baber/WOPTO huggingface dataset:
Patent GB-897817-A (GB)
Title: A water-level-dependent switching-off mechanism for a water suction apparatus for cleaning purposes
Inventor: LYKKE GRAVS LARSEN
IPC: A47L11/30
Filed: 1960-06-28
Abstract: 897,817. Floor drying machines. FISHER & NIELSON, A. S. June 28, 1960, No. 22669/60. Class 138 (1). [Also in Group XXXVII] In a suction apparatus for removing used cleaning water from floors the switch controlling the electric motor driving the suction fan is switched off when the water drawn into the receiving tank reaches a pre-determined level. The switching off mechanism comprises a tube 11, Fig. 3, extending downwardly into the tank from a casing 9 partitioned by a diaphragm 25, and as the water level in the tank 1 rises the air trapped in the tube 11 exerts an increasing pressure on the diaphragm 25 to lift a valve member 23 off its seat, thus permitting a flow of suction air through an ejector 10 and an aperture 29 in the casing 9 into the suction space in the tank 1. Suction is thereby applied to a tube 17 connected at one end to the ejector 10, and at the other end to a bellows 60, Fig. 4, to collapse the latter, so that a full rod 61 tilts a lever 54 to release a latch comprising levers 49, 50 pivoted together and held in a latching aligned position by a spring 52. The latch 49, 50 normally holds a U-shaped member 44, engaging the actuating lever 65 of the switch 66, in the switch closed position, but on release of the latch the member 44 is moved by a spring 46 to open the switch. The spring 44 surrounds the stem of a push button 42 by which the switch 66 may be closed. An additional push button 43 permits manual release of the latch 49, 50 to open the switch.
Patent GB-155887-A (GB)
Title: Improvements in or relating to the tanning of chrome leather
IPC: C14C3/06
Filed: 1919-09-16
Abstract: 155,887. Barber, C. F. L., and Barker, P. R. Sept. 16, 1919. Chrome tanning; combination tanning processes; tanning with aldehydes and other special chemicals.-A chrome tanning-liquor is prepared by the action of synthetic tans upon a solution of chromic acid or a bichromate and acid solution. In an example, a one-bath liquor is prepared by dissolving 100 lb. of potassium bichromate in 20 gallons of boiling water, adding thereto 100 lb. of strong sulphuric acid, and, whilst still at boiling- point, further adding 220 lb. of a synthetic tan prepared by sulphonating a phenol with sulphuric acid, condensing this product with an addition of formaldehyde, and afterwards neutralizing with caustic soda or potash. In a two-bath process. the hide is first drummed in chromic acid or acidulated bichromate solution and then in a strong synthetic tan solution. Reference has been directed by the Comptroller in Specifications 16647/86 and 287/08.
Patent GB-744980-A (GB)
Title: Improvements in or relating to radiation burners
IPC: F23C99/00
Filed: 1952-09-10
Abstract: 744,980. Gas or vapour burners; incandescent gas fires. RADIANT HEATING, Ltd., and DOCKING, A. Aug. 6, 1953 [Sept. 10, 1952], No. 22733/52. Classes 75(1) and 126. A surface combustion burner has a housing which supports an apertured ceramic member having a shield adjacent its peripheral edge which extends outwardly from the outlet surface of the ceramic member and supports a refractory member or members extending across the outlet surface of the ceramic member in spaced relation therewith. The burner comprises a number of apertured ceramic plaques 2 mounted in a frame 3 and fed with a gas or vapour which burns at the outlet surface thereof. A U-shaped member 6 fixed or releasably secured by spring clips to the front of the frame 3 prevents air currents moving upwardly across the outlet surface of the plaques 2 to avoid cooling thereof. A number of refractory tubes 7 mounted on stainless steel rods 8 are supported by the member 6 in parallel relationship across the face of the plaques 2 and reflect heat on to the plaques 2. The burner can be arranged to pivot in a vertical or horizontal plane. In an alternative arrangement shown in Fig. 2 a casing 9 secured to the face of the burner is provided with inwardly directed walls 10 which form a rectangular aperture and shield the outlet surface of the plaques 2 from air currents. The tubes 7 are supported at their upper ends in apertures 11 having a rearwardly inclined rear wall 13 and at their lower ends in recesses 12. The tubes 7 are removed by lifting, then tilting to the chain dotted position 14 and then withdrawing downwardly. The tubes 7 may be of circular, triangular or rectangular cross-section. Specification 741,660 is referred to.
Patent GB-541171-A (GB)
Title: Apparatus for the disinfection of vegetable products and the like
IPC: A23L3/3409
Filed: 1939-08-09
Abstract: 541,171. Preserving food. FISCHBACH, C., SIDLER. L. J., and ENQUIN, J. Aug. 9, 1939, No. 23037. Convention date, Aug. 24, 1938. [Class 49] Apparatus for disinfecting grain, fruit, &c. comprises a vertical casing 10 having a sealing cover 14 .and a base 24 through which extends a vertically reciprocable hydraulic piston 50 bearing a platform 56 which supports the grain &c. To load, the platform is raised to the top of the casing and lowered as loading proceeds. A pump 32 exhausts air from the casing, and a gas-supplying device 34 introduces gas. The gas may be circulated through 32 and 34 or allowed to remain in the casing for, say, 2 hours. After disinfection of the grain &c. the gas is exhausted by the pump to the atmosphere or to an absorbing plant, and valves 22 in the cover are opened to admit air. The cover is then opened by a device 18. An endless band conveyer 60, pivoted at 62, is disposed between the casing 10 and a loading platform 64.
Patent GB-583708-A (GB)
Title: Improvements relating to electric welding apparatus
IPC: B23K9/10
Filed: 1944-11-20
Abstract: 583,708. Supply systems for electric welding. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., PETER, L. H., and STEVENS, S. A. Nov. 20, 1944, No. 23038. [Class 38 (iv)] A welding apparatus adapted to supply A.C. or D.C. alternatively or simultaneously to one or more sets of electrodes 5 ... 7, comprises a welding transformer T, of which the primary winding (not shown) is connected to a single or polyphase A.C. supply, the centre tap or neutral point K of the secondary windings 1 ... 3 is connected to the work W1, and the outer terminals of the windings 1 ... 3 are connected to the electrodes either directly for A.C. welding, or through a rectifier system R for D.C. welding, or both. In both cases, inductances B5, which for D.C. welding serve as smoothing chokes, are connected in series with the electrodes. The connections of the rectifier R may be reversed if it is required to transpose the polarities of the electrodes and the work for D.C. welding. In a modification, Fig. 3 (not shown), the rectifier system R comprises two half-wave rectifiers, connected to two of the secondary windings of the transformer, instead of the three rectifiers used in the main embodiment.
Patent GB-868464-A (GB)
Title: Improvements relating to endless conveyors
Inventor: HARVEY GEORGE ARTHUR
IPC: B65G17/06
Filed: 1958-07-18
Abstract: 868,464. Endless conveyers. SUPREME CONVEYOR BELT CO. Ltd. Aug. 31, 1959 [July 18, 1958], No. 23053/58. Class 78 (1). An endless conveyer consists of two series of chain links 11 interconnected by common pins 111 which extend across the space between them, and a series of perforated sheet-metal plates 10 having interfitting tongues and grooves, the tongues being bent around the pins 111 to form hinge connections so that a continuous articulated conveying surface is formed. In the construction of Figs. 1, 3, each tongue 103 is integral with the respective plate and, beyond the portion passing around the respective pin 111, is formed with a flat end 104 which is spotwelded to the underside of the plate. In the construction of Fig. 8, each tongue is formed by a separate piece 105 which has a bent portion 106 surrounding the respective pin 111 and a flat part 107 spot-welded to the underside of the respective plate 10.
Patent GB-1259797-A (GB)
Title: Support assembly for linear bodies such as electrical lines and cables
Inventor: EUCKER ROBERT ALFRED
IPC: F16L3/14
Filed: 1969-05-06
Abstract: 1,259,797. Vibration dampers. PREFORMED LINE PRODUCTS CO. 6 May, 1969 [10 June, 1968], No. 23092/69. Heading F2S. [Also in Division H2] A cable 12 is supported within two gripping arms 18, 20 which are bolted one on each side of a suspension arm 26 by a bolt 14, resilient washers 30, 32 being placed between the confronting surfaces for damping pivotal movement and cable vibration. The cable may be protected by a split cushion 24 of neoprene, overlaid by helical armour rods 22, and the gripping arms 18, 20 may be bolted between the legs of a U- shaped clamping element 16. The exterior of the cushion 24 and the interior of the gripping arms are of a saddle-shaped contour to prevent longitudinal shifting of the cable support. Neoprene or silicon rubber is suggested for the washers 30, 32 which may be serrated (Fig. 4 not shown) to increase their friction, or coated with grit or bonded to the clamping and suspension arms.
Patent GB-360029-A (GB)
Title: Leakage transformers with linear adjustment of intensity
IPC: H01F29/10
Filed: 1930-07-31
Abstract: 360,029. Transformers. BRETTMON, J., 37, Rue Censier, Paris. July 31, 1930, No. 23153. [Class 38 (ii).] A transformer providing a variable secondary voltage comprises primary and secondary windings P, S on a closed magnetic core A having limb extensions 10 between which a magnetic shunt 2 is mounted in such manner that it may be adjusted by a screw 7 co-operating with springs 4 towards or away from the windings to vary the leakage flux. The casing C is filled to the level 9 with a pasty insulating material.
Patent GB-1222076-A (GB)
Title: Improvements in or relating to co-axial cables
Inventor: HOOKER ERIC JOHN
IPC: H01B11/18
Filed: 1967-05-18
Abstract: 1,222,076. Coaxial cables. PERMANOID Ltd. 26 April, 1968 [18 May, 1967], No. 23266/67. Heading HlA. A coaxial cable comprises an inner conductor 1, surrounded by an insulating dielectric layer of thermoplastics material, and an outer conductor 4, formed of strip metal bonded to the outer conductor surface of the dielectric layer. The cable may be made by wrapping around the inner conductor, and its surrounding dielectric layer of e.g. polyethylene, a metal strip, coated on its inner surface with polyethylene and then applying heat to said strip, to bond it to the dielectric layer. PVC may be extruded on to the conductor 4, and the heat of this extrusion may suffice to effect the bonding.
Patent GB-1505175-A (GB)
Title: Telephone conference circuit
IPC: H04M9/00
Filed: 1975-05-29
Abstract: 1505175 Telephone conference circuits WESTERN ELECTRIC CO Inc 29 Ma@ 1975 [31 May 1974] 23390/75 Headings H4K and H4R A telephone conference circuit comprises: six coupling arrangements 11-16 each of which is associated with an external port, e.g. a telephone line, and all of which are internally connected in a hexagonal ring: three pairs-19/21, 22/23 and 26/27-of substantially equal value resistors, each pair being respectively connected to the coupling arrangements of selected adjacent ports to form three balanced bridge circuits; and a differential amplifier 28, 29, 31 connected to each respective bridge circuit, the output of each amplifier being coupled to the common point between the other two bridge circuits.
Patent GB-1213543-A (GB)
Title: Improvements in or relating to light-transmitting composite material
IPC: C03C27/12
Filed: 1968-05-16
Abstract: 1,213,543. Photo-tropic glass-resin laminates. CARL-ZEISS-STIFTUNG [tradingas JENAER GLASWERK SCHOTT & GEN.] 16 May, 1968 [20 May, 1967], No. 23415/68. Heading B5N. [Also in Divisions C3 and C4]  A light-transmitting composite material comprises a layer of photo-tropic glass bonded to a layer of synthetic resin, e.g. polystyrene, polymethyl methacrylate, polyethylene glycol diallyl carbonate. Layers of non-photo-tropic glass may be included. The resinous material is applied as a monomeric precursor to or between plates of glass. The following combinations are disclosed (P = phototropic glass, N= non-phototropic glass, R = resin): PR, RPR, PRN, NRPRN, PRP.
Patent GB-810141-A (GB)
Title: Sealing ring and method of making same
IPC: B23P15/08
Filed: 1956-07-30
Abstract: 810,141. Making piston-rings. CLEVITE CORPORATION. July 30, 1956 [Aug. 2, 1955], No. 23435/56. Class 83 (2). [Also in Group XXVI] A method of making a piston or other sealing ring of metal from two solid rings, each having a smooth face, consists in applying an adhesive to a portion only of at least one of these faces, cementing the two rings together face-to-face over the area 24, Fig. 1, covered by the adhesive, so as to leave an uncemented portion 25, cutting one ring from an outer face to its cemented face at a location 30 adjacent one end of the uncemented area and cutting the other ring from an outer face to its cemented face at a location 31 adjacent the other end of the uncemented area. A suitable adhesive is a modified phenolic resin in a 50-50 toluene-alcohol solvent. The two rings may be of equal diameter and applied one on top of the other, as shown in Fig. 3, or of different diameter, one then being fitted inside the other, as shown in Fig. 14. The coacting faces are finish machined prior to cementing the rings together to provide a smooth overlapping joint portion, and, before cutting. the rings to make the gap, the inner and outer faces of the composite ring may be finish machined. The composite ring may be used in combination with a one-piece ring 39 having a single expansion gap 40, as shown in Fig. 6, the composite ring 35 being fitted within the ring 39 so that the gap 40 of the latter ring is preferably spaced away from the axially-stepped gap 30, 31 of the composite ring; the one-piece ring may, instead, be fitted within the composite ring, the arrangement depending on whether the seal is to be used for sealing the outside diameter of a journal or within a bore. The one-piece ring may be secured against rotation relative to the composite ring, to maintain the spacing of their respective expansion gaps, either by pinning, cementing, or by a pin or projection 60, Fig. 18, carried by the housing 51 and engaging the gap 53 of the one-piece ring 54 and the gap 55 of the composite ring 56, 57; pressure-balancing grooves 58, 59 are also provided. In the arrangement shown in Fig. 5, a built-up segmental ring is formed by cutting at three uncemented portions to provide stepped joints.
Patent GB-1044978-A (GB)
Title: A road screen
IPC: E01F7/06
Filed: 1963-06-12
Abstract: 1,044,978. Anti-dazzle screens. HUNTER DOUGLAS INTERNATIONAL (QUEBEC) Ltd. June 12, 1963 [June 12, 1962], No. 23442/63. Heading E1G. An anti-dazzle screen comprises at least two stringers 8 having recesses 10 and/or raised portions 11 supporting a plurality of profiled strips 12, the stringers being supported on posts 7. The stringers are of channel section and may face in the same or opposite directions; being secured to the posts 7 by two part clamps having resilient clips 9. The profiled strips have inturned edges which may be separated from the edges of adjacent strips by gaps 15 and the strips may bear sign markings. In use the panels formed are placed transversely to the roadway at spaced intervals.
Patent GB-961708-A (GB)
Title: Method of making polyvinyl chloride composite sheet material
IPC: B29C65/48
Filed: 1960-07-06
Abstract: 961,708. Laminates and laminating. A. B. FREEMAN. July 6, 1960 [July 25, 1959], No. 23566/60. Heading B5N. A composite sheet is made by feeding a pliable textile fabric carrier sheet 13, e.g. of cotton, along a path in which it is supported, continuously depositing on the carrier a uniform layer 11a of polyvinyl chloride sufficient to permeate the carrier, heating to gel the plastisol and bond it to the carrier, conveying a thin, flexible surface-sheet 12 of polyvinyl chloride to a point above the free surface of the gelled layer, applying the surface sheet to this free surface, before cooling it, compressing the layers together, and cooling the compressed composite sheet. As shown, the plastisol is heated by radiant heaters 21, which may comprise units (shown in broken line) which can be separately raised and lowered, and preferably have an exhaust system (not shown) to carry away any fumes produced. Further heaters may, if desired, be fitted below the belt 18a. The film 12 may have a printed pattern on the side towards the plastisol, and may be embossed by the rollers 26 and 27. The product is cooled by passage over the closed tank 29 in which a cooling fluid, e.g. water, is circulated. The edges are trimmed by blades 33 and the product wound up at 36.
Patent GB-799982-A (GB)
Title: Vibrator with an unbalanced revolving shaft
IPC: E04G21/08
Filed: 1955-08-16
Abstract: 799,982. Vibratory mechanism. STAVOSTROJ NOVE MESTO, NARODNI PODNIK, KUZELA, J., and VAVRIN, F. Aug. 16, 1955, No. 23583/55. Class 80 (4). In a vibrator comprising a casing 1, Fig. 1, supporting an unbalanced shaft 3 the vibrations are modulated by a hollow cylinder 5 freely mounted between the shaft 3 and casing 1, the cylinder 5 being caused to roll around the casing 1 by the vibratory movements. In order to vary the modulation cylinders 5 of different lengths or with projections 6 of different sizes may be employed. The shaft 3 is driven by a motor either directly or through a flexible shaft. In a modification an unbalanced shaft 9, Fig. 2, has spaced eccentric portions 10, 101 and a small modulating unbalanced cylinder 12, which may be changed, is mounted to roll on the intervening concentric shaft portion. Conical end faces of the cylinder 12 engage corresponding faces on a fixed sleeve 14 and a spring- loaded sleeve 15.
Patent GB-443026-A (GB)
Title: Improvements in and relating to the hinges of the doors of cooking ranges and stoves
IPC: F24C15/02
Filed: 1935-05-25
Abstract: 443,026. Casting hinges. SCOTTISH CENTRAL IRON CO., Ltd., and HARRISON, W., Central Iron Works, Falkirk. May 25, 1935, No. 23634/34. [Class 83 (i)] [See also Group XXV] In making hinges for oven and like doors comprising parts 2 cast integral with the door A and parts 4 cast integral with the frame, one set of these parts having substantially conical pivots 5 to engage corresponding sockets in the other parts, metal chills are used to form the hinge parts, the door and frame being cast separately from one another.
Patent GB-213526-A (GB)
Title: Improvements in the manufacture of fuel alcohol and in apparatus therefor
IPC: C10L1/00
Filed: 1923-09-21
Abstract: 213,526. Henneberg, G., and Charpentier, M. March 27, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Liquid fuel. - A fuel for lighting, heating, and power purposes consists of a solution of acetylene in acetone and dehydrated alcohol. Ether and ammonia may be added. Suitable proportions are 93-95 litres of 99- 99.7 per cent alcohol. 1-2.5 litres of acetone, 6-10 litres of acetylene, 2-4 litres of ethyl ether, and 0.3-0.5 litres, of ammonia solution of 28‹ BÚ. Using the apparatus shown, alcohol is passed from a storage tank A through a constant level tank b, a pipe t, past an adjusting cock R provided with a scale and pointer, through a heater B, and past a thermometer T to a vessel L from which it is distributed over the sides of a dehydrator D by a siphon and a rotating pipe L<1>. The dehydrator is charged with calcium carbide which is introduced continuously from a hopper K. The alcohol, charged with acetylene and carrying with it the lime produced, passes through a seive Z and a glass outlet S to one of the stills O, G fed with acetone from a tank Q. The vapours from the still are condensed in a cooler Hand passed through a gauge I, or are passed through a pipe u and a cooler C to the dehydrator again. Vapours and gases from the dehydrator pass through a cooler E, from which condensate returns to the distributing pipe L', and then through water in a bubbling tube, and into an acetylene reservoir. The liquid may be purified in the still by treatment with basic substances, e.g. lime, soda, or ammonia, followed or not by treatment with lead salts.
Patent GB-167685-A (GB)
Title: Protector for the cutting edges of hatchets or axes
IPC: B26B23/00
Filed: 1920-08-13
Abstract: 167,685. Rees, D. Aug. 13, 1920. Tool edges.-A protector for applying to the edges of hatchets, &c., during transit comprises two wooden blocks f connected by hinges e and drawn together by spiral springs a which keep the blocks on the tool when it is placed between the blocks f. Two bent steel wire springs b shaped as shown and fixed to the sides of each block f assist in tightening the grip of the blocks on the hatchet blade c.
Patent GB-762644-A (GB)
Title: Process for the production of terephthalic acid and derivatives thereof
IPC: C07C51/41
Filed: 1954-08-16
Abstract: Terephthalic acid is obtained from its alkali-metal salt prepared by heating an alkali-metal salt of isophthalic acid at temperatures between 340 DEG  C. and the decomposition temperature of the salt. Alkali-metal salts specified are dipotassium isophthalate and the sodium, rubidium and lithium isophthalates. Catalysts such as mercury or mercury compounds, or oxides of zirconium, titanium, arsenic, tin, iron, lead, or zinc may be used.  In place of pure alkali-metal isophthalates as starting-materials, reaction mixtures yielding potassium isophthalate, mixtures of isophthalates with potassium salts of other organic acids such as mixtures with potassium phthalate obtained by the oxidation of xylene mixtures, or mixtures of alkali-metal isophthalates with inert substances such as sand, coke, powdered metals and metal turnings and fragments or inert salts such as potassium carbonate, sulphate or chloride may be used.  The reaction may be conducted in the absence of oxygen and water under a carbon dioxide atmosphere under atmospheric or increased pressure and may be effected by heating with agitation or by heating thin layers of the starting material in narrow reaction chambers formed by division of the reaction space by metal partitions between the top and bottom and/or between the sides.  Terephthalic acid is obtained by acidification of an aqueous solution of the crude alkali metal terephthalate formed in the heating step, extraction of the filtered precipitate with boiling water and reprecipitation of the residue from alkali. Benzoic and trimesic acids are obtained as by-products. Terephthalyl chloride and dimethyl terephthalate may be prepared by known methods from the product of the heating step.  In examples, dipotassium isophthalate is heated under CO2 (1) at various temperatures and pressures without a catalyst, (2) under pressure in the presence of iron oxide, zirconium dioxide, stannous oxide, titanium dioxide, arsenic oxide, stannic oxide and litharge, (3) at atmospheric pressure in the presence of a mixture of iron oxide and litharge; a mixture of dipotassium terephthalate and dipotassium phthalate is heated at atmospheric pressure under CO2 in the presence of a mixture of iron and lead oxides. Specification 747,204 is referred to.
Patent GB-467304-A (GB)
Title: Improvements in and relating to automatic weighing machines
IPC: G01G23/00
Filed: 1936-08-31
Abstract: 467,304. Moving signs. GRUNBAUM, P. M. Aug. 31, 1936, No. 23793. [Class 3 (i)] In an automatic weighing machine, one or more non-endless display bands 13 are moved continuously or intermittently alongside the indicator dial, and are automatically reversed at the end of their wind. A translucent mirror 5 covers both the dial and the bands, and lamps 14 behind the bands may be switched on by the weight of a person on the foot-board 2, such action also starting the movement of the bands.