baber/WOPTO huggingface dataset:
Patent GB-383768-A (GB)
Title: Improvements in or relating to atomising pistols for paints and other liquids
IPC: B05B7/12
Filed: 1931-12-19
Abstract: 383,768. Spray-producers. LEMOINE, H. G., 1A, Buissionniere, near Perrers-sur- Andelle, Eure, France. Dec. 19, 1931, No. 35208. Convention date, Dec. 23, 1930. [Class 69 (iii).] A paint sprayer of the kind in which the needle valve 17 which regulates the liquid nozzle 40 is provided with an axial passage for atomizing air is provided with a rotatable head 45 carrying flattening jets 48, the friction between which and the spray head is regulated by adjusting the packing in a stuffing-box 50 which ensures gastightness. The flattening jets are regulated by needle valves 49. The spray head 1a is mounted on a liquid container 34 and detachably connected to a handle member 1 by a screw collar 26, correct registration being ensured by pins 24 on the handle member 1 engaging recesses on the member 1a. The valve 17 is operated by a trigger 13 against the action of a spring 22, the tension of which is adjusted by a screw sleeve 21. The travel of the trigger is limited by an adjustable stop 23. The trigger also operates an air valve 6 to admit air from a side passage to the space 27 where it passes to the passage in the needle 17 and also through a valved passage 29 to the liquid vessel 34, which may be regulated by adjusting the screw 31. Air passages are also provided which lead to grooves on the exterior of the nozzle 40 to assist in atomization and also from thence through the valved passages 47 to the flattening jets 48, an expansion chamber being formed behind them of greater area than the orifices.
Patent GB-1268139-A (GB)
Title: Device for spacing the segments of a commutator
IPC: H01R43/06
Filed: 1970-07-21
Abstract: 1,268,139. Making commutators. KAUTT & BUX OHG. 21 July, 1970 [8 Nov., 1969], No. 35268/70. Heading B3A. A device 101 for spacing commutator segments 103 during manufacture of a commutator comprises a tubular cage having an outer peripheral wall, which is at first of frusto-conical shape, and a plurality of spacing strips 102 integral with the wall and projecting radially inwardly from the inner surface of the cage. The segments 103 are inserted mechanically into the cage, which is of plastics, until they abut stop members 110 adjacent a ring 106 and projecting pins 107 enter into slots 109 formed in an extension 108 of the cage. Slots 104 contiguous with the slots 109 are deeper than the latter and extend through the thickness of the cage wall. The cage is then brought to a cylindrical shape in a mould so that the slots 104 are closed and the segments are tightly clamped by the strips 102. The commutator is completed by filling it under pressure with insulating moulding material. The outer wall of the cage is removed by a solvent or machined off if machining of the segments is required. The spacing strips 102 are removed either by a solvent or mechanically by pulling on the ring 106. The pins 107 are bent outwardly to form soldering terminals. In an alternative embodiment there are no stop members 110 and the strips 102 are integral with the ring 106. When assembling segments (3) not provided with pins 107, there is no extension 108 and members 102 are not provided on the device (1), Fig. 1 (not shown).
Patent GB-1516146-A (GB)
Title: Polymerization of ethylene with oxygen and organic initiators
IPC: C08F10/02
Filed: 1975-08-28
Abstract: 1516146 Ethylene polymerization in tubular reactors UNION CARBIDE CORP 28 Aug 1975 [29 Aug 1974] 35494/75 Heading C3P Homo- or copolymers of ethylene are prepared under high pressure conditions in the presence of (a) molecular oxygen, (b) at least one organic free radical initiator (I) having a ten hour half life temperature of <123C. and (c) at least one organic free radical initiator (II) having a ten hour half life temperature of < 133 C. and in a tubular reactor with a length to diameter ratio of # 1000, and a "length" l in feet of wherein W=monomer pumping rate in lb./hr. D = inner diameter of the reactor tube in inches; the effective length of the reactor is defined as the distance between the points at which initiator I starts to initiate polymerization and at which the maximum of the exotherm caused by initiator II occurs. In the examples, ethylene is homopolymerized using O2, the tertiary butyl peroxy ester of 2- ethylhexanoic acid as initiator (I), and tertbutyl hydroperoxide as initiator (II). In the comparitive examples di-tertiary butyl peroxide is used instead of the oxygen.
Patent GB-1363304-A (GB)
Title: Polyolefin compositions
IPC: C08K9/08
Filed: 1971-07-28
Abstract: 1363304 Glass fibre reinforced polyolefin compositions SUMITOMO CHEMICAL CO Ltd 28 July 1971 [30 July 1970 29 Dec 1970] 35543/71 Heading C3P Compositions comprise (1) a polyolefin, (2) 5 to 60 weight per cent of glass fibres and (3) 0À1 to 25 weight per cent of a copolymer containing 0-1 to 95 weight per cent of unsaturated epoxy monomer units, having an intrinsic viscosity of 0À1 to 4À5 dl./g. in tetrahydronaphthalene at 135 C. and prepared by copolymerizing 5 to 99À95 parts by weight of ethylene, 0À05 to 95 parts by weight of unsaturated epoxy monomer and up to 50 parts by weight of vinyl acetate. The polyolefin may be a polymer of ethylene, propylene, butene-1 or 4-methylpentene-1. The glass fibre may be pretreated with a silane coupling agent, e.g. vinyl triethoxysilane, vinyl tris-(methoxyethoxy)silane, γ-methacryloxypropyl trimethoxysilane and γ-glycidyloxypropyl trimethoxysilane, and may be bundled with polyvinyl acetate, polyester or epoxy resin as binder. The copolymer may be derived from ethylene; vinyl acetate and a glycidyl ester of an unsaturated acid, an unsaturated glycidyl ether or an epoxyalkene. An example describes the copolymerization of ethylene with glycidyl methacrylate and vinyl acetate in the presence of t-butyl peroxy-2-ethylhexanoate; and the preparation of compositions of the resulting copolymer and glass fibres together with polyethylene.
Patent GB-1255654-A (GB)
Title: Improvements in or relating to character recognition systems
Inventor: SARAGA PETER
IPC: G06V30/10
Filed: 1968-07-26
Abstract: 1,255,654. Character recognition. MULLARD Ltd. 28 March, 1969 [26 July, 1968], No. 35873/68. Heading G4R.  Apparatus for processing a thin digitized character so as to effectively reconstruct the character by joining the points into continuous lines uses alternately (a) a forward search with a biased direction to find successive points of a line, stopping at a line end or on detection of a loop, (b) a radial search from the points of the line found to locate further points which are then joined to the line. The invention is applied in a character recognition system to a digitized character, thinned to one bit thickness as in Specification 1,153,703 or 1,255,653. Successive points are joined by a join from one matrix point to the next along a row (2 possible directions), column (2 directions) or diagonal (4 directions), or by a sequence of such joins. The forward search conducted from a given point on the line is biased in that one of the 8 directions taken by the (last) join leading to the given point and consists of considering matrix points ahead and to the sides of the given point in turn giving priority to those nearest to the given point and closest to the ahead direction until a black point is found. This point is marked. The co-ordinates of the character (black) points are stored in a list of character points in a computer store. The list is initially searched for an unmarked point (the sequence can be restarted if it terminates prematurely), from which a radial search pattern is conducted to locate another black point which is marked and a forward search in the (last) join direction performed, this being repeated to trace out the character line until a forward search gives no result (line end) or arrives at an already marked point (loop). Then a radial search is performed, the first point in the search pattern being considered starting from each marked point (these having been placed in an output list) in turn, then the second point in the search pattern starting from each marked point in turn, and so on until a black point is found, this being marked. The radial search pattern is a (digitized) outwardly progressing spiral. In the above process of alternating searches, which continues until all the character points are marked (" used "), line-end points are marked once, points at line junctions are marked three or more times, other points are marked twice, and small loops and small line segments are ignored. Line ends and junctions are detected on the basis of number of marks, in the output list. Loops (of sufficient size) were marked in a results list as they were detected. The searches used respective search lists of increments (to point co-ordinates). During operation, lists of ends and junctions are formed, and the mean directions of lines joining them are stored, together with whether the lines are essentially straight or curved.
Patent GB-774224-A (GB)
Title: Improvements relating to fastening devices for hinged drop-sides or tail-boards of vehicles, or for other hinged parts
Inventor: COOK FREDERICK THOMAS
IPC: B62D33/03
Filed: 1954-12-11
Abstract: 774,224. Fastenings; cotters. PERKS & SON (FORGINGS), Ltd., J. Dec. 9, 1955 [Dec. 11, 1954], No. 35930/54. Classes 44 and 89 (2). A fastening device for hinged drop-sides or tail boards of vehicles, or other hinged parts. of the kind comprising a peg or projection 3, Figs. 2 and 4, adapted to be secured to a fixed pillar 5 of a vehicle or some other fixed part, and to be engaged by an eye or staple 9 on a drop-side or tail-board 2 or other hinged part, a captive locking bar or cotter 10 being loosely retained between the sides of a forked outer portion of the peg or projection 3 and the bar or cotter 10 being movable from the position shown in Fig. 4, in which the eye or staple 9 is allowed to pass over the peg or projection 3 to a locking. position, Fig. 2, in which it holds the eye or staple in place on the peg or projection is characterized in that the bar or cotter 10 is supported in the position shown in Fig. 4 by having a notch 15 in its lower edge 11 engaging over a transverse pin or member 8 between the sides of the forked end of the peg 3 and when moved to its locked position the cotter 10 is disposed between the pin 8 and the end wall 17 of the slot 7 in the peg 3. Referring to Fig. 4, the cotter is prevented from clockwise rotation by a corner 16 engaging the wall 17 and upward movement of the cotter is prevented by a shoulder 18 abutting the pin 8. Displacement of the cotter from the peg in a vertical direction is prevented by the shoulder 18 or a shoulder 11d on the cotter engaging the pin 8. The peg may have a screwed shank and be secured to the tail-board by a nut instead of being riveted thereto as. shown. Moreover, in a modification the cotter may have an enlarged head to prevent downward displacement from the peg and at its inner end a transverse pin, the opposite ends of which are engageable with recesses in the lower edges of the side walls of the forked portion of the peg.
Patent GB-914182-A (GB)
Title: An improved method of and means for hydrostatically driving vehicles or operating lifting or hoisting mechanisms and the like and a control device therefor
IPC: F16H61/46
Filed: 1959-10-23
Abstract: 914,182. Hydraulic transmission of power. STAHLWERKE BRUNINGHAUS G.m.b.H. Oct. 23, 1959 [Oct. 23, 1958], No. 35998/59. Class 69 (2). A method of controlling a hydrostatic drive for a vehicle, lifting and hoisting mechanism and the like, comprising a pump 1, driven by a prime mover 25, and one or more hydraulic motors 2, the pump and motor being of the axial piston-type and adjustable by a control pressure separate from the working pressure, consists in adjusting the pump and the motor or motors simultaneously by the control pressure which is automatically varied through adjusting means responsive to one or more working values of the drive, such as rotational speed, torque, current absorption of the motor driving the pump, or the like. The primer mover 25, which may be a diesel engine, also drives an auxiliary pump 17 which supplies fluid to one side 3c of a piston 3, the other side 3b of which is connected to the adjustment member of the motor and subjected to the pressure in a line 5 connecting the pump 1 to the motor 2. The pressure from the auxiliary pump is controlled by a spring-loaded relief valve 18, the tension in the spring being varied by a foot pedal 19 or the like. The pressure from the auxiliary pump is also supplied to one face of the piston 22, a pressure-responsive device movable against a spring 24 to control the delivery from the pump 1. The pressure in the line 20 from the auxiliary pump, in addition to being controlled by the relief valve 18, may be controlled by an additional relief valve 27 controlled by a governor 26 driven by the prime-mover. The governor 26 and a governor controlling the prime mover may control the relief valve and prime mover through cams having a shape corresponding to the torque and consumption curve of the prime mover. Means may be provided for shutting-off and reversing the circulation of liquid to reverse the direction of rotation of the motor. If the prime mover is electric, the control is effected by current relay magnets.
Patent GB-429367-A (GB)
Title: Process for the production of wholly crystalline refractories from zircon by fusion
IPC: C04B35/48
Filed: 1933-12-21
Abstract: Crystalline zirconia is obtained by fuzing zircon at a temperature of at least 2000 DEG  C., and removing the vitreous silica from the cooled product by treatment with hydrofluoric acid. Alternatively the bulk of the silica may be removed as a soluble silicate, as by fritting the fusion product with an alkali carbonate and washing with water, and the last traces of silica be then removed by hydrofluoric acid.  Crystalline refractories may be obtained by fuzing zircon with a metallic oxide such as alumina, lime, or magnesia to give a mixture of crystalline zirconia and a crystalline silicate of the added oxide.  By adding zirconia or silica to the mixture to be fuzed the relative proportions of zirconia and silicate in the product may be varied.  In one example, a refractory is obtained by fuzing 17,5 per cent of zircon with 82,5 per cent of bauxite containing 45 per cent of alumina and 40 per cent of silica.  By fuzing 20--30 per cent of zircon with 80--70 per cent of alumina a body suitable as an abrasive or as a refractory is obtained, whilst the fusion product of 70 per cent zircon and 30 per cent alumina forms an electric insulator.ALSO:Crystalline refractories may be obtained by fusing zircon with a metallic oxide such as alumina, lime, or magnesia to give a mixture of crystalline zirconia and a crystalline silicate of the added oxide.  By adding zirconia or silica to the mixture to be fused the relative proportions of zirconia and silicate in the product may be varied.  In one example, 17,5 per cent of zircon is fused with 82,5 per cent of bauxite containing 45 per cent of alumina and 40 per cent of silica.  In other examples 20-30 or 70 per cent of zircon is fused respectively with 80-70 or 30 per cent of alumina.
Patent GB-765076-A (GB)
Title: Improvements in electro-luminescent devices
Inventor: CLARKE MAURICE GEORGE
IPC: H05B33/24
Filed: 1953-12-29
Abstract: 765,076. Electroluminescence. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 22, 1954 [Dec. 29, 1953], No. 36080/53. Class 39(1). In an electroluminescent plaque 1 a layer 6 of high dielectric strength positioned between the phosphor layer 5 and one electrode 6 functions as a reflector. The material may be titanium dioxide or barium titanate, produced in the former case by passing titanium tetrachloride and water vapour over the surface at 100<o>-200<o>C. A thin layer of methacrylate applied to the surface to be coated protects it from the hydrochloric acid produced in the reaction. The layers 4, 5 may be or include a synthetic resin e.g. polybutyl methacrylate.
Patent GB-379950-A (GB)
Title: Improvements in or relating to impedance bonds for railway systems
IPC: B61L23/16
Filed: 1931-12-31
Abstract: 379,950. Railway signalling systems. GENERAL RAILWAY SIGNAL CO., Rochester, New York, U.S.A.-(Assignees of Reichard, W. H.; 74, Colgate Street, Rochester, New York, U.S.A.) Dec. 31, 1931, No. 36114. Convention date, Jan. 16. [Class 105.] In an alternating current track relay system with connected impedance bonds 11, 12 at the ends of each insulated section for the passage of the propulsion current, the bond at the track relay end of a section is supplied with magnetizing flux by current from a source separate from the track circuit current in such a manner that the induced voltage in the impedance is of a predetermined value with respect to the track circuit signalling current and is in opposition thereto whereby the track circuit current flows almost wholly to the track relay TR. A thermionic valve is preferably used as the separate source, the grid G of which is connected to a tapping on a potentiometer resistance AI across the track relay TR. The anode circuit includes an inductance 18 by which the opposing voltage in the impedance bond- 12 is produced and an eliminator E comprising rectifiers 21, 22 and a transformer 20 to give the required anode voltage.
Patent GB-523774-A (GB)
Title: Improvements in the production of artificial textile materials
IPC: D06M13/192
Filed: 1938-12-12
Abstract: 523,774. Treating artificial filaments &c. with esterifying agents. DREYFUS, H., and MONCRIEFF, R. W. Dec. 12, 1938. Nos. 36180/38. 36288/38 and 4823/39. [Class 2 (ii)] Artificial yarns, filaments, and other textile materials containing organic derivatives of cellulose which contain free hydroxy groups, are subjected to esterification with a poly basic organic acid halide at a temperature above 100‹C. under such conditions that their structure is retained. Halides of adipic, phthalic, oxalic, and succinic acids may be used. The materials treated may be in the form of staple fibre or continuous filament yarns in the form of hanks, or present in woven, knitted, or netted fabrics. The acid halide may be used in solution in an organic liquid, e.g. kerosene, toluene, xylene, or mesitylene. The esterification liquid may contain also a small proportion of a polybasic acid anhydride. Fabrics may be treated on a winch. Removal of hydrohalide acid may be assisted by bubbling nitrogen through the liquid. In an example, high tenacity cellulose acetate yarn is treated with a boiling solution of adipyl chloride in toluene. In another example, an undyed fabric made of cellulose acetate yarn is treated with a boiling solution of phthalyl chloride and phthalyl anhydride in xylene. It is then treated with boiling acetone and finally with a dilute solution of wax in acetone. The materials treated may be of cellulose acetate, benzoate or other ester, or of ethyl cellulose or other ether. The treatment imparts increased resistance to water and heat and increases the melting point and safe ironing point. The Provisional Specifications describe also the use of malonyl, chlorphthalic, carbonyl. thionyl, and sulphuryl halides, and refer to the treatment of films and other articles.
Patent GB-1308265-A (GB)
Title: Centrifugal separators
IPC: B04B1/14
Filed: 1971-08-02
Abstract: 1308265 Discharging sludge from centrifuge WESTFALIA SEPARATOR AG 2 Aug 1971 [20 Aug 1970[ 36318/71 Heading B2P  A centrifugal separator comprises a drum incorporating a separating chamber 1, one end of which is defined by a piston valve 3, and a hood 9 in the drum which overlies a portion of the piston valve, the latter having a projection 3a which is sealingly guided with respect to the hood and forms therewith a chamber 13 into which, when the separator is operated, control fluid is admitted to exert pressure on the piston valve to retain it in its fully opened position during emptying of the separating chamber. The other end of the chamber 1 is defined by the drum cover 2. Seals are provided at 14, 15. In operation, the drum is rotated and control liquid is supplied to a collector channel 4 and flows first via a passage 5 to maintain a valve 6 in the closed position. When the passage 5 has filled up, the control liquid flows through a passage 7 into a chamber 8 to move the piston valve 3 into the closed position. After filling of the chamber 8, the chamber 13 is filled with control liquid which passes from the. chamber 8 into the chamber 13 via a passage 16, this chamber remaining full during centrifuging. When sludge is to be discharged from the chamber 1, the control liquid supply is shut off whereby the valve 6 opens and allows the liquid to flow out of the chamber 8. In so doing, the piston valve 3 moves downwards defining with the cover 2 an annular gap through which sludge is discharged. During discharge of the sludge, the pressure exerted by the contents of the chamber 1 upon the piston valve in the opening sense becomes progressively smaller but the continuous liquid pressure prevailing in the chamber 13 ensures that the piston valve remains in its fully opened position. The chamber 8 may be provided with a calibrated discharge passage 17 in place of the valve 6.
Patent GB-500636-A (GB)
Title: Method of manufacturing receptacles or containers of paper or like material, and receptacles or containers resulting therefrom
IPC: F02M23/00
Filed: 1937-08-05
Abstract: 500,636. Synthetic resin compositions. SEALCONES, Ltd. Aug. 5, 1937, No. 36444/38. Convention date, Oct. 17, 1936. Divided out of 500,474. Drawings to Specification. [Class 2 (iii)] [Also in Groups XVII and III] The blanks for forming paper or like containers are coated on the inner surface with thermoplastic adhesive material such as a mixture of a synthetic resin and paraffin wax in a solvent with or without a plasticizer, this material serving under the influence of heat and pressure to cause the adherence of the parts. Specification 500,474, [Group III], is referred to.
Patent GB-1470725-A (GB)
Title: Rotary connector for connecting an electric lead to an electri cal appliance
IPC: H01R35/00
Filed: 1975-09-04
Abstract: 1470725 Rotary mounting for an electric lead KABEL UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 4 Sept 1975 [16 Jan 1975] 36482/75 Heading H2E A rotary connector for connecting an electric lead to a rigid easing of an appliance, has a bearing ring 5 made of nylon or metal fixed round the connector body 4 of lead 1 which has contacts 2 and 3 coaxially disposed and mating with corresponding fixed contacts on the appliance, and a counter bearing surface on the casing 6, which optionally has a counter bearing surface 7 which may be of the same material as ring 5. The rotary connector is produced by first connecting the contact ring 2 and pin 3 to the conductors of lead 1; the assembly is then placed, with bearing ring 5, in an injection moulding apparatus wherein the connector body 4 is moulded around the lead 1, the ring 5 is integrally incorporated in the connector body 4 and insulation is provided between the contact ring 2 and pin 3.
Patent GB-1273493-A (GB)
Title: Improvements in or relating to apparatus for treating threads or webs with liquid, steam or gases
IPC: D06B5/26
Filed: 1970-07-28
Abstract: 1,273,493. Treating materials with fluids. HEBERLEIN & CO. A.G. 28 July, 1970 [7 Aug., 1969], No. 36524/70. Heading D1L. In an apparatus for treating thread or weblike materials with liquids, steam or gases, the material 43 is wound around a drum which is rigidly mounted on a shaft and rotatable about its longitudinal axis. The shell 1 of the drum has at least one coaxial and perforated tube e.g. 17, 22, 27, 29, 31, 33 disposed around it and spaced from it by walls which are transverse to the axis and which divide the space between the shell and the perforated tube or tubes into closed chambers, e.g. 20, 25, 28, 30, 32, 34. These closed chambers are linked by supply conduits 37, 38, 39, 40, 41, 42 to distribution chambers 7, 11 located at the ends of the drum to which the treatment medium is delivered.