali soluble on exposure and comprising (i) a polyamide and (ii) an azide having at least one alkali-solubilizing group e.g. SO 2 H, CO 2 H, OH, and being present in an amount of 3 to 30 parts by weight per 100 parts of the polyamide. Arylazides are preferred e.g. 4-azidobenzene carboxylic or sulphonic acid, 4-azidophenol, 4, 4'-diazidostilbene-2, 2', disulphonic acid; 4, 4'- diazidobenzalacetophenone-2-sulphonic acid, 4, 4'-diazidostilbene-α-carboxylic acid, 1-(4-azido- 2-hydroxyphenyl)-5- (4-azido-2-sulphophenyl) - pentane-3-oxo-1, 4 diene and 4-azidobenzalacetophenone-2-sulphonic acid. The polyamides are preferably nylons e.g. homo- or co-polymers of caprolactam, or of the hexamethylene diamine salt of adipic or sebacic acid. The layer can also contain dyes and fillers, may be coated on a plastics or metal support e.g. Al or Al alloy, and may be overcoated with a further photosensitive layer containing an o-quinone diazide which is also rendered alkali soluble on exposure. At least one of the two layers may contain a silane coupling agent to improve adhesion e.g. γ glycidoxypropyltrimethoxysilane or #- (3, 4-epoxycyclohexyl) -ethyl-trimethoxysilane. The alkali developer which removes the exposed areas is an aqueous solution of KOH; NaOH; sodium or potassium silicate or carbonate; or tert-sodium or tert-potassium phosphate. The developer may also contain an organic solvent e.g. o-propyl alcohol and a wetting agent.
Patent GB-1005991-A (GB)
Title: Floating roof liquid storage tank
IPC: B65D88/34
Filed: 1963-10-17
Abstract: 1,005,991. Tanks with floating roofs. J. H. WIGGINS. Oct. 17, 1963 [Nov. 1, 1962], No. 41120/63. Heading E1T. A tank of the floating roof type is provided with an anti-rotational device for the roof consisting of a cable 97, Fig. 3, connected to an anchorage 70 and a tensioning device 80 mounted on an anchorage 60. The cable is made of stainless steel and passes through a sealed tube 96 in the roof and through a cable guiding mechanism 110 which may be modified as described with reference to Figs. 8 - - 12 (not shown). The tensioning device, Fig. 4, consists of two rigidly inter-connected pistons 85, 90 which are vertically-adjustably and non-rotatably mounted in a cylinder 82, a spring-loaded intermediate piston 92 being constrained for likewise movement between the pistons 85, 90. Specification 920,907 is referred to.
Patent GB-1521544-A (GB)
Title: Pitch-change apparatus for a ducted thrust fan
IPC: F02K3/04
Filed: 1975-10-08
Abstract: 1521544 Axial flow fans; gas turbine by-pass fan engines UNITED TECHNOLOGIES CORP 8 Oct 1975 [9 Oct 1974] 41223/75 Headings F1C and F1J [Also in Division F2] A camming ring 52 is rotatable on the hub of a ducted thrust fan to vary the pitch of fan blades 24 via horns 40 carrying rollers 44 which engage helical grooves 56 in the ring 52, rotation being effected by a harmonic drive 62 comprising a wave generator 64 and a flex spline 68 which engages internal teeth on an end cover 60 integral with ring 52, each rotation of wave generator 64 causing slight indexing of ring 52 relative to the hub housing 30. The horns are oriented each relative to its respective blade so that they all lie in a plane substantially perpendicular to the hub axis when the blades are in the feathered pitch position. The camming ring has a spherical surface of radius R2 the centre of which lies at the intersection between the blade axes 34 and the hub axis 20. Preferably, the ratio R 1 /R 2  where R 1  is the effective horn radius, should lie between 0À775 and 2 for minimum design weight to be achieved.
Patent GB-1369552-A (GB)
Title: Buckles
IPC: A44B11/25
Filed: 1973-08-23
Abstract: 1369552 Buckles HOWARD WALL Ltd 23 Aug 1973 [7 Sept 1972] 41534/72 Heading E2A A buckle for a safety belt or harness comprises an outer casing 21, a cover 28, a pressbutton 30, a bulkhead 31, a pair of carriers 23, a latch 51 which engages one or more apertures 43 in a plate 72 to which the belt or harness, or one part 72 of it, is attached, and a lever 61 which moves the latch from the engaging to the releasing position; the latch and the lever are pivoted to the carriers and the carriers are integral with but spaced from the walls of the casing 21. The bulkhead is integral with the cover. As shown, the sides of the casing 21, Fig. 6, are bent over to form flanges 22, the latter being bent down to form the carriers. The apertures 24, 25 receive the pivots of the latch and lever and the cover 28 has hook members 37 for engagement in apertures 26 and to secure the cover to the casing. The press-button is depressed against the bias of a spring 49 engaging the edge 52 of the latch 51 and the cross-bar 62 of the lever 61, the latter having ends 59 which engage under hooked projections 57 of the latch. A spring 67 is arranged to eject the plate 72 upon depression of the press-button. One end of the belt may be attached to the casing by a bar 70, the ends of which engage in sliders 69, or, the casing is secured to the floor of a vehicle by means of a bracket or cable.
Patent GB-1066265-A (GB)
Title: Improvements in and relating to electrical storage and measurement arrangements
Inventor: SCHUBERT GERD
IPC: G01R19/00
Filed: 1964-10-12
Abstract: 1,066,265. Electric measurements; electric meters. VAKUTRONIK VEB. Oct. 12, 1964, No.41565/64. Headings G1Q and G1U. [Also in Division H2] A test probe contains a capacitor 1 which is charged to a voltage it is desired to measure, and the voltage across the capacitor is measured later. The probe, whose capacitor has a time constant of three months, can be used to measure voltages from a base voltage which is not earth potential with an earthed instrument, and avoids the necessity of an operator watching both the probe and an instrument simultaneously.
Patent GB-957829-A (GB)
Title: Fluorinated thiophosphoric acid esters and their preparation
IPC: C07F9/165
Filed: 1962-11-02
Abstract: The invention comprises compounds of formula: <FORM:0957829/C2/1> where R, R1 and R2 are the same or different linear or branched, saturated or unsaturated C1-4 aliphatic hydrocarbon radicals, at least one of which contains one or more fluorine atoms, R3 is hydrogen or phenyl and X is oxygen or sulphur.  R and R1 are preferably CH3, CH2CH2F or C2H5 and R2 is preferably CH3, C2H5, CH2CF2CHF2, C(CH3)2C­CH or CH2CH2F.  They are made by reacting: <FORM:0957829/C2/2> with <FORM:0957829/C2/3> where Me is alkali metal and Hal is chlorine or bromine.  A solvent may be used.  The products are parasiticides (see Division A5).ALSO:Pesticidal compositions comprise fluorine-containing thiophosphoric esters of formula <FORM:0957829/A5-A6/1> where R, R1 and R2 are the same or different linear or branched, saturated or unsaturated C1-4 aliphatic hydrocarbon radicals, at least one of which contains one or more fluorine atoms, R3 is hydrogen or phenyl and X is oxygen or sulphur. R and R1 are preferably CH3, CH2CH2F or C2H5 and R2 is preferably CH3, C2H5, CH2CF2CHF2, C(CH3)2C­CH or CH2CH2F.  (For preparation see Division C2.)  Solutions, emulsions, wettable powders and powders are mentioned.  Other active substances may be present.
Patent GB-1235244-A (GB)
Title: Shears for trimming or dividing metal plates or the like
IPC: B23D15/08
Filed: 1969-08-20
Abstract: 1,235,244. Shearing. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. 20 Aug., 1969 [21 Aug., 1968], No. 41591/69. Heading B3W. In rolling cut shears, the upper movable blade 11 has an arcuate edge 10 and is mounted in a support 7 driven by eccentric shafts 2, 3, the blade being prevented from moving longitudinally of the stationary lower blade 22 by a guide block 12 slidable between vertical guide faces 13 on the shear housing 1. The guide faces 13 are transverse to the cutting plane and the block is mounted on a pivot 9 the central axis of which extends transversely of the blade 11 through the cutting edge 10 at the midpoint thereof. Hold down rollers 14, 15 are mounted on blocks 16, 17 themselves mounted on plungers 18, 19 biased resiliently downwards. Since the blade 11 is reciprocated at a few degrees to the vertical the rollers are slightly conical. Scrap shear blades 23, 24 are associated with blades 11 and 22.
Patent GB-903954-A (GB)
Title: A process for producing ª--(2-carboxy-indolyl-(3))-ª--aminopropionic acid
IPC: C07D403/06
Filed: 1959-11-25
Abstract: b  - (2-Carboxy-indolyl-(3))-a -aminopropionic acid is prepared by reacting 21,31-indo-3,4-pyrone-(2)-carboxylic acid-(6) with aqueous caustic alkali to form b -(2-carboxy-indolyl-(3))-pyruvic acid, and treating this intermediate product with ammonia, followed by hydrogenation of the reaction mixture. p 21,31-Indo-3,4-pyrone-(2)-carboxylic acid-(6) is prepared by subjecting the phenylhydrazone of a -ketoglutaric acid to a Fischer indole synthesis in alcohol to give ethyl (2-carbethoxy-indolyl-(3)) acetate, reacting the latter with diethyl oxalate to form ethyl b -(2-carbethoxy-indolyl-(3))-ethoxalyl-acetate, and heating this latter compound in acetic acid in the presence of para-toluenesulphonic acid.
Patent GB-1446974-A (GB)
Title: Perfuming and flavouring compositions
IPC: A23L27/20
Filed: 1974-09-25
Abstract: 1446974 Flavourings FIRMENICH SA 25 Sept 1974 [25 Sept 1973] 41776/74 Headings A2B and A2C [Also in Divisions A5 and C2] A composition comprises a food stuff, a beverage, or a tobacco product having added thereto at least one compound of the formula:- wherein R<SP>1</SP> to R<SP>5</SP> may be the same or different and each represents H or an alkyl group; and X represents a group of the formula:- wherein R<SP>6</SP> to R<SP>9</SP> may be the same or different and each represents H or an alkyl group subject to the proviso that, when X represents a group of formula (B) in which R<SP>7</SP> represents a methyl group and R<SP>6</SP>, R<SP>8</SP> and R<SP>9</SP>, represent H, or when X represents a group of formula (B) in which R<SP>8</SP> represents a methyl group and R<SP>6</SP>, R<SP>7</SP> and R<SP>9</SP> represent H, at least one of the symbols R<SP>1</SP> to R<SP>5</SP> represents a methyl group.
Patent GB-1246642-A (GB)
Title: Signal correlation apparatus
Inventor: BLITZ DANIEL
IPC: G01S13/64
Filed: 1968-09-03
Abstract: 1,246,642. Selective signalling. SANDERS ASSOCIATES Inc. 3 Sept., 1968, No. 41933/68. Heading G4H. [Also in Division H4] In a system for identifying an unknown signal which is known to be one of a set of signals characterized, e.g. by their frequencies or by their patterns of pulses, the unknown signal is amplified and limited and shifted, by relatively high frequency clock-pulses, along a row of a core matrix-which then stores an " image " of the signal-the row is then read-out to a plurality of " correlation networks " each of which comprises an array of resistors connected in various combinations to the column output lines in such a way that each corresponds to one of the set of known signals, and in operation the correlation network that produces the highest output identifies the unknown signal. As described a plurality of unknown signals, Fig. 2, are read into the rows of a core matrix, which are then read out, sequentially, row-by-row, to the correlation networks of which two only are shown, namely two capable of identifying a 4 kc/s. and a 5 kc/s. signal, and the figure also shows, at the bottom, the images that 4 kc/s. and 5 kc/s. signals produce. The correlation networks shown are designed on the assumption that the signals to be recognized are read-out to the correlation networks " in phase " with the first column. In practice this will not be so and it would be necessary to have a group of correlation networks for each signal to be recognized. According to the Specification a group of three networks 60 degrees out of phase with each other, will, if their outputs are commoned, produce outputs which are at worst 86% of the output that would be produced by in phase signals with an in phase correlation network.
Patent GB-1121533-A (GB)
Title: A washing machine having a timing control device
IPC: G05B19/07
Filed: 1965-10-04
Abstract: A motor-driven switching mechanism for programmed switching of a washing machine is driven by pulses from an electromechanical pulse generator through blocking means which suppress the first and one or more consecutive pulses thereby to lengthen the available time delay. The blocking means is controlled by the first pulse and contains storage means for building up an electric or magnetic control quantity (e.g. voltage, charge or flux) so that the pulses are passed on only when the control quantity exceeds a predetermined level. Thus by using a capacitor to generate a sawtooth voltage on which the pulses are superimposed the switching occurs when the combined level of sawtooth and pulse exceeds a threshold.  Irregularities in the linearity or frequency of the sawtooth waveform do not then introduce errors of timing.  The time-delay before switching can be altered by varying the sawtooth frequency.  Instead of generating a sawtooth voltage, the pulses can be integrated by a capacitor or magnetic pulses can be superimposed on a magnetic sawtooth waveform.