baber/WOPTO huggingface dataset:
Patent GB-495390-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/26
Filed: 1937-05-11
Abstract: 495,390. Sliding - clasp fastenings. CORNER, G. H. C., and LIGHTNING FASTENERS, Ltd. May 11, 1937, No. 13415. [Class 44] The slider for a sliding-clasp fastener comprises a body 1 of non-metallic material having a metal bridge-piece 4 to retain the pull tab 6, such bridge-piece being fixed to projections 2, 3 on the body of the slider or to recesses in the body of the slider. For example, the metal may be deformed into engagement with channels 5 cut into the projections 2, 3 at their base. The projections 2, 3 may be separately formed and secured to the body of the slider by cementing. In another form, the slider body is recessed to receive the ends of the bridge-piece, such ends being shaped so that they are retained by sticking a strip of non-metallic material to cover a part or the whole of the recess. The metal bridge-piece may be of aluminium coloured by dyeing. According to the Provisional Specification, a leaf spring acting as a locking device for the slider may be clamped between the metal bridge-piece and one of the projections.
Patent GB-495402-A (GB)
Title: A process of exchanging ions between a solution and an artificial resin and a manufacture of artificial resins therefor
IPC: F16L27/10
Filed: 1937-05-13
Abstract: Primary aromatic amine-aldehyde resins for use as anion-exchangers are modified by reacting the amine used or the resin with an alkylating agent which either contains a basic group or groups or receives a basic group by replacement of a reactive atom or group. Specified agents are ethylene-imine, N-dimethyl-b -chlorethylamine, epichlorhydrin.  In examples: (1), (2), (5), the non-methylated resin obtained from m-phenylenediamine and formaldehyde according to example (1) of the parent Specification is heated with (1) epichlorhydrin followed by trimethylamine, (2) ethylene-imine vapour, (5) b -chlorethylamine hydrochloride and caustic soda; (3), (4), m-phenylenediamine is treated with (3) ethylene-imine, (4) N-dimethyl-b -chlorethylamine, then condensed with formaldehyde; (6) a mixture of m-phenylenediamine and epichlorhydrin is treated with trimethylamine, then condensed with formaldehyde. Specification 495,401 also is referred to.ALSO:Primary aromatic amine-aldehyde resins for use as anion-exchangers are modified by reacting the amine used or the resin with an alkylating agent which either contains a basic group or groups or receives a basic group by replacement of a reactive atom or group.  Specified agents are ethylene-imine, N-dimethyl-b  - chlorethylamine, epichlorhydrin.  In examples: (1), (2), (5) the non-methylated resin obtained from m-phenylenediamine and formaldehyde according to example 1 of the parent Specification is heated with (1) epichlorhydrin followed by trimethylamine; (2) ethyleneimine vapour; (5) b -chlorethylamine hydrochloride and caustic soda; (3), (4) m-phenylenediamine is treated with (3) ethylene-imine; (4) N-dimethyl-b -chlorethylamine, then condensed with formaldehyde; (6) a mixture of m-phenylenediamine and epichlorhydrin is treated with trimethylamine, then condensed with formaldehyde.  Specification 495,401 is referred to.
Patent GB-1343906-A (GB)
IPC: A61H31/02
Filed: 1971-05-06
Abstract: 1343906 Respirator MEDICOR MUVEK 6 May 1971 [20 May 1970] 13559/71 Heading A5T A respirator comprises a bistable fluidic element 10 of the wall effect type having a bifurcated passage 12 with a respiratory branch 12a connectable to a patient and an exhaust branch 12b open to the atmosphere separated by a wedge-shaped member 1, an inlet nozzle 16, a mixing injector 18 for supplying oxygen from a pressure source and diluting it with air drawn in from the atmosphere through a tranverse air inlet 20a and a passage 24 disposed such that a line joining point 2 of the wedge-shaped member 1 with a point 5, at which the wall of the passage 24 remote from the nozzle 16 terminates at one wall of the exhaust branch 12b, lies substantially at right angles to the surface 6 of the wedge-shaped member 1 which defines the opposite wall of the branch 12b. A slide 26 may vary the cross-sectional area of the passage, 24. During exhalation when air is withdrawn from the branch 12a, the passage 24 provides escape for the surplus of gas coming from the injector 18 and that from the lungs of the patient. When the lungs of the patient are empty a depression in the gas pressure is created in branch 12a and air flows into passage 24 from the atmosphere causing the gas from the injector 18 to switch to passage 12a.
Patent GB-118696-A (GB)
Title: Improvements in Tipping Wagons and the like.
Inventor: BROWN WILLIAM
IPC: B60P1/12
Filed: 1917-09-21
Abstract: 118,696. Brown, W. Sept. 21, 1917. Tipping carts, vans, and wagons.-The body b of the wagon is tipped about a pivot a' by a pair of cams d which engage projections b<1> on the underside of the body. The cams may be rotated by the propelling-motor of the vehicle. The body b may be disposed within an outer open-ended fixed shell body c.
Patent GB-630631-A (GB)
Title: Improvements in the flocculation of sewage suspensions and sludges
IPC: C02F11/12
Filed: 1947-05-21
Abstract: Sewage suspensions and sludge, particularly digested and activated sludge, are flocculated by basic chloride solutions of aluminium and/or iron.  The solutions may be prepared by known methods and may be of any desired basicity containing, e.g., only 75 per cent. of the hydrochloric acid content of the normal salt. According to the Provisional Specification, solutions may also be prepared by electrolysis, containing only 10 per cent. of the hydrochloric acid content of the normal salt.
Patent GB-721596-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/59
Filed: 1951-06-08
Abstract: 721,596. Luminescent materials. GENERAL ELECTRIC CO., Ltd., and McKEAG, A. H. May 28, 1952 [June 8, 1951], No. 13648/51. Class 39 (1) Luminescent material consists of a lithium cadmium silicate, composed of the oxides 'of lithium, cadmium and silicon in proportions such that the molecular ratio of Li 2 O: CdO is 1:1 and the molecular ratio of Li 2 O: SiO 2  is in the range of 1:1 to 1:2 inclusive, activated by manganese, so as to be excited by ultra-violet radiation of 2537 Š from a low pressure mercury vapour discharge lamp or by cathode rays from a cathoderay tube. Examples of materials are Li 2 O. CdO. SiO,. 1¢Li 2 O, 1¢CdO, 2SiO 2  and Li 2 O, CdO. 2SiO 2 , and materials having intermediate compositions or mixtures thereof. The materials can be prepared by heating together the oxides of Li, Cd and Si together with a compound of manganese, the oxides being either initially present as such or formed by chemical reaction or decomposition during the heating. The proportion of manganese present in the starting material is in the range of 0.01 per cent. to 5 per cent., preferably 0.01 per cent. to 1 per cent., by weight of the total weight of the oxides of Li, Cd and Si in the product of the heating. The heating is carried out at a temperature of the order of 850 C. to 1,000‹ C., and may be carried out in two or more steps, the material being ground between heating steps. The starting material may consist of silica, lithium carbonate, cadmium carbonate and either manganese carbonate or manganese chloride. Several specific examples are described. Specification 512,154 is referred to.
Patent GB-528860-A (GB)
Title: Improvements in thermionic valve circuits
IPC: H03C3/24
Filed: 1939-05-08
Abstract: 528,860. Radio altimeters. GENERAL ELECTRIC CO., Ltd., TURNER. H. C., and TOMLIN, G. M. May 8, 1939, No. 13706. [Class 37) [Also in Group XL] A radio altimeter of the reflection type may make use of a thermionic valve circuit for generating current of a cyclically varying frequency [see Group XL].
Patent GB-499108-A (GB)
Title: Improvements in or relating to apparatus, such as radio receivers, for converting acoustically-modulated oscillations into sound oscillations
IPC: H04R3/08
Filed: 1938-05-07
Abstract: 499,108. Loud-speakers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 7, 1938, No. 13707., Convention date, May 10, 1937. [Class 40 (iv)] [Also in Group XL] Means for varying the radiating aperture of a loud-speaker, operated in conjunction with electrical band-width control means, comprises louvres 7, Fig. 1, or a rotary apertured disc 10, Fig. 3, mounted in a baffle 5.
Patent GB-275363-A (GB)
Title: Apparatus for bleaching, dyeing, washing & drying yarns or fabrics
IPC: D06B3/24
Filed: 1926-05-31
Abstract: 275,363. Winter, W., and Jordan, H. May 31, 1926. Oscillating drums; air, controlling direction of flow of.-Apparatus for the liquid treatment and drying of yarns and fabrics without intermediate handling, comprises readily removable carriers supported in open bearings on a frame lowered into a vat, the carriers being rotatable in any position of the frame by a motor on the frame, and the vat being provided with an airtight, cover fitting on to the frame and with exhausting and circulating apparatus. The carriers 9, comprising diametrically opposed bars 9<a>, are supported in open-top bearings 8, 10 on the frame 2, and are rotated by the engagement of pins 16 with lugs 17 on the gear or worm wheels 6 which are driven through reversing gear 24 by a motor 25. From the carriers 9 are suspended dividing rods or rollers 18, while further dividing rods 19 are arranged longitudinally on the frame. The cover 29 is suspended from arms 31 pivoted on the vat. After circulation of the liquid by a pump 32 through heating vessels 34, 33, the vat is emptied for drying, the circulation being maintained through vessel 34 acting as a cooler precipitating moisture and through vessel 33 acting as a re-heater; or by exhausting direct to atmosphere through valve 36 and isolating vessel 34, a partial vacuum may be created in the vat, which may be simultaneously heated by steampipes. The frames are raised or transferred to other vats, with the carriers still rotating, by a hoist 27 on an overhead track, and have taper positioning-guides 4.
Patent GB-1218164-A (GB)
Title: Improvements in or relating to a bracelet, especailly for a watch
IPC: A44C5/02
Filed: 1969-03-15
Abstract: 1,218,164. Non-expansible bracelets. P. A. DEROBERT, M. M. DEROBERTGENOUD [trading as ETABS INDUSTRIELS PIERRE A. DEROBERT & CIE]. 15 March, 1969, No. 13734/69. Heading A3H. A bracelet is composed of interfitting elements 8 connected by at least one flexible strand (9), Fig. 1 (not shown), passing through them the elements pivoting with respect to one another at a pivoting axis through which the strand or strands pass, the hinge means comprising a semicylindrical boss 1 on one element, engaging in a rounded groove 3 of the next. An inclined plane 5 on one face of each element allows the bracelet to be flexed. Bores 6 and 7 may be of slightly smaller diameter than that of the strand, or alternatively one or more of the bores may be screw threaded enabling a cable to be screwed through each element. The elements may be solid to allow deep ornamentation or shaping by external machining, by extrusion or lamination.
Patent GB-696326-A (GB)
Title: Improvements in or relating to cycle and like mudguards and their manufacture
Inventor: BLUEMEL FRANK WILLIAM
IPC: B62J15/00
Filed: 1951-06-11
Abstract: 696,326. Extruding mudguard sections. BLUEMEL BROS., Ltd. June 3, 1952 [June 11, 1951], No. 13758/51. Class 87 (ii) [Also in Group XXXI] A method of manufacturing a cycle or like mudguard comprises extruding an elastomer-forming material through a die of shape, corresponding to the section of the mudguard, forming the material during the extrusion operation with a pair of openings 12 extending longitudinally of the extruded section adjacent opposite lateral edges, severing the extrusion into suitable lengths for mudguards and inserting resilient metal reinforcing members 13 in the openings in the extrusion. The lateral sides of the die opening are made of increased thickness and of circular cross section so that beads 11 are formed on the extruded body 10. The openings 12 are formed by mandrels. Reinforcing ribs 16 are also formed during the extrusion. The reinforcing members 13 are inserted after the extrusion has been severed into mudguard lengths and are of greater length than the mudguards so that their ends may be bent over into engagement with the inner faces of the mudguards as indicated at 14.
Patent GB-444369-A (GB)
Title: Improvements in or relating to mashers for vegetables and the like
IPC: A47J19/00
Filed: 1935-05-10
Abstract: 444,369. Mashing vegetables &c. MANTELET & BOUCHER, 11, Rue Jules Ferry, Bagnolet, Seine, France. May 10; 1935, No. 13824. Convention date, Aug. 3, 1934. [Class 28 (ii)] [See also Group I] A masher for vegetables, cheese, or meat comprises a vessel 1 with a perforated bottom 6 over which works a rotary presser, and is characterized by the presser C being formed as a number of separate portions each consisting of a helical surface 15, the lower edge of which contacts with the bottom 6, and a continuation surface 17 of smaller pitch, the upper edge 18 of which is turned upwardly. The lower part of the edge of each pressing portion is substantially in contact with the of the vessel 1 and the space between the edge of the portion and the wall of the vessel progressively increases from the lower to the upper end of the portion. Scraping blades 8 are attached, in inclined manner, to the wall of the vessel 1. The bottom 6 may be plane, conical or part spherical, and is formed with a bearing 11 in which the handle shaft 9 carrying the presser is journalled. The parts are retained in position.by a nut 14 on a thread 12 which is flattened at one side to receive a washer 13 with a correspondingly shaped hole. A handle 4 is secured, e.g., by soldering, in a groove 2, the ends being of hook form to rest on the vessel receiving the mashed product.
Patent GB-424248-A (GB)
Title: Improvements in or relating to the preparation of hydrocarbon motor fuels from oxygen-containing organic compounds
IPC: C10G3/00
Filed: 1933-05-12
Abstract: Hydrocarbons are formed by treating oxygen-containing organic materials of vegetable origin with nascent hydrogen and separating the hydrocarbons obtained by distillation.  The raw material preferably consists of a natural or artificial wort or must of vegetable material such as fruits, berries or suspensions in water of cellulosic materials such as wood, husks, plant roots, seeds or of vegetable flour.  The suspension or must is first treated to stop fermentation, treated with sulphuric acid to convert the cellulose into sugars and then concentrated.  The concentrate containing alcohols, acids, amidones, sugars, dextrin and similar substances is then treated with an alkali metal or calcium or amalgam thereof to effect reduction.  The product is then distilled and the hydrocarbon distillate is condensed.  The nascent hydrogen may also be produced electrolytically.ALSO:Motor fuels are formed by treating oxygen-containing organic materials of vegetable origin with nascent hydrogen and separating the hydrocarbons obtained by distillation. The raw material preferably consists of a natural or artificial wort or must of vegetable materials such as fruits, berries or suspensions in water of cellulosic material such as wood, husks, plant roots, seeds or of vegetable flour.  The suspension or must is first treated to stop fermentation, treated with sulphuric acid to convert the cellulose into sugars and then concentrated.  The concentrate containing alcohols, acids, sugars, amidones, dextrin and similar bodies is then treated with an alkali metal or calcium or amalgams thereof to effect reduction.  The product is then distilled and the hydrocarbon distillate is condensed.  The nascent hydrogen may also be produced electrolytically.
Patent GB-1106231-A (GB)
Title: Improvements relating to the manufacture of phosphoric acid
IPC: C01B25/18
Filed: 1965-04-01
Abstract: Phosphoric acid is manufactured by treating a material containing a phosphate salt with phosphoric acid, separating insoluble material from the resulting liquor, and contacting the liquor with a cation exchange resin.  The preferred material for treatment is phosphate rock e.g. apatite.  The apatite is leached with excess phosphoric acid to form monocalcium orthophosphate, any HF liberated being sparged by a current of air or an inert gas.  If desired, the reaction mixture may be heated to 90 DEG  to 105 DEG  C.  The monocalcium orthophosphate formed dissolves in the excess acid, the insolubles being easily removed by filtration or decantation.  The filtrate is then cooled, preferably to 70-85 DEG  C. to allow the monocalcium orthophosphate to crystallize.  The crystals are separated, or washed, and may be solubilized in water or phosphoric acid and contacted with a strongly acidic cation exchange resin to produce phosphoric acid.  Suitable exchange resins are the phenolic methylene sulphonic, the nuclear sulphonic and the sulphonated coal types.  The resin may be regenerated by means of a mineral acid.  If desired, the dry crystals may be contacted directly with the wet cationic resin.  In this case the sulphonic acid present solubilizes the crystalline material with liberation of phosphoric acid.
Patent GB-514559-A (GB)
Title: Improvements in mechanically stoked grate furnaces
IPC: F23K3/10
Filed: 1938-05-10
Abstract: 514,559. Feeding fuel to furnaces. KRUPP AKT.-GES., F. May 10, 1938, No. 13905. Convention date, May 25, 1937. Addition to 456,494, [Group XII]. [Class 78 (i)] [Also in Group XII] A modification of the furnace described in the parent Specification consists in forming the main grate 5 of fixed bars 20 and reciprocating bars 23 arranged between the fixed bars and adapted to rise during their movement above the fixed bars and to move in opposite direction to the pusher 18 of the fuel mixing device. Fuel is fed to the passage in front of the pusher 18 by a travelling conveyer 9 one end of which receives fuel from a hopper 7. The conveyer 9, grate bars 23 and pusher 18 are operated by a common lever 30 which is oscillated by the piston of an engine 34. The lever 30 is connected by a rod 36 to pawl and ratchet gearing for driving the conveyer, by an arm 31 and rod 45 to the pusher 18 and' by rods 43, 44 to the bearers 21 of the grate bars 23. The speed of the conveyer, pusher and grate bars may be varied.
Patent GB-119498-A (GB)
Title: Improvements in or relating to Schackles, Links, and the like.
Inventor: TISDELL THOMAS ARTHUR
IPC: F16F3/02
Filed: 1917-09-27
Abstract: 119,498. Tisdell, T. A. Sept. 27, 917. Vibration-dampers. - The bearings between shackles or links, for connecting springs to the frames of vehicles, and their pivots, comprise a number of interengaging surfaces, and the pressure between the surfaces can be regulated so that the shackles and links can act as antivibration devices. In the construction shown in Fig. 1, the link b engages its pivot pin a by a screw-thread c, the part of the link which embraces the pin being split and provided with a clamping-screw c for adjusting the pressure between the parts. Felt disks f retained by cupped washers g retain lubricant in the bearings. In the construction shown in Fig. 3, the pin a<1> is fixed in the links b<1> and bears in a sleeve i<1>, the bearing surfaces being in the form of screw-threads. The sleeve i<1> is split and provided with clamping-screws. e'. In the construction shown in Fig. 4 sleeves j are non- rotatably fixed on the pins, and the link connecting them and rotatable upon them comprises a number of plates l alternating with and bearing upon washers m keyed to the sleeves j. The pressure between the plates and the washers is adjusted by nuts n. The link is provided with a divided casing p, and with oil-retaining washers q.
Patent GB-552037-A (GB)
Title: Improvements in and relating to automatic systems for controlling the temperature offurnaces, ovens and the like
IPC: G05D23/22
Filed: 1941-10-29
Abstract: 552,037. Automatic control systems for furnaces and ovens; protective devices for dynamoelectric machines. BRITISH THOMSON-HOUSTON CO., Ltd; (General Electric Co.). Oct. 29, 1941, No. 13930. [Classes 35 and 38 (iv)] Temperature.-The heat supply to a furnace, oven or the like 10 is controlled by means, such as a saturable reactor 14 controlling heating current, variably energized by a direct current machine having short-circuited quadrature brushes 19, 20 such as is described in Specification 539,835 and an excitation winding controlled in accordance with the furnace temperature. Opposed exciting windings 23, 24 are in series with the output of a rectifier 25 and shunted by the respective parts of a potentiometer 26 adjusted by means 34, 35, 37 responsive to furnace temperature so that below a desired temperature, which may be determined by variable resistances 39, 40, a variable current is delivered to the saturating winding of the reactor. To prevent a saturating current should the temperature rise beyond the desired value, whereupon the nett excitation of the dynamo would reverse an electric valve, such as a copper oxide rectifier 31 is effective to short circuit the output of the dynamo. A resistance 33 provides adjustment of sensitiveness. The dynamo is excited mainly by armature reaction and a coil 22 substantially neutralizes the flux along the secondary axis of the brushes 17, 18. A neutralizing winding 41 may be connected in series with the valve 31.
Patent GB-858305-A (GB)
Title: Improvements in or relating to swings
IPC: A63G9/16
Filed: 1956-05-05
Abstract: 858,305. Swings. KENT, H.C. Aug. 6, 1957 [May 5, 1956], No. 13971/56. Class 132(1). A swing 16 has forward and rearward members 14, 15 by which it is suspended from a point in the upper part of a supporting frame 11, from another point of which forward of the first, the forward end of a foot lever 20 is suspended whose rearward end is pivoted to the swing on which is supported a propeller 28 driven by means attached to the foot lever as the swing is operated. As shown frame 11 has a top cross-member 12 with hooks 13 from which ropes 14, 15 are suspended. Swing 16 carries a seat 17 and a bracket 18 to which lever 20 is pivoted. Pedals 31 are mounted on lever 20 whose other end is adjustably connected by a rope 21 to a hook 22 secured to a member 23 extending forwardly from cross-member 12. Brackets 24. 25 on the forward end of swing 16 support a rotatable shaft 26 carrying a V-pulley 27 and the propeller 28. A member 29 has one end attached to the foot lever 20, is wrapped round pulley 27 and has its other end fixed to a coil spring 30 supported by member 21. A handle 32 is provided on swing 16.
Patent GB-217585-A (GB)
Title: Improvements in radiogoniometers
IPC: G01S3/06
Filed: 1924-06-10
Abstract: 217,585. Bellini, E. June 11, 1923, [Convention date]. Directive s i g n a l. ling. - In order to eliminate the vertical or non - directional effect of an ordinarv frame aerial or radiogomometer, the middle point of the frame winding, or , as shown in the Figure, the centre point of the combined system of fixed coils B, B and search coil C, is earthed at T. The equipotential point of the filament-heating battery is also earthed at P, a grid biasing battery being inserted if necessary to adjust the mean grid potential to its optimum point. By inserting a resistance R of suitable value in the earth lead from the frame, a sufficient residue of the vertical effect may be retained and utilized to remove the diametral ambiguity of the frame system when used alone.
Patent GB-253707-A (GB)
Title: Improvements relating to pit props
IPC: E21D15/60
Filed: 1925-05-29
Abstract: 253,707. Croston, T., and Croston, W. May 29, 1925. Mine props.-A pit-prop of the kind described' in Specification 174,773 is provided with a displaceable portion D either flat or wedge-shape which can be rotated about a centre pin a<2> or an edge pin d<5> to the most suitable position for withdrawal, a shackle d<3> being provided for this purpose. The centre pin a<2> is engaged by a rece:;s a' in the prop end, into which it enters further on the member D being withdrawn. Multiple positions for the edge pivot pin and shackle may be provided.