baber/WOPTO huggingface dataset:
Patent GB-965949-A (GB)
Title: Improvements in or relating to electrical amplifying units and to methods of making the same
IPC: H03F15/00
Filed: 1962-04-06
Abstract: 965,949. Hallplate heads. SIEMENSSCHUCKERTWERKE A.G. April 6, 1962 [April 8, 1961], No. 13423/62. Heading G5R [Also in Divisions H1 and H3] In an electrical amplifying unit, especially for use in reading magnetically recorded signals, semi-conductor material is so disposed in layer form on a base-plate and so doped, that a Hall plate and two tunnel diodes are formed, and conductive material is disposed on the base-plate to form conductors including two Hall electrodes, by way of which the tunnel diodes are connected to the Hall plate. As shown, Fig. 1, InSb is applied by vapour coating to a ceramic base-plate 1 and superfluous InSb is etched away, leaving a Hall generator 2, semi-conductor layers 7, 9, which are formed into tunnel diodes by having In pellets alloyed at 8, 10, and semi-conductor strips 13, 14, 15 which serve as ohmic resistances. Conductive areas 3, 4, 5, 6, 11, 12, 16 of e.g. Cu, are then applied by electrodeposition. Semi-conductor material other than InSb may be used, and different material may be used for the Hall plate and the tunnel diodes. In use, Fig. 2, a control D.C. is applied to the Hall plate between electrodes 3, 16, and the output is taken from electrodes 11, 12. It is shown in the specification that the voltage amplification SU A /SU H  = 2. R 13 /R H , where U A  = output voltage; U H  = Hall voltage; R 13  = resistance of strip 13; R H  = internal resistance of the Hall generator.
Patent GB-681397-A (GB)
Title: Improvements in diaphragm pumps for use as low pressure air or gas compressors
Inventor: HAERLE HALAM RALPH
IPC: F04B39/16
Filed: 1950-05-30
Abstract: 681,397. Compressors. HYMATIC ENGINEERING CO. May 22, 1951 [May 30, 1950], No. 13451/50. Class 8 (i). A gas compressor comprises a diaphragm a, actuated by a crank pin m in a crank case b, whose periphery is clamped between the crank case and a head d containing a delivery valve body c having holes c extending therethrough and communicating through radial ports f with a circumferential groove in which is mounted under tension a resilient ring g forming the delivery valve, the gas being supplied through the crank case and through ports n in the diaphragm which are controlled by resilient disc valve i. The compressor is driven by an electric motor p which may be controlled by a pressure switch bolted to the head. An inlet filter q and pressure gauge s are provided. The filter may be adapted to purify the incoming air so making the compressor suitable for food processing or beer raising.
Patent GB-544846-A (GB)
Title: The preparation of readily soluble salts of dialkylaminoalkylamino acridines
IPC: C07D219/12
Filed: 1940-08-28
Abstract: 544,846. Salts of acridine compounds. CURD, F. H. S., and IMPERIAL CHEMICAL, INDUSTRIES, Ltd. Aug. 28,1940, No. 13566. [Class 2 (iii)] 2 - Methoxy- 6 - chloro - 9 - (# - diethylamino -α- methylbutylamino)-acridine is converted by treatment with carbon dioxide in the presence of water into its carbonate from' which the alkanesulphonates may be made by reaction with a free alkanesulphonic acid. According to the examples, carbon dioxide -is passed into a solution of the acridine in acetone and water, and the precipitated carbonate heated in ethyl alcoholic suspension with methanesulphonic acid to give the di-methanesulphonate ; ethanesulphonic acid and n-propanesulphonic acid may replace the methanesulphonic acid. Specifications 452,805 and 473,555 are referred to. In the Provisional Specification, the processes are described as applicable to 9- dialkylaminoalkylamino-acridines in general.
Patent GB-138379-A (GB)
Title: The manufacture of non-inflammable films or filaments for kinematographic and other industrial purposes
IPC: C08K5/523
Filed: 1918-08-21
Abstract: Non-inflammable films or filaments for kinematographs, lining projectiles, &c. are made by mixing substantially equal amounts of triacetin and triphenylphosphate with a solution of acetyl-cellulose, the said amounts being from 10-30 per cent of the weight of acetyl-cellulose.  The acetyl-cellulose is first thoroughly dried and is then kneaded with a solvent such as tetrachlorethane, or benzyl alcohol.  Specification 130,029 is referred to.  The Provisional Specification states also that the product may be used for preserving explosives in filament form.
Patent GB-1057042-A (GB)
Title: Improvements in or relating to information transfer devices
Inventor: TICKLE ANDREW CHARLES
IPC: G11C19/08
Filed: 1963-04-05
Abstract: 1,057,042. Circuits employing bi-stable magnetic elements. INTERNATIONAL COMPUTERS & TABULATORS Ltd. March 18, 1964 [April 5, 1963], No. 13626/63. Heading H3B. [Also in Division G4] In a shift register comprising anisotropic thin film areas 1 as the storage elements information is transferred from one element to a succeeding element by applying a magnetic field at an angle to the hard axis 17 of the first element so as to switch the magnetization of the film to the reset position " O " along the easy axis 2 and induce a signal in a linking conductor 3 with the succeeding element, and simultaneously applying to the succeeding element a magnetic field in the direction of the easy axis 2 whereby the induced signal in the linking conductor produces a field parallel to the hard axis 17 of the succeeding element and together with the magnetic field along its easy axis switches the magnetization of the succeeding element to the set position " 1." The resetting magnetic field of the first element 1 is produced by a current pulse from source 18 in conductor 4 which traverses the film areas in the direction shown and produces a magnetic field in the direction 6 to rotate the magnetization of the film. If the first element is in the "O " or reset state it would not be switched by the drive current pulse and the current induced in the link current would be insufficient to affect appreciably the remanent state of the second element 1. Transfer of information from an even-numbered element 1 to the next succeeding odd-numbered element is produced by the application of a driving current from source 19 to conductor 5 arranged as shown in Fig. 1. In order to transfer information along the succession of elements 1 the driving conductors 4, 5 are pulsed alternately. The configuration of the link conductors prevents transfer in the reverse direction. A binary " 1 " is written into the first element by applying a current pulse to conductor 7 in the reverse sense to the drive pulses in order to switch the element from its reset state to its opposite state. A single transfer conductor 9 may be used to control transfer into or out of a single element, Fig. 3. The link conductor 12 is arranged as shown and information transferred out of element 10 is entered into all the elements 11. In the arrangement of Fig. 4 (not shown) the driving conductor crosses a plurality of elements at an angle to the hard axis so as to form a logical " OR " circuit.
Patent GB-280445-A (GB)
Title: Improvements in mechanically driven typewriters
IPC: B41J7/02
Filed: 1927-05-20
Abstract: 280,445. Stiebel T. May 20, 1927. Relay type - bar actions; hammerimpression arrangements; keys. - In relay actions comprising a cam-operated impressionplunger, motion is transmitted from the cam to the impression - plunger by means of a reciprocating rod. In the machine shown in Fig. 1, type-bars 9 each bearing one or more types 11, 12 are pivoted to key-levers 1 co-operating with a cam 15 on a continuously rotating shaft A. Each key-lever is formed with an extension 13 normally engaging a spring fork 14, and is provided with a key 3 yieldingly supported by a spring 5 arranged in a sleeve 4 which can slide on guides 6, 7 on the key-lever. The type-bars are arranged radially to the printing point in a guide 10, the plane of the type-bars being closely adjacent to the platen 30; preferably the typebars are arranged as shown in Fig. 3 in three sets occupying planes tangential to the platen. An impression-plunger 22 abuts on a reciprocating rod 23 having a roller 19 engaging a cam 18 on the shaft A. On depressing any of the keys, the spring 5 is compressad and when the cam 15 permits the key-Lever to rise, the associated typebar is raised and the type 11 is positioned at the printing point; or by shifting the platen, one of the other types is positioned. Thereupon the plunger 22 is operated by the cam 18 and rod 24, the type-bar rocking forward slightly in opposition to a spring 66 during impression. After impression, springs 31, 24 return the plunger and rod, and the cam 15 returns the key-lever and type-bar io normal position. Impression is adjusted by means of a nut 20 adapted to alter the length of the rod 23. The type-bars may be arranged to lift a guide fork 25 for an ink ribbon 26.
Patent GB-737135-A (GB)
Title: Improvements in means for attaching agricultural implements to tractors
Inventor: KVERNELAND HAKON
IPC: A01B63/04
Filed: 1953-05-18
Abstract: 737,135. Agricultural implements. KVERNELANDS FABRIKK AKTIESELSKAP. May 18, 1953, No. 13902/53. Class 6 (1). An attachment for connecting an implement such as a harrow to a tractor comprises links a pivoted in the implement and pivotally attached to a drawbar b on the tractor. The drawbar b is attached to power lifting links A, t and the links a are so shaped that the implement may move laterally with respect to the tractor. To enable the implement to be raised clear of the ground it is provided with forwardly converging rods S attached by a chain K to a member O fixed to the drawbar.
Patent GB-1385323-A (GB)
Title: Apparatus for separating a mixture of two immiscible liquids  having different specific gravities
IPC: B01D17/02
Filed: 1971-05-10
Abstract: 1385323 Separating a mixture of two liquids PHIL GILLARD & SON LTD 12 April 1972 [10 May 1971] 13930/71 Heading B1D Two liquids, such as oil and water pumped from the sea following oil spillage, are separated by gravity in a chamber 22 having therein a frusto-conical baffle 20 into which inlet duct 19 extends, respective outlet ducts 23 and 28 for the oil and water being extended upwards, by say 50 feet, to raise the pressure in the chamber 22 thereby increasing the separation rate. As shown the inlet duct 12.. 19 is similarly extended, the mixture being delivered thereto by gear pump 11, but these parts could be replaced by an overhead reservoir. Electric heaters 43 reduce viscosity of outgoing oil. The outlet ducts each comprise upward and downward flow limbs 24, 25 with an anti-syphonic air outlet 26, 31 at the top and a lower outlet 27, 32. Inlet duct 12..19 is similar but has an annular gap 18 in the downward flow limb (Fig. 3, not shown) to release entrained gas. When mounted in an oil tanker ship, chamber 22 is available for oil cargo storage when not in use. Two valves 40, 41 enable solids to be discharged from within baffle 20, and a drainage valve 33 is supplied.
Patent GB-472773-A (GB)
Title: Improvements in or relating to pipe joints, connections and the like
IPC: F16L27/10
Filed: 1936-05-16
Abstract: 472,773. Pipe joints. AUTOMOTIVE PRODUCTS CO., Ltd., and BOUGHTON, E. B. May 16, 1936, No. 13937. [Class 99 (i)] A flexible pipe connection comprises a resilient sleeve 16 surrounding the pipe end and bearing against an external flange 15 of the pipe, the sleeve fitting within a socket 10 and being retained by means such as a washer 17 and a split spring ring 19 having a handle 20 and engaging a groove in the socket. Clearance is, provided between the flange and the base 15 of the socket, which may both be conical. To render the sleeve more flexible a recess 26, Fig. 3, may be provided.
Patent GB-1221194-A (GB)
Title: Improvements in closures for electrical components
IPC: H01C10/38
Filed: 1968-03-22
Abstract: 1,221,194. Variable resistors. MARKITE CORP. 22 March, 1968 [23 March, 1967], No. 14049/68. Heading H1S. An electrical component having a hollow casing with at least one opening sealed by a closure member which is biased outwardly against a stop in the opening by a spring biasing means arranged within the casing and pressing against the closure member. In a tubular casing 12 for a potentiometer, two disc-shaped closures 30 and 32 are biased outwardly by a helical spring 42 against snap rings 44 and 46 which are held in annular grooves 48 in the casing 12. The closures 30 and 32 have circular shoulders 58 against which the snap rings abut to prevent radially inward collapse of the rings, and may be adapted for mounting the casing e.g. by threaded holes 62 and 64. The casing contains a variable resistance 16 having a contact 20 movable relative to the fixed resistance by shaft 24. External wiring is brought into the casing via holes 43 in the closure 30.
Patent GB-1070356-A (GB)
Title: Improvements in or relating to self-adapting signal transformers
IPC: G06F7/02
Filed: 1965-04-02
Abstract: 1,070,356. Adaptive converter circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 2, 1965 [April 7, 1964], No. 14057/65. Heading G4R. A self-adapting signal converter comprises input terminals 1-4, Fig. 5, not shown) each connected to a controllable amplifier (A-D) and to a control unit (10), the outputs of the amplifiers being summed (at 5), the sum signal (w) subtracted (at 8) from the desired output signals, and the difference signal V being connected to the control unit (10) to cause the amplifiers to be altered, the amount of alteration becoming progressively less with succeeding input patterns. The sum signal (w) is applied to a flip-flop (6) so that the output (u) is " 1 " or " 0 " according to the value of the sum. In an example of an electromechanical control unit, Fig. 6 (not shown), there is, for every amplifier, a motor, a reversing mechanism (J), a change-over switch (S) controlled by relay (P), a resistor (R) varying in steps, a relay (Q) having contacts (q1 and q2) and a clock (K) which controls a contact (k). For each new input pattern (x, y, z) a pulse (r) is derived which steps the resistor (R) to the next higher value. It also picks up relay (Q) to close contacts (q1 and q2) thereby starting the motor and holding relay (Q). The motor rotates at a speed proportional to the difference signal (V) the proportionality becoming less for each -input pattern as the value of resistor (R) increases. Pulse (r) also starts a clock (K) controlling contact (k). Whether the amplification factor of (A) is increased or decreased depends on the direction of rotation of the motor (i.e. upon the sign of signal v) and upon the position of reversing mechanisms (J), controlled via a switch (S) by the polarity of the input signal (X). The direction of change therefore depends on the sign of the product (V.X). The clock (K) opens contact (k), to reset the unit, after a fixed interval. Instead of altering the response of the motor by increasing the resistor (R), the clock (K) may be designed to give successively shorter intervals.
Patent GB-450668-A (GB)
Title: Process for the manufacture of polymerisation products of olefines
IPC: C07C2/18
Filed: 1934-12-20
Abstract: Olefines other than isobutylene are polymerized by treatment with a solution of an anhydride of an acid of phosphorus in a liquid acid of phosphorus, with or without the addition of heavy metal catalyst such as a copper or silver salt.  In examples: (1) propylene is treated under pressure with equal weights of phosphoric acid and phosphorus pentoxide; at 200 DEG  C. the product boils at 100--200 DEG  C.; at 100 DEG  C., 60 per cent of the product boils above 200 DEG  C.; (2) ethylene is passed into equal parts of phosphoric acid of 96 per cent and phosphorus pentoxide at 200 DEG  C. and 30 atmospheres pressure; of the product, 50 per cent boils at 50--100 DEG  C., 20 per cent at 100--200 DEG  C. and the rest at 200--300 DEG  C.  Specification 340,513 is referred to.
Patent GB-570139-A (GB)
Title: Improvements in or relating to the extrusion of thermoplastic materials
IPC: B29C48/15
Filed: 1941-11-03
Abstract: In extruding rods and sections, or in coating wires and cables by extrusion, the rods, sections and coatings consisting of thermoplastic material and being of such substantial thickness as normally to lead, on cooling after extrusion, to the presence of voids therein, the thermoplastic material is extruded in the heated state through a die and then subjected to strong cooling by means of compressed air, water under pressure or other fluid medium under pressure, the pressure of the medium being sufficient to prevent the permanent formation of voids.  The cooling-pressure medium may be passed through a tube through which the rod or coated wire is drawn. The tube may be attached at one end directly to the die, the rod or coated wire being drawn through a gland at the other end of the tube. The air, water, &c. may escape from the tube through the gland or through a pressure controlling valve.  Specification 471,590, [Group IV], is referred to.
Patent GB-1489205-A (GB)
Title: Footwear
IPC: A43B9/00
Filed: 1974-10-15
Abstract: 1489205 Shoes, &c. T FUKUOKA 15 Oct 1974 [2 Nov 1973 18 Jan 1974 4 May 1974] 14158/77 Divided out of 1489202 Heading A3B A shoe, &c. comprises at least one side vamp portion 206 of air-permeable material, e.g. leather, or air permeable synthetic resin, natural or synthetic fibre, non-woven fabric, &c. and at least one strip 203 of moulded material. Heel quarters 204, a toe cap 205, an upper vamp strip and an upper edge strip may, as shown, be integral with the side strips 203, or formed separately. The side vamp portion 206 may be formed with holes with which the strips 203 are integrally moulded. The strips 203, &c. are moulded from synthetic resin, e.g. vinyl chloride or polyurethane and may be moulded integrally with the sole 200 or formed separately therefrom. The sole has a foamed layer 201 between non- foamed layers, and may have a peripheral ridge, and may be moulded from vinyl chloride. The shoe. &c. may be moulded by various methods of injection moulding.
Patent GB-1171345-A (GB)
Title: Improvements in or relating to Armboards
Inventor: POLYBLANK ALAN HENRY
IPC: A61M5/52
Filed: 1967-03-29
Abstract: 1,171,345. Arm support. ARMBOARD DEVELOPMENT MFG. CO. Ltd. 19 Feb., 1968 [29 March, 1967], No. 14333/67. Heading A5R. A support for holding an arm, e.g. to facilitate making an injection, comprises an arm rest 1 mounted on a base 2 by a lockable universal joint 3 comprising a ball 4, socket 6 and locking device 7. The bell is provided with two screw clamps 8 and 9 by which it may be attached, e.g. to a dental chair, and a clip 11 which may be used to support a syringe.
Patent GB-959320-A (GB)
Title: A method for polymerizing aldehydes
IPC: C08G2/00
Filed: 1961-04-20
Abstract: A crystalline polyether type aldehyde is prepared by polymerizing a monoaldehyde of 2 to 10 carbon atoms of formula R-CHO, where R is an alkyl, cycloalkyl, alkenyl, or cycloalkenyl radical any of which may be substituted by one or more halogen atoms, an aralkyl radical or a heterocyclic radical having a 5 or 6-membered ring containing oxygen, at -20 to -120 DEG C. in an inert solvent using as catalyst 0.01 to 10 mol per cent per mol of aldehyde of a hydride or organo compound containing an element in Group III of the Periodic Table. Specified aldehydes are acetaldehyde up to decanal, chloro and fluoro acetaldehydes and the di and trichloro-propionaldehydes, cyclohexylaldehyde, cyclohexylacetaldehyde, furfural, 3-cyclohexenal, 2-formyl-3.4-dihydro-2H-pyran, phenylacetaldehyde and acrolein. The catalysts may be boron, aluminium, gallium, indium or thallium hydrides, the alkyls and aryls of these metals, Grignard compounds such as alkylaluminium halides, alkyl or aryl metal alkoxides, aryl metal hydrides and boron compounds.  Particularly preferred solvents are halogenated alkanes e.g. methylene dichloride while alkanes, cyclic alkanes, alkenes, aromatic hydrocarbons, ethers, halogenated ethers, esters and nitriles are also listed. Methanol and n-hexane are used to stop the reaction and separate the product.
Patent GB-567909-A (GB)
Title: Improvements in or relating to smokers' pipe grates
IPC: A24F5/08
Filed: 1943-09-02
Abstract: 567,909. Tobacco pipes. BENTLEY, W. B. Sept. 2, 1943, No. 14370. [Class 130] A pipe grate comprises upstanding arms 11, 15 which position it in the pipe bowl, and a base portion 10 having two or more downwardly extending feet 12 which rest on or near the bottom of the bowl and space the base portion therefrom. The arms 15 are diametrically opposite one another and as shown carry sliding extensions 16 bent outwards at their free ends to engage the top of the bowl and moving with sufficient friction 'to remain in their adjusted positions. In modifications, the feet are formed by punching tongues out of the base portion, the apertures permitting smoke to pass through the base to the mouthpiece instead of round its edges, or the base may be simply crossed strips connecting the opposite arms 15. 11. The extensions 16 may be omitted and the upper ends of the arms 15 be perforated to receive a removing tool.
Patent GB-1040442-A (GB)
Title: Improvements relating to cementitious material
Inventor: URMSTON CHARLES WILLIAM BRABAZ
IPC: C04B28/04
Filed: 1962-04-13
Abstract: Aerated concrete is obtained by adding fine aluminium, alkali and less than 2% (relative to dry ingredients) of soap to water, and forming a mix including cementitious material. Fly-ash and sand can be used a fillers.  Aggregates are expanded polystyrene, sintered pellets of clay or fly-ash, and foamed slag, whilst soaps used are the stearates of sodium, potassium, lead, aluminium, ammonium, calcium, cadmium, lithium, magnesium and zinc.  As catalysts for the alkali-aluminium reaction oxides of iron, manganese, zinc and cobalt can be used.  Lime or cement are the binders.
Patent GB-1380397-A (GB)
Title: Elastic memory tubing
IPC: B29C48/09
Filed: 1971-05-12
Abstract: 1380397 Extruded heat-shrinkable tubing BRITISH INSULATED CALLENDERS CABLES Ltd 11 May 1972 [12 May 1971] 14480/71 Heading B5A [Also in Division F2] A diametrically heat shrinkable tube of a P.V.C. composition having a B.S. softness of 10-80, e.g. containing 30-100 parts by weight of an ester type plasticizer per 100 parts resin, is continuously made by extruding a tube 3 of the composition (either horizontally or vertically); cooling the tube to a temperature above the composition softening point and at which it is predominantly elastically deformable; applying a lubricant to the exterior tube surface; passing the tube, via a steel sealing die 6 of smaller diameter than the tube, into and through a cooled chamber 6 through the walls of which suction is applied to expand the tube to the diameter of the chamber, at which it is set by cooling to below the composition softening point. The tube interior may be at above atmospheric pressure during expansion. The cooling to above the softening point may be effected through a bath of fluid which is compatible with, or may comprise the lubricant, but in the described embodiment is effected by one or more air jets 4 directed transversely, or parallel, to the extruding tube 3, e.g. from an annular nozzle through which the tube 3 passes, with the lubricant being applied from a drip feed 5. The vacuum is applied from a manifold 10 through axially spaced wall slots of the chamber, which is cooled by a surrounding water circulating jacket and is also provided with a downstream sealing die 11 through which the expanded and set tube is drawn by an endless belt device 12. The lubricant may comprise a specified silicon oil, a petroleumderived synthetic detergent which is subsequently removed by washing, or a suspension of P.T.F.E. in silicone oil.
Patent GB-383565-A (GB)
Title: Improvements in locks or latches
IPC: E05B63/18
Filed: 1932-05-23
Abstract: 383,565. Latches. OLDHADZ, J. L., 264, Hibson Road, Nelson, Lancashire. May 23, 1932, No. 14538. [Class 44.] A spring-advanced latch is held withdrawn by a non-positive catch acting upon the key follower. The catch may consist of a spring-pressed pin 10 engaging a notch 15 in the latch-follower 9. This form of catch may be applied also to a knob-operated follower. A stop 17 limits the rotation of the follower.