baber/WOPTO huggingface dataset:
Patent GB-333372-A (GB)
Title: Improvements in, or relating to, the insulators of electric fuses and to other electrical insulators
IPC: H01H85/20
Filed: 1929-07-26
Abstract: 333,372. Simplex Conduits, Ltd., and McLoughlin, H. F. July 26, 1929. Fusible cut-outs; couplings.-Relates to fusebases d or other recessed or box-like insulators which have a slot a extending through the end wall and through the bottom of the base, enabling a conductor to be brought in either at the end or from underneath. In connecting the internal fuse-terminal or the like b with a bus-bar e, a U-shaped conducting-strap f, which may be the sole electric connection or may be additional to a through screw g, is introduced through the aperture a, the middle part of the strap lying in that part of the aperture which is formed in the bottom of the fuse-base and being shielded thereby.
Patent GB-934474-A (GB)
Title: Vending machine
IPC: G07F11/42
Filed: 1962-06-15
Abstract: 934,474. Coin-freed apparatus; dispensing articles. NATIONAL VENDORS Inc. June 15, 1962 [Aug. 23, 1961], No. 23096/62. Classes 27 and 116. A vending machine comprises a plurality of shelves 17 in a cabinet, each shelf having a helix 21 which extends lengthwise in a trough 19 and receives articles A to be vended between its convolutions, the helix being rotatable in one direction to feed the articles in a direction towards a discharge end of the shelf whereat they are discharged one-by-one, and means mounting the shelves in the cabinet for movement between a vending position and a loading position. Each shelf is pivotally mounted on retractable pins 29 at the rear of the cabinet and located in a vending position by latch member 49 engaging toothed upright members 47 at the front of the cabinet. Disengagement of the latches and retraction of the pins permits the shelves to move from a horizontal vending position to a lower position in which loading of the articles between the convolutions of the springs is facilitated. The helix 21 for each shelf is formed by a coil spring which, at one end, extends to a discharge space 77 leading to a shoot 79 and access opening 83, and, at the other end, is secured to a member 65 mounted on the shaft 63 of a gear-box 61 driven from an electric motor M. The other end of the shaft 63 carries a cam 71 and co-operating with a switch CS to control the motor so that when a push-button associated with that motor is depressed, the spring is rotated once to discharge an article into the space 77. Different shelves may carry articles of different value, members 53 being adjustable to accommodate articles of different size, and an electrical circuit is provided responsive to coins of low, medium and high value to energize respective circuits associated with the motors on the shelves carrying the low, medium and high valued articles. After insertion of a coin of the desired value, the push-button controlling the motor associated with the shelf carrying articles of corresponding value is depressed so that the motor rotates the spring once to discharge the article. Each shelf has a slot 125 through which extends the arm 123 of a switch, the arm normally being held down by the weight of an article but lifting when the last article on the shelf has been discharged to operate a light indicating the machine is empty and to prevent further operation of the machine. The shelves are adjustable to different vertical positions in the cabinet.
Patent GB-760014-A (GB)
Title: Improvements in or relating to electric accumulators
IPC: H01M10/34
Filed: 1953-08-21
Abstract: 760,014. Batteries. ACCUMULATORENFABRIK AKT.-GES. Aug. 21, 1953 [Oct. 25, 1952], No. 23151/53. Class 53. A permanently sealed alkaline accumulator has thin electrodes having such a large surface area that with the normal charging current the amount of oxygen released from the positive electrode per unit area is sufficiently small to cause it to dissolve in the electrolyte and migrate to the surface of the negative electrode where it is absorbed. Any small amount of oxygen which cannot dissolve in the electrolyte escapes into the space above the electrolyte where it is absorbed by the exposed parts of the negative electrode. No hydrogen is evolved from the negative electrode. The electrodes are separated by thin absorbent separators which hold the electrolyte and the positive and negative electrodes are of substantially the same capacity.
Patent GB-700260-A (GB)
Title: Improvements in portable buildings
IPC: E04B1/344
Filed: 1951-10-05
Abstract: 700,260. Portable buildings. BIRKIN, B. G. Oct. 6, 1952 [Oct. 5, 1951], No. 23196/51. Class 20 (1) A market stall or other collapsible building is made up of two horizontal rods or tubes A forming eaves members with a rod or tube a welded at or near each end forming supporting legs and struts b pivoted on the ends of rods A and in pairs to a ridge pole or tube B to form the roof frame. Flexible supports such as wires c extend between the eaves rods A and tubes or rods C between the legs support shelves c' forming counters. The legs and roof struts are folded to lie in parallel planes for storage.
Patent GB-1389265-A (GB)
Title: Chair structure and element therefor
IPC: A47C5/12
Filed: 1972-05-17
Abstract: 1389265 Chairs L CORBETTA 17 May 1972 [25 May 1971] 23206/72 Heading A4H A chair comprises two identical side frames, e.g. of plastics, each frame defining leg members 2 connected by a cross-member 3 and an upstanding back member 4, each frame having on at least the inwardly facing side a continuous groove 8 extending at least along members 3, 4 for receiving the edges of a seat panel and a back panel in the regions of members 3 and 4. The panels may be secured by screws passed through holes moulded in the base 6 of the groove and the sides of the groove diverge outwardly to facilitate insertion of the panels.
Patent GB-686519-A (GB)
Title: Improvements in or relating to the application of glass coatings to metals
IPC: C03C27/04
Filed: 1951-10-05
Abstract: 686,519. Coating surfaces with glass. SHEPHERD, G. R. (Westinghouse Electric International Co.). Oct. 5, 1951, No. 23229/51. Drawings to Specification. Class 56. [Also in Group XXXVI] Molybdenum or tungsten surfaces, particularly of electric leading-in wires for evacuated devices, are protected against oxidation by applying thereto powdered glass (e.g. in a suspension) having a compatible coefficient of expansion, and firing in a neutral atmosphere to fuse the glass thereto as a protective enamel coating. A glass member (e.g. a glass bead for sealing in) is subsequently fused, in air, on to an intermediate portion only of the protective enamel coating, or an intermediate portion of the coating itself may be used for the sealing in.
Patent GB-406284-A (GB)
Title: Manufacture of alkyl fluorides
IPC: C07C17/08
Filed: 1932-08-19
Abstract: Alkyl fluorides are prepared by reacting olefinic hydrocarbons with hydrogen fluoride under pressure, preferably in presence of a catalyst comprising a fluoride of a di- or polyvalent metal which may be suspended or dissolved in an inert diluent.  Pressures of 10--500 atmospheres may be employed.  According to the example, propyl fluoride is obtained when equimolecular proportions of propylene and hydrogen fluoride are continuously passed through a lead-lined steel reaction chamber fitted with ebonite stop-cocks and containing activated charcoal which has been impregnated with zinc fluoride solution and dried; the gaseous mixture is introduced under pressure of about 50 atmospheres and the catalyst maintained at a temperature of about 250 DEG  C.; the propyl fluoride is condensed in iron or copper vessels.  Other catalysts specified are the fluorides of cobalt, manganese, iron and aluminium.  In the case of the preparation of higher alkyl fluorides, e.g. secondary butyl fluoride from butylene and hydrogen fluoride, the use of a catalyst may be dispensed with.  The process may also be effected in the liquid phase in an autoclave, a liquid such as hexane being present; the pump, autoclave and all parts of the apparatus exposed to high pressure may then be made of iron-chromium-nickel alloy.  In this way, propyl fluoride is obtained from propylene and hydrogen fluoride at a pressure of 75 atmospheres and a temperature of 60 DEG  C.  Reference is made to the production of ethyl fluoride from ethylene and hydrogen fluoride in the gaseous phase, using a pressure of 50 atmospheres, a temperature above 100 DEG  C., and a zinc fluoride catalyst.
Patent GB-298627-A (GB)
Title: Improvements in medical syringes
IPC: A61M3/02
Filed: 1928-08-13
Abstract: 298,627. Friedlaender Gummiwarenfabrik Ges., J., (Assignees of Sandig, E.). Oct. 14, 1927, [Convention date]. Addition to 296,370. Syringes and like appliances; stands and like supports.- Surgical douches according to the parent Specification i n which a flexible container b for the liquid is carried by a wrapper or cover a, a pocket c for the douche tube f being provided, are modified by forming the container b integral with the wrapper a.
Patent GB-1303855-A (GB)
IPC: B01J19/28
Filed: 1970-05-14
Abstract: 1303855 Gas treatment of workpieces; gas purging workpieces INTERNATIONAL BUSINESS MACHINES CORP 14 May 1970 [19 May 1969] 23366/70 Headings B1F and B1M As semiconductor wafer reaction pieces move to the left after being treated with reaction gas from pipe 58, Fig. 3, the reaction gas is purged from the pieces by gas from pipe 54, prior to further treatment with reaction gas on the left.
Patent GB-461641-A (GB)
Title: Improvements in or relating to the purification and granulation of pentaerythritol tetranitrate
IPC: C06B25/32
Filed: 1935-08-20
Abstract: Pentaerythritol tetranitrate is precipitated in granular form from its concentrated solution in acetone or media rich in acetone by dilution of the solution at or near its boiling point with water, the concentration of acetone being at no time less than 25 per cent, and the final concentration preferably lying between 33 and 50 per cent by weight of the total solution.  An acetone solution of the nitrate may be added slowly and simultaneously with water to a bath of aqueous acetone maintained at or near its boiling point.  The distilled acetone may be re-used as a solvent. Precipitation as coarse granules is favoured by small difference between the solvent power of the two solutions, slow admixture, and high temperature. The solvent liquor may contain, e.g. up to 10 per cent of water when a precipitating bath of low solvent power is used.  The crude water-washed nitrate may, alternatively, be stirred with acetone to remove most of the water and then treated in an extraction apparatus comprising boiler, reflux, and jacketed extraction vessel, constructed of chrome iron alloy or other resistant material if acid is present.  The aqueous acetone washings, with the addition if necessary of dry acetone, are run into the steam-heated boiler so that acetone distils, condenses and extracts the nitrate in the extractor, the solution then flowing back to the boiler where precipitation occurs.  Agitation of the boiler contents assists the granulation.  The nitrate remaining in solution may be recovered by the introduction of live steam.  In one example, the crude nitrate is stirred with acetone and placed in an extraction filter, the washings together with further acetone, including the washings from a previous batch, and the gummy by-product obtained by dilution of the refuse nitrating acid being run into the boiler.  Sodium carbonate is added, and the boiler heated indirectly by hot water and directly by live steam.  The condenser may be so run that cold acetone is used in the extraction until all residual moisture is removed, the extractor then being heated.  The boiler contents are cooled and the granular nitrate filtered off.
Patent GB-754611-A (GB)
Title: Improvements in or relating to television pick-up apparatus
IPC: H04N5/18
Filed: 1954-08-12
Abstract: 754,611. Television. FERNSEH GES. Aug. 12, 1954 [Aug. 14, 1953], No. 23433/54. Class 40 (3). Relates to television pick-up apparatus employing a pick-up tube in which the storage target is controlled by a flooding source of electrons whereby the signal generated during flyback has a value in the neighbourhood of picture white. In such apparatus, if the generated signal is passed through a variable-gain A.C.-coupled amplifier and then clamped at a constant level during flyback, variation of the amplifier gain results in a variation in the signal black level. According to one aspect of the invention, Fig. 3, this defect is overcome by controlling the clamping level in accordance with the gain of the amplifier. The generated signal appears at terminal 11 and passes through a variable gain amplifier 13, 14, 15 to an output stage 16 at the grid of which the signal is clamped during the flyback interval by means of a conventional four-diode clamp circuit 17-20 pulsed on at terminals 26 and 27. The first stage 13 of the amplifier is a variable-mu valve controlled by variable bias source 12 and is operated in conditions such that the slope is proportional to the anode current. The voltage drop across the cathode resistor 22 is smoothed by filters 23, 24 and is then employed as the reference voltage at point 21 in the clamp circuit. According to another aspect of the invention, Figs. 1 and 2 (not shown), the white signal appearing during flyback is offset by a pulse of opposite polarity and of amplitude equal to the difference between picture white and black. This pulse, which is made slightly narrower than the white signal, is added to the generated signal at the input of the variable gain amplifier by means of a cathode-follower stage. Preferably its amplitude is controlled as a function of the electron discharge from the flooding source in the pick-up tube.
Patent GB-1009578-A (GB)
Title: Fluid grinding mills
IPC: B02C19/06
Filed: 1964-06-05
Abstract: 1,009,578. Jet pulverizers. HELME PRODUCTS Inc. June 5, 1964 [June 5, 1963], No. 23437/64. Heading B2A. In a jet pulverizer comprising an impact grinding chamber 56 communicating with a classification chamber 44, recesses 13, 21 in the chamber are provided with removable linings. The recess 13 has a rear liner plate 34, a peripheral liner 36 and a front liner plate. The recess 21 has liner blocks 49, 54, 58, 61 and 64, the blocks 54, 61 opening into offtake and return leg passages 46, 47 formed by a deflector 38. The liner blocks in the recess 21 are held against endwise movement by plates 68, 71. The mill has a front cover plate 84. Cover plate 84 and the front liner plate are preferably transparent plastic. The remaining liners may be made of P.T.F.E. Material to be pulverized is supplied by a hopper 74 and pressure fluid, e.g. air, is supplied through adjustable secondary and primary nozzles 78, 79 respectively. In a modification, the hopper is replaced by a rigid tube connected by flexible tubing to a pipette. Specification 765,257 is referred to.
Patent GB-826411-A (GB)
Title: Improvements in or relating to mine arch supports
IPC: E21D11/18
Filed: 1956-07-30
Abstract: 826,411. Mine arches. WESTFALENHUTTE A. G. July 30, 1956 [Sept. 7, 1955], No. 23483/56. Class 20(2) A foot of a mine arch 10 is supported in a casing 9 by interengaging wedges 1, 3, cavities 12, 6 being provided respectively in the inclined meeting faces of the wedges 1, 3, the cavities 6 in the outerlying edges 3 accommodating eccentric parts 11 having lugs 5 whose ends engage in the corresponding cavities 12 of the inner wedges and in a cavity 20 in a foot member 4. As the arch 10 is loaded it descends into the casing 9, the lugs 5 being turned so that the eccentric parts 11 urge the inner wedges 1 against the web of the arch 10 and the outer wedge 3 against the inner wall of the outer casing 9. The web of the I-section arch rests upon the foot member 4 which is connected by a spring band 2 to the inner wedges 3 to allow the use of arches of different sections. The lowering of the section is halted by a stop member 8 on the floor of the casing 9 which narrows slightly towards its lower end. Alternatively the lowering may be halted by introducing iron bars through slits 15 in the sides of the casing. In a modification, Fig. 4 (not shown) the invention is shown adapted to a channel-section arch.
Patent GB-249030-A (GB)
Title: Improvements in safety devices for ladders
IPC: E06C7/48
Filed: 1925-09-21
Abstract: 249,030. Seaman, F. A. Sept. 21, 1925. Ladders.-A safety device for a ladder to prevent slipping comprises two brackets 6, fixed one to each upright of the ladder at its upper end and extending rearwardly and outwardly from the ladder to the wall. Each bracket has abutments 3, 4 for fitting against the side and rear of the upright and is clamped to the upright by an angled adjusting member 9 secured by nuts 11. Each bracket may form a support for a bucket 16.
Patent GB-713296-A (GB)
Title: Improvements in or relating to radio receiving apparatus
IPC: H03D1/10
Filed: 1952-09-22
Abstract: 713,296. Superheterodyne circuits. GIALLULY, E. M. S. DE. Sept. 22, 1952 [Sept. 28, 1951], No. 23741/52. Classes 40 (5) and 40 (6) The intermediate-frequency amplifier includes means for producing from the I.F. signal a number of separate signals evenly displaced in phase through a cycle. These signals are separately amplified and detected by a corresponding number of diode detectors having a common load resistance in which the signals are recombined. The signals may alternatively be recombined before detection and re-separated at the detectors. An embodiment comprises a push-pull IF. amplifier 13, 14 feeding a push-pull detector 21, 22 having the common load resistance 23.
Patent GB-1186773-A (GB)
Title: Device for Grasping the Thread Commencement of a Cop
Inventor: REINERS WALTER
IPC: B65H67/08
Filed: 1967-05-23
Abstract: 1,186,773. Winding yarns. W. REINERS. 23 May, 1967 [27 May, 1966], No. 23808/67. Addition to 1,142,955. Heading D1J. In a device by which the thread commencement, not fixed in an underwinding, of a cop to be fed to a winder can be grasped by means of a suction nozzle which is situated within a falling or sliding path of the cop and the mouth of which nozzle is constructed in the form of an annular gap 3 surrounding the cop, the cross-section of the suction passage 4 surrounding the gap 3 is constant and at the position where a suction conduit 10 opens into the passage 4 there is arranged a member 11 for the setting of the direction of flow of the suction air current. In one embodiment, Fig. 1, the passage 4 surrounds the gap 3 in the form of a loop. The member 11 is in the form of a circular segment secured beneath a circular disc 12 pivotable by a lever 13 between two positions so that the suction air current flows in the direction either of the arrow 5 or of the arrow 5'. In a modification (not shown), the conduit 10 extends perpendicularly to the passage 4 immediately beneath the pivot 13b of the member 11. In another embodiment. Figs. 2 and 3, the passage 4 extends concentrically around the gap 3 and is formed by two parts 41, 43 the upper 41 is rotatably mounted in a circular groove 42 of the lower part 43. The setting member 44 is mounted on the lid and is movable between the two positions shown. In modifications (not shown), the member 44 is secured to the part 43 instead of the part 41 or the member 44 is an. independent part in the opening of the passage 4 into the conduit 10. Barbed needles or pins as described in the parent specification may be provided.
Patent GB-765837-A (GB)
Title: Improvements in or relating to centralised lubrication systems
IPC: F16N7/30
Filed: 1952-09-23
Abstract: 765,837. Lubricating systems. VOGEL, C., [trading as VOGEL KOMM.-GES., W.]. Sept. 23, 1952 [Aug. 15, 1952], No. 23828/52. Class 12 (3). In a centralized lubrication system a source of pressure medium other t' an the lubricant is arranged to operate a plurality of fluid-pressure operated pumps respectively connected with different points or sets of points to be lubricated, an automatically or manually actuated control valve being provided for admitting pulses of fluid pressure to the pumps, and each pump being arranged in the immediate vicinity of, or having attached to it, one of a plurality of reservoirs for lubricant. In the arrangement shown in Fig. 1, a conduit 2 connected to a source of fluid pressure leads to a valve 3 which may be opened manually by pressing a button 10, or automatically by means of an electromagnet 11, so that pressure fluid flows through a conduit 4 to a number of pumps 5a (one pump only shown) each pump being provided in or closely adjacent to a reservoir 5 for lubricant. The pump is thereby operated to feed lubricant through conduits 6 and distributers 7 to lubrication points 8. When the valve 3 is in its normal position pressure fluid escapes from conduit 4 through conduit 9. The electromagnet 11 is controlled through a switch 13 in an electric circuit containing a battery 14. A pressureresponsive contact 15 is provided in a circuit 16 to operate a signal device 17 each time a lubricant pulse takes place in the conduit 6. The pump, Fig. 2, comprises a housing 18 for a piston 19, the housing being supplied with lubricant through a connection 20 provided with a check valve. The outer end of the housing has a flange 24 for attachment of a front part 25 to which pressure fluid is supplied through an opening 26. The fluid forces the piston 19 inwardly against the pressure of a spring 23 and lubricant is forced through an outlet 22 to the points requiring lubrication. The piston 19 is provided with an annular recess 28 whereby after detachment of the front part 25 another front part 29, Fig. 3, may be substituted, the annular recess being engaged by a circlip 32 in a piston attachment 30. The attachment has a packing 33 sliding in the wall of the part 29. Fluid under pressure enters the part 29 through an inlet 35 and actuates the pump piston indirectly through the attachment 30. The pump construction forms the subject matter of Specification 765,838, [Group XXVIII].
Patent GB-288224-A (GB)
Title: Improvements in or relating to spray producers and atomisers, particularly for the treatment of the human body
IPC: A61M11/02
Filed: 1927-09-13
Abstract: 288,224. Leipziger Tangier - Werk Akt.-Ges. April 7, 1927, [Contention date]. Direct air-pressure apparatus, non-automatic.- An atomizer for spraying melted paraffin or other wax more particularly for treating the human body, comprises a chamber 1, from which the material is forced by compressed air through a nozzle 5 held in a cylindrical neck 3 by a flange 6 clamped against a flange 4 by a screwed ring 7. The container 1, Fig. 1, is closed by a screw cover 17 having a ring-shaped hollow handle 18 provided with a connection 20 for a flexible air supply pipe and with a safety valve 22. The valve pin 8 passes through a stuffing-box 23 and is operated by a handle 26 against the action of a closing spring 25. The apparatus is provided with a second handle 26, and an eyelet 27 by which it may be suspended. An electric heater 28 fed by a lead 30 surrounds the outlet nozzle.
Patent GB-501755-A (GB)
Title: Improvements in or relating to the manufacture of basic refractories
IPC: C04B35/44
Filed: 1937-09-03
Abstract: 501,755. Refractory compositions. REFRACTORY BRICK CO. OF ENGLAND, Ltd., and DOUGLAS, M. Sept. 3, 1937, No. 24141. [Class 22] In the manufacture of dolomite- or magnesitechromite refractories, substantially all the chromite is in the form of granules of intermediate size. Suitable sizes are, fine fraction passing 72 B.S.S. sieve, medium fraction 18-52 B.S.S. sieve, coarse fractions 5-18 B.S.S. sieve. The proportions of the various fractions are suitably 65-35 per cent coarse, 20-40 per cent fine, dolomite or magnesite, 15-25 per cent medium, chromite. The composition may include a proportion of previously-fired sintered material, which is employed only as coarse and fine fractions. Specification 468,456 is referred to.