baber/WOPTO huggingface dataset:
Patent GB-474317-A (GB)
Title: Improvements in or relating to electric arc furnaces
IPC: H05B3/66
Filed: 1936-10-14
Abstract: 474,317. Supply systems for heating arcs. I. G. FARBENINDUSTRIE AKT.- GES. Oct. 14, 1936, No. 27920. Convention date, Dec. 7, 1935. [Class 38 (iv)] [Also in Group XI] A furnace arc is started by means of high frequency derived from the furnace supply circuit by means including an adjustable transformer or an induction regulator T to produce a phase displacement. Chokes E<1>, E<2> tuned to the capacities of the electrode guide sleeves D<1>, D<2> and blocking condensers F<1>, F2 are arranged as shown.
Patent GB-1426735-A (GB)
Title: Composite structures
IPC: B32B27/00
Filed: 1972-06-15
Abstract: 1426735 Rubber-polycarbonate laminates DUNLOP Ltd 29 May 1973 [15 June 1972] 27940/72 Heading B5N A polycarbonate plastics material is bonded to a rubber composition by heating the polycarbonate plastics material to fuse at least its surface and allowing the polycarbonate plastics material to cool in contact with the rubber composition, the rubber composition may be vulcanized in contact with the softened polycarbonate plastics material or may be prevulcanized or partially prevulcanized prior to contact with the plastics material. The rubber may be a butadiene-acrylonitrile, polyepichlorohydrin or acrylate rubber having pendant polar groups. The materials may be bonded by subjecting them to heat and pressure in a mould.
Patent GB-813675-A (GB)
Title: Apparatus for progressively reducing the diameter of tubular or hollow cylindrical bodies
IPC: B21D41/04
Filed: 1957-09-04
Abstract: 813,675. Spinning. SCHMIDT, W., and HORMANN, E. Sept. 4, 1957 [Sept. 6, 1956], No. 27954/57. Class 83 (4). Apparatus for progressively reducing, by means of a radially or radially and axially movable deforming roll, the diameter of tubes or hollow cylindrical bodies whilst heated by induction heating is characterized in that the inductor is constructed so that the part thereof that induces the effective heat in the work lies immediately adjacent the peripheral region of deformation and the inductor is shaped partly to surround the work remote from the deforming roll. A tube 1 is held in a gripper 2 and rotated and the deforming roll 3 is moved towards the tube and also axially thereof to taper the tube as shown in Fig. 1. The inductor 6 comprises a heat-inducing part 7 and magnetic yokes 9. Immediately behind the inductor is a bearing support 13. Back rolls 14 and 15 may be provided (Fig. 4) and the inductor shaped to embrace these rolls. The entire assembly is advanced in the axial direction and the tube reaches maximum temperature at the point where it emerges from the inductor. The deformation may be continued to form a conical tube or one end may be completely closed as is required in the making of cylinder bottoms or necks. In another embodiment the heating and deforming assembly remains stationary and the tube with its rotating gripper is advanced axially.
Patent GB-503852-A (GB)
Title: Improvements in or relating to electron discharge devices for translating mechanical movements into electrical variations
IPC: H01J21/08
Filed: 1937-10-14
Abstract: 503,852. Microphones; gramophone pick-ups. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BRETT, G. F. Oct. 14, 1937, No. 27995. [Class 40 (iv)] [Also in Groups XL and XXXVIII] An electron - discharge device for translating mechanical movements into electrical variations comprises a gas-tight envelope 1, an electron gun system adapted to project a defined jet or beam of electrons in a predetermined direction, a first collector electrode 7 in the path of the jet or beam and a second collector electrode 8 which is movable with respect to the first electrode and is so arranged to intercept the electron flow to the first collector electrode to an extent which varies with its position. The electron gun system comprises a rectilinear cathode 2, a control electrode 3, an accelerator anode 4 and a screen and suppressor-electrode 5, these members being provided with aligned slots 3a, 4a, 5a. The collector electrode 8 is attached by a wire 8a to a flexible diaphragm 6 which forms part of the envelope 1 and which may be directly or indirectly vibrated by sound waves. The device may be used as a gramophone pick-up by a connection between the diaphragm 6 and a needle engaging a record. The second collector electrode may be. connected to an electrostatic or electromagnetic link controlled by the primary source of mechanical or acoustical vibration.
Patent GB-1473642-A (GB)
Title: Backing plate for a picture frame
IPC: A47G1/14
Filed: 1974-05-03
Abstract: 1473642 Supporting pictures; picture frames; hanging pictures DENBIGH MOULDERS Ltd 3 May 1974 [13 June 1973] 28047/73 Headings A4H A4U and A4X A backing plate for a picture frame is supported by struts 12, 13 engaging in slots 11 in the plate, the plate and struts being moulded as a single piece with the struts 12, 13connected to parts 2-5 of the plate by fine plastics threads. The slots may extend right through the plate, or they may be formed only in the surface thereof. Projections 14 enable the frame to be hung on a pin.
Patent GB-534746-A (GB)
Title: Improvements in or relating to the preparation of salts or esters of 2-keto aldonic acids
IPC: C07H7/027
Filed: 1939-10-17
Abstract: 534,746. 2-keto-aldonic acids. PFIZER & CO., C. Oct. 17, 1939, Nos. 28060, 28061 and 28062. Convention dates, Dec. 24, 1938, Aug. 5, 1939 and Aug. 5, 1939. [Class 2 (iii] Salts and esters of 2-keto-aldonic acids are made by the oxidation of aldonic acids or their lactones, esters, or salts by soluble chlorates in the presence of vanadium catalysts in a mildly acid medium. In examples (1) sodium-d-gluconate and sodium chlorate' are dissolved in water and acetic acid and vanadium oxide are added, the mixture being allowed to stand for 40 hours ; vanadium oxide is filtered off and the remainder of the vanadium is removed as ferrocyanide ; methyl alcohol and hydrogen chloride are added to produce methyl-2-keto-gluconate ; (2) sodium 2-ketol-lidonate which is identical with sodium-2-ketol-gulonate is made similarly from sodium l-idonate, using phosphoric acid instead of acetic ; this salt may be converted into ascorbic acid by adding sulphuric acid, evaporating to dryness, adding methyl alcohol, filtering, and refluxing with hydrogen chloride to form the methyl ester which is suspended in methyl alcohol, heated with sodium methylate and finally treated with sulphuric acid ; (3) sodiuml-gulonate is treated to produce sodium-2-ketogulonate, sodium acetate being used with the acetic acid ; (4) sodium-d-galactonate is treated to produce sodium 2-keto-d-galactonate, using phosphoric acid and sodium di-hydrogen phosphate the product is converted to the brucine salt; (6) the 8-lactone of gluconic acid is treated to produce the methyl ester of 2-keto-gluconic acid, using phosphoric acid ; (8) l-galactonic acid is treated to produce the methyl ester of 2-keto-galactonic acid, using phosphoric acid ; (10) the r-lactone of dmannonic acid is dissolved in methyl alcohol containing sodium chlorate and phosphoric acid, heated under reflux and shaken with vanadium pentoxide for four days, yielding the methyl ester of 2-keto-gluconic acid.
Patent GB-603609-A (GB)
Title: A new or improved nursery cabinet
IPC: A47B67/00
Filed: 1945-10-25
Abstract: 603,609. Cabinets fitted with baths. MARTIN, A., MALE, H., and COLLINS, S. Oct. 25, 1945, Nos. 28226/45 and 20538/46. [Class 52 (iii)] [Also in Group I] A cabinet 1 is internally subdivided into two compartments in one of which a child's bath 23 is stored in up-ended position and is withdrawable for use on a frame pivoted to the cabinet structure, the bath being adjustable longitudinally of the frame to facilitate emptying through a drain plug. The supporting-frame 15 may be formed as a door-panel or as a folding stand which may if desired be detached from the cabinet. Drawers, shelves, racks, garmenthangers and receptacles are preferably provided in the cabinet.
Patent GB-173852-A (GB)
Title: Improvements in tool-holders for gear-shaping and like machines
IPC: B23F23/12
Filed: 1920-10-05
Abstract: 173,852. Dartois, V. G. Oct. 5, 1920. Shaping.-A tool-holder for a gear-cutting machine is provided with improved means for withdrawing the tools from the work on the non- cutting stroke. The tool 9 is secured in a block 7 attached to a vertical slide 5 on the reciprocating carrier 3. One arm of a bell-crank lever 11, pivoted at 17 to the slide 3, is provided with a cylindrical head 15 engaging a block adjustably secured to the vertical tool slide, while the other arm is connected to a link 21 through which the tool-carrier is reciprocated. The bell-crank lever has limited angular movement between abutments A, B, so that the tool is withdrawn from the work before the commencement of the return stroke and restored before the cutting-stroke.
Patent GB-1561422-A (GB)
Title: Ester of 1 - phenyl - 2-nitro - 1,o - propanediol and their plant protecting and fungicidal compositions
IPC: C07C205/40
Filed: 1977-07-06
Abstract: The crop protection product contains, as active substance, one or more nitroalkanol derivatives of the formula I. R has the meaning given in patent claim 1. The crop protection product is obtained by preparing the compound of the formula I by acylating 1-phenyl-2-nitro-1,3-propanediol and mixing the active substance with a formulation auxiliary. The acylation is carried out under mild conditions. <IMAGE>
Patent GB-667805-A (GB)
Title: An improved rick lifter device for attachment to a tractor
IPC: A01D87/08
Filed: 1949-11-05
Abstract: 667,805. Hay-rakes. DICKIE, J. Oct. 31, 1950 [Nov. 5, 1949], No. 28380/49. Class 6(iii) [Also in Group XXX] In a rick - lifting attachment for a tractor, the tubular tines b, of the lifting fork taper towards the points to facilitate discharge. The tines are secured to a tubular cross-member a which is pivoted to the normal draft links g and hydraulic lifting arms j at the rear of a tractor y, rigidly connected vertical members c and d, secured respectively to member a and the usual links k, being provided to maintain the fork substantially horizontal during lifting. The rick is transported on the fork and lowered at the new location whereupon links k are temporarily disconnected from member d, by removal of a bolt (not shown) from holes x and, on further lifting by arms j together with forward movement of the tractor, discharge is effected. A guide plate m slidably engages member c and serves to steady the linkage. According to a modification described in the Provisional Specification only, the links k are secured to a resilient anchor on the tractor.
Patent GB-158997-A (GB)
Title: Improvements in or relating to electrical heating devices
IPC: F24H1/10
Filed: 1919-11-15
Abstract: 158,997. Smith, M. S. Parnell-. Nov. 15, 1919. Generating by electricity. - A heating-resistance is enclosed in a chamber of copper, brass, or other heat-conducting material, the walls of which may be corrugated, which chamber is filled with inert gas such as nitrogen or argon and enclosed by a casing constituting a jacket. In the flow heater shown, nickelchromium or other resistance wire 4 is wound on rods 3 of fire-clay, porcelain, &c. held between rings 2 of similar material in a copper or other metal cylinder 1. The cylinder is filled with inert gas through a cock 9, a plug 7 being removed to allow escape of air. The cylinder 1 is enclosed in an outer jacket 10, leaving an annular space through which liquid to be heated passes from the inlet 11 to the outlet 12. Terminals 15, 16 pass through an insulating-block 17. The tap controlling the supply of liquid may be combined with a knife switch. Steam-generators may be similarly constructed.
Patent GB-174989-A (GB)
Title: Improvements in railway and tramway sleepers
IPC: E01B3/32
Filed: 1920-10-07
Abstract: 174,989. Baker, R. Oct. 7, 1920. Sleepers, composite. - Reinforced-concrete sleepers are cruciform in section at the centre, Fig. 5, and rectangular in section at the rail seats a, Fig. 9. The rail seats are recessed to receive parallel or rectangular wood or other blocks, and are cast at an angle to suit the inclination of the rails. The ends of the sleepers may be tapered at the sides and on the upper surface, while a step may be provided on the under surface. The sleeper is reinforced by bars g, h, j, k throughout the sleeper, and by additional bars m at the rail seats, each bar having. looped ends.
Patent GB-843661-A (GB)
Title: Improvements in the control of steam temperature of boiler plants
IPC: F22G5/16
Filed: 1957-09-10
Abstract: 843,661. Regulating steam temperature in boilers. WALTHER & CIE A.G. Sept. 10, 1957 [Sept. 21, 1956], No. 28516/57. Class 123(3) In a forced-flow, once-through boiler feedwater is supplied by a pump 6 through preheaters 7, 8, 9 to a heat exchanger 10 wherein it comes into indirect contact with steam returning to the boiler through a line 16<SP>1</SP> from the first stage of a turbine for reheating in a reheater 17. The water is partially evaporated in the heat exchanger and flows therefrom through a final evaporator 15 and a superheater 12 to the turbine. The flow of feedwater through the heat exchanger is not controlled and hence depends on boiler load, the amount of attemperation of the steam to be reheated thus being automatically related to load. A by-pass controlled by a valve 14 is provided, however, for fine adjustment of reheat temperature. In the form shown in Fig. 2, the heat exchanger consists of a series of pipes 23 connected between headers 20, 21 which are also connected by the by-pass 22 containing the valve 14. Within each pipe 23 is a coaxial pipe carrying the attemperating feedwater flow. Shut-off valves 24...26 are provided to enable each pipe 23 to be removed for cleaning or replacement without unduly affecting the operation of the unit. In another form, the heat exchanger consists of an upright casing through which the feedwater flows and which contains a bank of nested U-tubes for the steam flow.
Patent GB-153467-A (GB)
Title: Improvements in safety controlling gear for electrically propelled vehicles
IPC: B60K1/00
Filed: 1919-11-19
Abstract: 153,467. Garrett & Sons, R., and Garrett, F. Nov. 19, 1919. Addition to 103,617. Interlocking and guarding against wrong movements; controlling apparatus, arrangements of hand, foot, and transmission gear in conjunction with.-According to the parent Specification, whenever the hand or foot brake lever is operated, the controller shaft is declutched from its operating-handle, returns automatically to its neutral position, and cannot be operated again until the brakes have been released. The present invention consists in providing an independent device for rotating the controller shaft, the object being that this may be operated if necessary, to prevent the vehicle from running backwards, during the time interval between the release of the brakes and the connecting-up of the controller-shaft parts. The pedal C can rotate the controller-shaft D in either direction by means of two spring- pressed rods A which can act on projections E on the shaft.
Patent GB-408999-A (GB)
Title: Improvements in or relating to otter boards for use with trawl nets
IPC: A01K73/045
Filed: 1932-10-14
Abstract: 408,999. Trawling. ROBINSON, L. 22, Great Winchester Street, London. Oct. 14, 1932, No. 28752. [Class 48.] Non-buoyant trawl boards are attached close to the net and given an upward lift by connecting the tow-rope above the centre of the board. The tow-rope is attached to brackets F, f<1>, and the distance of the board from the sea bottom is maintained by a weight c. In a variation, the distance is controlled by attaching the tow-rope to a bent lever G and the net to a lever H. The levers G, H are coupled together by a link g<3> so that as the board rises the point of tow will be raised and the inclination of the board decreased. In another variation the links g<2>, g<3> are parallel to the board. In a further variation the distance is controlled by a weighted shutter.
Patent GB-183765-A (GB)
Title: Improvements in resilient tyred wheels
IPC: B60C7/14
Filed: 1921-10-29
Abstract: 183,765. Jones, J. T. Oct. 29, 1921. Metallic spring bodies and cores.-One or more pairs of spring plates C, C<2> bolted to the sides of a wide felloe A are incurved to support a rubber &c. tread B. The outer edges of the plate are beaded or reinforced by wires c<2> and recessed into the tread B, rings f being fitted to or formed on the latter to exclude dirt &c.
Patent GB-456030-A (GB)
Title: Improvements in electrostatic condensers
IPC: H01G4/22
Filed: 1935-10-18
Abstract: 456,030. Condensers. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Bosch Akt.-Ges., R. ; 4, Militarstrasse, Stuttgart, Germany) Oct. 18, 1935, No. 28792. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 4, 1936.] [Class 38 (ii)] The metallic armatures of a condenser are separated by porous fibrous material, the " pore space " of which exceeds 40 per cent of the total volume of the spacer, the interstices having been filled by an additional dielectric whose dielectric constant is greater than that of the fibrous material, for example, above 5À5. Chlorinated naphthalenes and resinic acid nitrile are mentioned.
Patent GB-632294-A (GB)
Title: Improvements in or relating to apparatus for transmitting and receiving compressional wave energy
IPC: G10K11/34
Filed: 1943-06-29
Abstract: 632,294. Echo-sounding apparatus. SUBMARINE SIGNAL CO. June 29, 1943, No. 28862/45. Convention date, July 22, 1939. Divided out of 632,285. [Class 118 (ii)] Echo-sounding apparatus has different directive patterns for transmission and reception, the main maxima being in the same direction but the side lobes being in different directions for the two patterns. The apparatus used may comprise electrodynamically-operated concentric tubes or magnetostrictively-operated elements arranged in concentric rings, the two patterns being obtained by exciting the radiating surface uniformly for transmission and making the response vary across the surface during reception, e.g. in accordance with the formula set out in Specification 632,285, and in the manner set out in Specification 632,284. In the circuit arrangment shown, when key 44 is operated for transmission, relay 46 is energized to connect the A.C. source to transformer winding 24 and relay 41 released so that exciter windings 9 ... 12 are all fed in series. During reception, relay 47 is released to connect winding 24 to receiving apparatus 53 and relay 41 operated to connect coils 9 ... 12 to different tappings on winding 26. In another arrangement, Fig. 8 (not shown), the position of the side lobes is varied during the transmission of a signal pulse by connecting coils 9 ... 12 to tappings on a motor-driven potentiometer connected across winding 26. Specifications 628,524 and 641,640, [both in Group XXXIX], also are referred to.
Patent GB-741404-A (GB)
Title: Improvements in or relating to trolleys
Inventor: BROWNE STANLEY ALFRED
IPC: B62B3/04
Filed: 1953-10-20
Abstract: 741,404. Trolleys. BROWNE & SON (SHEET METAL MANUFACTURERS), Ltd. Aug. 24, 1954 [Oct. 20, 1953], No. 28922/53. Class 108 (1). A food trolley is provided with a body which is suspended on the frame by a cross rod 5. When negotiating slopes the body oscillations are damped by a fluted piston working in an oil cylinder 8. A slidable weight 15 may be moved along the body on a rail 16 to compensate for unequal loading, and may be locked in position by a lever 17. A spring-loaded catch may also be provided to lock the body to the frame, and the body may be heat insulated and electrically heated.
Patent GB-504043-A (GB)
Title: Improvements in winding machines for winding yarn or thread
IPC: B65H54/50
Filed: 1937-10-23
Abstract: 504,043. Winding yarn &c. HOLT, Ltd., T., and HOLT, R. Oct. 23, 1937, No. 29004. [Class 120 (ii)] A split-drum yarn-winding machine has stationary yarn guiding components located within the drum on opposite sides of the plane of rotation of the centrally disposed arms supporting the drum and the yarn traversing slit in the drum is formed on opposite sides at diametrically-opposed wide parts of the slit with cam surfaces whichdivert the yarn alternately from one guiding component to the other during the rotation of the drum. As shown in Figs. 1 and 2, the yarn guiding components consist of two forks 22, 23, held by 'arms 20, 21 attached to the brackets 14. The guide forks arc disposed at each side of the centrally disposed supporting aims 11 of the 'drum 10, and in a plane radial to the axle, inclined at 45‹ to the horizontal. The gap between the pairs of fork ends has just sufficient clearance to allow the passage of the arms 11 and the ends of the forks are curved slightly outward. The oblique traversing slit 24 is formed with wide parts presenting cam surfaces 25<1> at diametrically opposite points, one in each wall of the slit wall and the motion of the yarn in the guides is in the form of an elongated 8, the yarn being lifted up by the cam surfaces each time it passes over the gap between the guide forks.
Patent GB-464386-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R9/08
Filed: 1936-10-26
Abstract: 464,386. Microphones. ELECTRICAL RESEARCH PRODUCTS, Inc. Oct. 26, 1936, No. 29041. Convention date, July 11. [Class 40 (iv)] A microphone comprises a magnet structure defining a plurality of air gaps located in angular relationship and conductive ribbon diaphragm means disposed in the air gaps and lying in one plane or in substantially the same plane. The diaphragm means may be a single ribbon in the shape of a cross, or two adjacent ribbons crossing each other at right-angles. As shown in Fig. 1 four U-shaped permanent magnets 21 are assembled with two sets of like poles in contact and two pairs of unlike poles separated by blocks 22 of non-magnetic material, e.g. aluminium, secured to an annular supporting plate 23. The magnets carry polepieces 26, 27, 28, 29 forming gaps 31, 32 in which are located ribbons 33, 34 lying in planes spaced at a small distance and supported in blocks 35 of resilient material located in recesses 36 of members 37 secured to the polepieces. In a modification, Fig. 7, the end of each ribbon is supported in a resilient member 39 held in a recess 40 at the apex of an angular or wish-bone spring H secured to a support 42 mounted on the polepiece. The ends of the ribbons 33, 34 are connected in series to a transformer, Fig. 4 (not shown). In a modified arrangement, Figs. 9 to 11 (not shown) and Fig. 13 (not shown), the ribbons form a unitary member in the shape of a cross and, as indicated in Fig. 12, 'the ends of the ribbons 33, 34 are connected to two primary windings 47, 48 of a transformer 46. In a further modification, Fig. 14, the ribbon 55 is circular and the outer polepiece 63 has gaps 62 through which pass corrugated supporting strips 58 having slits 65 covered with silktissue. The ends 56 of the ribbon are brought out to terminals 57, and a space 66 between the conductors is covered with silk tissue. The ribbon diaphragm may be in the form of a hollow square.
Patent GB-347087-A (GB)
Title: Improvements relating to dynamo-electric machinery
IPC: H02K9/00
Filed: 1930-09-29
Abstract: 347,087. Dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, CHITTENDEN, J. P., South Lodge, Westfield, Rugby, and OSBORN, J. A., 50, Styvechale Avenue, Earlsdon, Coventry. Sept. 29, 1930, No. 29102. Drawings to Specification. [Class 35.] Dynamos, cooling; exciting.-The cooling fan and exciter of a high-speed generator are both driven through the same reduction gearing from the generator shaft.