baber/WOPTO huggingface dataset:
Patent GB-873119-A (GB)
Title: Improvements in or relating to button-working machines
Inventor: POHLE WALTER
IPC: B65G29/00
Filed: 1958-01-14
Abstract: 873,119. Button hoppers. KNOHOMAWERKE VEB. Jan. 14, 1958, No. 1352/58. Class 78 (1). [Also in Group XXIV] Buttons in hopper 2 are discharged therefrom by the notches of notched disc 1. In the drive to disc 1 is included friction wheels 6, 7 which form a slipping clutch, which slips if a button jams the disc, and friction wheels 4, 3 which form a variable speed control for the disc to permit the use of differing discs for differing button sizes.
Patent GB-911705-A (GB)
Title: Improvements in or relating to tube coiling machines
IPC: B21D11/06
Filed: 1960-01-14
Abstract: 911,705. Coiling; making helical tubing of non-circular section. HUET, A. Jan. 14, 1960 [Jan. 26, 1959], No. 1444/60. Addition to 905,027. Classes 83 (2) and 83 (4). An improvement in or modification of the machine for manufacturing coiled tubes, according to the parent Specification, by pushing tubing to coiling rollers, and in which the pushing rollers are used at the same time for transforming the cross-section of the tube, is characterized in that each supporting roller co-operates with a driving roller to engage the tube therebetween and is movable towards and away from said driving roller by independent adjustable pressure means. Adjustment of the pressure between a driving roller a and a pressure roller b of a pair is effected by a screw 50 through a cross-member 48. Belleville washers 47 and bearing blocks 46 (not shown) for the roll shaft 43. The rollers a, b deform the tubing to lenticular shape.
Patent GB-733002-A (GB)
Title: Improvements in or relating to polyamides
Inventor: COSTAIN WINSTON
IPC: C08G69/40
Filed: 1953-01-19
Abstract: Polyamides are prepared by reacting terephthalic acid with bis(5-aminopentyl) ether.  Also present in minor amounts may be other acids such as glutaric, adipic, pimelic, suberic, azelaic, sebacic, brassylic, paraphenylenediacetic and hexahydroterephthalic acids, other diamines such as ethylene, tetramethylene, hexamethylene, octadecamethylene, paraxylylene and cyclohexylene diamines, and monoaminomonocarboxylic acids or amide forming derivatives thereof, for example caprolactam.  The formation of the polyamides may be carried out by conventional means, and may be stopped at any desirable stage by the use of monofunctional amide-forming reactants, as described in Specification 495,790.  The polyamides formed may be employed in the manufacture of fibres.  Specifications 487,734 and 615,954 also are referred to.ALSO:An amine salt is formed by boiling a mixture of 48 parts of bis-(5-aminopentyl) ether, 41.5 parts of terephthalic acid, and 100 parts of water until a solution is obtained.  On cooling and adding ethanol the salt separates out, which, after recrystallization from aqueous ethanol, has a melting-point of 234 DEG  C.  Specifications 487,734, 495,790 and 615,954, [Group IV (a)], are referred to.
Patent GB-157782-A (GB)
Title: Improvement in wireless radio signalling by the arc-system
IPC: H04L27/04
Filed: 1921-01-10
Abstract: 157,782. Cohen, L. Nov. 13, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Arc oscillation generators; keying systems and apparatus.-In an arc generator system, two oscillating circuits are shunted across the arc, and the time constants L/R of the two circuits are so adjusted in relation to one another that, when both circuits are closed, oscillatory current will flow in one circuit but not in the other. As applied to a wireless system, Fig. 1, an arc 3 fed by the direct current generator g is shunted by (1) an antenna circuit including the aerial 1, inductance 2, arc 3, and ground 4, and (2) an absorption circuit comprising earth 4, arc 3, inductance 2<a>, condenser 5<a>, electrodes 6, 6<a>, and earth 4<b>. By making the time constant of the absorption circuit smaller than that of the antenna circuit by using an inductance 2<a> in the absorption circuit small compared with the aerial inductance 2, when the electrodes 6, 6<a> are together oscillatory current will flow in the absorption circuit and none in the antenna circuit. When the signalling key is depressed, the electrodes 6, 6<a> are separated, and the high resistance formed by the electrolytic solution between them is introduced into the absorption circuit, which reduces the current therein to a very small fraction, all the energy from the arc being taken up and radiated by the antenna circuit. The capacity of the condenser 5<a> is preferably larger than the capacity of the antenna circuit, in order that, when the electrodes 6, 6<a> are closed, in spite of the smaller inductance of the absorption circuit, it will absorb the same amount of energy as the antenna circuit does when the electrodes are separated. A grounded condenser 5 may be inserted to maintain the arc steady. A resistance other than an electrolytic one may be used, a modification being described in which an ordinary non-inductive resistance is adapted to be introduced into the absorption circuit by the operation of a signalling device.
Patent GB-322931-A (GB)
Title: Improvements relating to measuring motions employed in the winding of yarns and threads
IPC: G01B5/04
Filed: 1929-01-16
Abstract: 322,931. Stubbs, J. H., and Stubbs, Ltd., J. Jan. 16, 1929. Stop-motions.-In a measuring stop-motion of the type comprising a notched measuring disc 8, Fig. 1, coacting with a spring-controlled knockoff rod 7, an angularly movable plate 16 having three arms 16<a>, 16b, 16<c> is mounted on the disc 8- the arm 16<a> projecting beyond the periphery of the disc 8 and being normally held by a spring 18 so as to mask the notch 17. The edge of the arm 16<a> is tangential to the disc 8. When the winding is nearing completion the end of the arm 16<a> is forced downwardly by the foot 7<a> of the rod 7, Fig. 3, until the notch 17 is uncovered, the rod 7 then entering the notch 17 and stopping the machine. When the drive is to be restarted the rod 7 is withdrawn, the arm 16<a> immediately springs into position to cover the notch 17, Fig. 5, and winding may be recommenced without re-setting the stop-motion or any idle movement. In a modification the end of the arm 16<a> may be flanged to cover the end of the notch 17 and the end of the rod 7 left plane.
Patent GB-967705-A (GB)
Title: Frequency control in electronic oscillators
IPC: H03F1/30
Filed: 1963-01-14
Abstract: 967,705. Frequency modulation; transistor crystal oscillators. BENDIX CORPORATION. Jan. 14, 1963 [Jan. 23, 1962], No. 1606/63. Headings H3R and H3T. A transistor crystal oscillator has temperature variable capacitors 42, 32 across the crystal and base circuit to compensate temperature changes in a voltage divider bias network 22-31 for the base; also temperature variable resistors 30, 20, across the divider arms to compensate changes in the crystal temperature; and condition sensors 62 66 produce voltage and resistance changes varying the base bias to frequency modulate the oscillator correspondingly (due to base/collector capacitance varying with input voltage). Switches 50 and variable resistors 22, 24, 28, 31, enable the correct initial conditions to be set up. To this end the inductor 34 and the circuits of capacitors 32 42, 40 may also be adjustable.
Patent GB-668469-A (GB)
Title: Improvements in or relating to methods of manufacturing flattened helical springs and springs manufactured according to such methods
IPC: F16F1/04
Filed: 1949-01-20
Abstract: 668,469. Coil springs. VRIES. A. DE, and VRIES, L. DE. Jan. 20. 1949. No. 1666/49. Drawings to Specification. Class 108(iii) The method of manufacturing a flattened helical spring comprises the steps of first manufacturing a helical spring of normal form, and whose coils lie one against the other under an initial bias amounting to at least 50 per cent of the tensile force which does not extend an unbiassed spring spring of the same dimensions beyond its elastic limit and whose wire thickness is less than '/n of the mean coil diameter distance between the opposite crosssectional centres of the spring coils, where n is 10 if the bias amounts to 50 per cent of the tensile force or is less than 10 if the bias is greater than 50 per cent and then subjecting the spring to an axial tension such that the coils turn over in such a way that each turned-over coil overlaps at least one other coil. The initial bias may be provided by twisting one end of the unbiassed helical spring, to be of smaller diameter, drawing the twisted end through the spring which is itself twisted to become smaller as it passes through the unbiassed portion. U.S.A. Specification 2,495,212 is referred to.
Patent GB-638692-A (GB)
Title: Improvements in framework components for panelled structures
IPC: B62D33/04
Filed: 1948-01-20
Abstract: 638,692. Panelled work. WATTS, G. W. Jan. 20, 1948, No. 1726. [Class 20 (iv)] [Also in Group XXXII] A framework component for use in the making of a panelcarrying structure comprises a metal bar 11  of T-section having deep narrow grooves 12 formed in a common plane in the flanges constituting the T-head 10 for the reception of panels 16, said grooves extending continuously along the flanges to form thin cheeks 14 each having a slightly bulbous section 15 at their outer edge and capable of being flexed under pressure exerted by clamping screws 17 adapted to pass through the cheeks 14 and the associated panels 16 and then into the thicker portions 10b of the T-head 10.
Patent GB-1477603-A (GB)
Title: Aircraft attitude indicators
IPC: G01C19/32
Filed: 1976-01-09
Abstract: 1477603 Aircraft attitude indicators FERRANTI Ltd 9 Jan 1976 [15 Jan 1975] 1840/75 Heading G1C An aircraft attitude indicator comprises an indicating member 23 normally driven by torquer means 30-37 in response to externally-generated pitch and roll signals, and as a standby in case of failure of the torquer means a two-degree-of-freedom gyroscope 17 mounted in an inner gimbal 19 which is mounted in a support member 16 pivotal about an axis perpendicular to that of the gimbal 19, the gimbal 19 being connected by drive means to the indicator member 23 and the torques developed by the torquer being greater than those produced by the gyroscope. The indicator member 23 is mounted for rotation about an axis 22 behind a window 12 with an index 13 in the support member 16 which is mounted by bearings 14, 15 in a casing 10. The gyro rotor 18 has a vertical axis 20 and is electrically powered; bevel gears 25, 26 and a shaft 27 link the inner gimbal 19 and indicator member 23. A roll torque motor 30, 31 and pick-off 32, 33 and a pitch torque motor 34, 35 and pick-off 36, 37 drive the frame 16 and indicator 23 respectively during normal operation with torques several orders of magnitude greater than the torques produced by the gyro 17.
Patent GB-508194-A (GB)
Title: An improved water mixing device and spray
IPC: G05D23/13
Filed: 1939-01-20
Abstract: 508,194. Mixing liquids in flow. WASHBROOK, W. E. Jan. 20, 1939, No. 2009. [Class 86] In a hot and cold water mixer comprising a circular chamber into which the water is supplied tangentially, means are provided for reducing the pressure of the cold water. As shown the hot water is supplied to the chamber b through an orifice e and the cold water through an orifice f, a spring valve q being provided in the cold water passage. The mixture issues from an axial orifice as a spray. In another form the cold water passage is obstructed by a screw down valve. A non- return valve may be provided in the hot water passage.
Patent GB-763911-A (GB)
Title: A blood anticoagulating agent and process for the manufacture thereof
IPC: C08B37/08
Filed: 1955-01-24
Abstract: The invention comprises sulphuric acid polyesters of partially degraded chondroitin-sulphuric acid, said esters having an intrinsic viscosity [c ] of less than 0.5, and preferably of from 0.045 to 0.030, and sulphur content of from 12 to 15 per cent, and their preparation by treating chondroitin-sulphuric acid with a mixture of pyridine and chloro-sulphonic acid until a product of the required intrinsic viscosity and sulphur content is obtained. This may be achieved by conducting the treatment at about 105-115 DEG  C. for 2 to 3 hours, and in a preferred embodiment the chondroitin-sulphuric acid is added to the pyridine/chlorosulphonic acid mixture at 90 DEG C. and the mixture is stirred for about 2 1/4 hours at 110 DEG  C., and, finally, for 2 additional hours without heating.  In general the polyesters are prepared by partially hydrolytically degrading chondroitin-sulphuric acid with acid or alkali and then sulphonating the degradation product until it attains the required viscosity and sulphur content, as described in Specification 704,516.  In examples: (1) an aqueous solution of chondroitin-sulphuric acid ([c ] = 0.35) is treated with conc. HCl and the mixture stirred at 70 DEG  C. for 280 minutes, after which it is neutralized with caustic soda, filtered and concentrated; the concentrate on treatment with methanol containing sodium acetate gives a product which on separation and drying has [c ] = 0.105; this product is treated with a mixture of chlorosulphonic acid and pyridine at 90 DEG  C. with subsequent stirring for 3 hours and then 2 hours without heat; the product which precipitates on addition of methanol containing sodium acetate is redissolved in water and reprecipitated, again dissolved in water and treated with narcotine hydrochloride to give a narcotine salt which is decomposed with soda; neutralization with glacial acetic acid and evaporation gives a concentrate which is precipitated with methanol to give a polyester of [c ] = 0.040 and a sulphur content of 14.45 per cent; (2) chondroitin-sulphuric acid ([c ] = 0.35) is heated at 110 DEG  C. with chlorsulphonic acid and pyridine for 2 1/4 hours and then for 2 hours without heating, and the mixture then processed as in Example (1) to give a polyester of [c ] = 0.038 and sulphur content 14 per cent.
Patent GB-1431037-A (GB)
Title: Continuous electrolytic application of coatings
IPC: C25D5/02
Filed: 1975-01-17
Abstract: 1431037 Electro-plating patterns on metal strips GALENTAN AG 17 Jan 1975 [21 Jan 1974] 2093/75 Heading C7B Metal patterns are electro-plated on a metal strip passing over a circumferential slot 31 or other plating orifice in a divided wheel 7 having an internal electrolyte chamber containing an anode, there being seals 47 and 48 provided along the edges of the slot which form part of a conical surface whose apex for the respective seal points away from the slot. The angle α may be 30'. The wheel disclosed comprises parts 17 and 18 rotatable in ball bearings on fixed rod 19 central chambers 29, 30 contain fixed plastics parts 32, 33, each having a peripheral annular anode 61, 62, and the part 33 having a spiral chamber 36 which leads to a plurality of outlet points 40 separated by radially curved plastics ribs (38) and arranged in the lower part of the wheel Fig. 3 (not shown). Electrolyte enters via inlet 41 and is distributed via holes 42 to the spiral chamber. Excess electrolyte drains via holes 43, 44. Anodic current enters via wire 45. Part 17 is fixed laterally on the rod 19 while part 18 is laterally adjustable by screw thread on part 21 which is fixed. Ribs 26 engage slots 25 to prevent rotation of part 18 on the adjusting thread when adjustment is complete. Corresponding adjustment of guide and take-off rollers, which have guiding edge rims, is specified. Specification 1431036 is referred to.
Patent GB-1495020-A (GB)
Title: Respirators
IPC: A62B18/04
Filed: 1974-01-16
Abstract: 1495020 Respiratory helmets NATIONAL RESEARCH DEVELOPMENT CORP 10 Jan 1975 [16 Jan 1974] 02095/74 Heading A5T A respirator comprises a hood 30 with an outer skin 31 to fit over the wearer's head and means 32 for supporting the hood spaced from the wearer's head, there being a filter 36 in said space through which air is propelled by air displacing means 34. The filter may comprise a bag filter e.g. of resin-treated wool felt and may have sound absorptive properties. The means 34 may comprise a fan powered by a cap-lamp battery. The hood may have a visor 39 which is openable and a flexible skirt which rests on the wearer's shoulders. The means 32 may comprise a harness. A band 38 of expanded polyurethane may provide a seal at the back and sides of the wearer's head. The outer skin 31 of the hood may be a protective helmet.
Patent GB-1362596-A (GB)
Title: Vulcanization of elastomers
IPC: C08K5/36
Filed: 1972-01-17
Abstract: 1362596 Vulcanizing halogen-containing elastomers POLYSAR Ltd 17 Jan 1972 [11 Feb 1971] 2136/72 Headings C3E and C3P A mixture comprising (1) an essentially saturated elastomer having reactive halogen atoms in the alpha-position to carbonyl or ethylenically-unsaturated carbon atoms, (2) a hydroxide of a metal of Group Ia or IIa and (3) sulphur or a sulphur-releasing substance is vulcanized. Examples are given in which a compounded ethyl acrylate-vinyl chloroacetate elastomer or bromobutyl rubber is vulcanized using calcium hydroxide, lithium hydroxide or barium hydroxide together with sulphur as vulcanizing agent and the said elastomer is also vulcanized using calcium hydroxide and dipentamethylene thiuram tetrasulphide.
Patent GB-100102-A (GB)
Title: Improvements in Hose and like Pipes.
Inventor: MANY ROBERT
IPC: B29D23/00
Filed: 1916-02-14
Abstract: 100,102. Many, R. Feb. 23, 1915, [Convontion date]. Hose pipes particularly designed to lie flat when out of use comprise an outer covering in two parts 2, 3, of woven cotton fabric, and a removable rubber lining 4, reinforced in the region of the crease by strips of fabric 5, 6 cut on the bias and secured to the lining by adhesive. The portions 7, 8 to which fabric is not secured allow expansion of the lining 4. The strips 5, 6 hold the lining 4 cut of contact with the inner surface of the outer covering. The Specification as open to inspection under Sect. 91 (3) (a) states that one, or more than two, strips of reinforcing fabric may be used in place of the two strips 5, 6. This subject-matter does not appear in the Specification as accepted.
Patent GB-289520-A (GB)
Title: Improvements in or relating to electric protective systems
IPC: H02H1/00
Filed: 1927-01-26
Abstract: 289,520. Reyrolle & Co., Ltd., A., Biles R. W., and Scott, E. W. M. Jan. 26, 1927. Cut-out arrangements.-In a protective system, in order to avoid faulty operation due to the capacity currents of high-frequency in the pilot wires, a condenser is connected across the pilot circuit at or near the protective relay so as to constitute a concentrated or localized capacity and ensure that such high-frequency currents passing through the relay shall have a low powerfactor. The Arrangement is particularly applicable to a tee'd feeder (as shown) in which the pilot wire capacity current is unsymmetrically distributed. The feeder is protected by a pilot circuit B which, at each of the main feeder A and at the end of the tee A<1>, is joined in circuit with the secondaries C of current transformers, each bank of secondaries being connected in reversed delta.. The condensers E according to the invention are connected across the pilot-wire circuit near the protective relays D, D<1> which are of the wattmeter type with a series winding D<1> and a voltage winding D. Diverter relays F mav be employed to insert a stabilizing resistance G into the field circuit in the event of a heavy straight-through fault. In addition to the condenser the pilot circuit may be shunted near the relays by non-inductive resistances to prevent large high-frequency currents being generated in the secondaries of the current transformers.
Patent GB-453327-A (GB)
Title: Improvements in bobbin mandrels for securing cylindrical bobbin sleeves on the spindles of yarn winding machines
IPC: B65H54/54
Filed: 1936-01-24
Abstract: 453,327. Winding yarns. VEREINIGTE GLANZSTOFF - FABRIKEN AKT. - GES., Elberfeld, Wuppertal, Germany. Jan. 24, 1936, No. 2268. Convention date, Feb. 8, 1935. [Class 120 (ii)] A mandrel for holding the sleeves upon which the yarn is wound in yarn winding machines comprises a shaft 1, mounted in the usual cradle, a hub 2 on the shaft, a mandrel sleeve 5 rotatably mounted on the hub, and a pair of flanges 6, 7 on the sleeve 5 between which the bobbin sleeve 8 is held ; the flange 6 is fixed to the sleeve 5 and the flange 7 is axially slidable, under the pressure of a spring 15, on a member 17 detachably connected to the sleeve 5 and carrying an abutment 16 for the spring. The member 17 is, as shown, a tube detachably connected to the sleeve 5 by a bayonet joint 18 and the flange 7 is prevented from sliding off the member 17 by a stop 19. The abutment 16 may be in the form of a disc by which the mandrel may be rotated to wind a few turns of yarn on the bobbin sleeve 8 before normal winding commences.
Patent GB-763806-A (GB)
Title: Improvements relating to food mixers
IPC: A47J43/044
Filed: 1955-01-26
Abstract: 763,806. Food mixers. HOOVER; Ltd. Jan. 26, 1955 [Feb. 8, 1954], No. 2291/55. Class 86 A food mixer comprises an inner bowl 11 rotatably mounted within an outer bowl 10 and a power unit 30 carrying beaters 33, the power unit being removably mounted on the outer bowl 10 so as to be capable of turning about a vertical axis to move the beaters laterally towards the side of the inner bowl 11. The mounting for the power unit consists of a hinged pin 24 which is housed in a recess 26 formed in the handle 20 of the bowl 10 when not in use. A roller 16. Fig. 3, rotatably mounted on the rim at one side of the bowl 10 engages a flange 14 on the rim of the bowl 11 and thereby prevents the inner bowl from tilting when the beaters 33 are disposed at that side of the bowl. The power unit 30 has a handle 34 the end 36 of which co-operates with extensions 35 on the casing to support the power unit when not in use
Patent GB-620638-A (GB)
Title: Improvements in induction systems for internal combustion engines
IPC: F02B75/24
Filed: 1947-01-24
Abstract: 620,638. Induction manifolds. DEHN, S. G. (Continental Motors Corporation). Jan. 24, 1947, No. 2328. [Class 7 (ii)] A horizontally-opposed multi-cylinder internalcombustion engine has an induction manifold assembly including a horizontal transverse conduit 18 located beneath the engine and terminating in a pair of longitudinal secondary conduits which are connected by rising and outwardly-directed branch pipes to individual cylinders. In one form, Figs. 2 and 3, having staggered opposed banks 11, 11a, each of three cylinders, two carburettors are connected by risers 16, 16a to chambers 17, 17a which are joined by a transverse conduit 18 extending through the crankcase 10. The chamber 17 connects with secondary longitudinal branch pipes 19, 20 the former of which terminates in a part 22 leading to one cylinder of a bank while the latter is branched at 23 into portions 21 which lead to the other two cylinders. Similar manifolding leads from the chamber 17a to the other bank of cylinders 11a. In a modification, a single carburetter located centrally beneath the engine has a riser passing upwards through the crankcase and leading to the middle of a transverse conduit such as 18 which opens at its two ends into secondary distributing chambers connected by manifolding similar to that described above to the cylinders. In another modification, Fig. 6, for a fuel-injection engine, the air inlet 40 opens into a transverse pipe 41 leading to conduits 50 which extend forwardly and upwardly and are connected by pipes 51 to the cylinders.