baber/WOPTO huggingface dataset:
Patent GB-1205890-A (GB)
Title: Flash removal
IPC: B29C45/17
Filed: 1968-06-12
Abstract: 1,205,890. Blow-moulds; flash removal. PROCTER & GAMBLE CO. 12 June, 1968 [19 June, 1967], No. 27950/68. Heading B5A. Flash is removed from articles moulded in a multipart mould by means which are fixed relative to the mould parts and which engage the flash at at least two spaced points on opposite sides of the flash. As shown in Fig. 1, blow mould halves 20, 20a have co-operating faces 22, 22a defining cavities 24, 24a and having relieved flash-receiving areas 26, 26a, 28, 28a, 30, 30a, 32, 32a separated from cavities 24, 24a by pinch-off lines P. Flash is formed in the shaded regions of Fig. 1. The engagement means may be a recess 48 (also Fig. 12, not shown), preferably conical, and angled to the normal to the plane of the flash, e.g. by greater than 60 degrees. Alternatively, the engagement means may be an angled slot (54, Figs. 7, 7a, not shown), a dovetail recess (54a, Figs. 8, 8a, not shown), or a tapered projection (55, Figs. 9, 9a, not shown). Flash is removed on mould opening by twisting due to the couple exerted by the engagement means (see also Fig. 11, not shown). The flash-contacting face opposite the engagement means may be provided with a raised area 58 so as to divert material into the engagement means.
Patent GB-379541-A (GB)
Title: Improvements in and relating to methods of insulating electric conductors
IPC: H02K15/12
Filed: 1931-10-08
Abstract: 379,541. Insulating dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Fiene, M. E. ; Ballston Lake, New York, U.S.A.) Oct. 8, 1931, No. 28005. Convention date, Oct. 8, 1930. [Class 35.] Electrical coils such as the stator coils of a dynamo are insulated with paper, cotton, or other fibrous material which may be mixed with asbestos fibres. After winding the stator, inert inorganic filling material such as silica, preferably of 20-30 mesh, is introduced through openings 8 in end shields 4 to fill the space between the coil turns. To impregnate, the stator is placed in a bath 9 with a removable cover 10 and inlet and outlet pipes 11, 12, respectively, for the impregnating fluid. Valve mechanism 16 in a pipe 15 controls suction and pressure lines 17, 18 respectively. The bath 9 is exhausted of air and impregnating fluid such as sodium or potassium silicate is run in until the stator is covered. Suction is now cut off and pressure of about 100 pounds per square inch for one hour applied. The stator is then removed and baked in inert gas or a vacuum at a temperature, viz. 400‹ C., high enough to decompose to a stable compound the cellulosic material of the insulation and to set the impregnating fluid firmly to bind the conductors in place. A second impregnation and baking is carried out, and the coil may then be impregnated at a temperature between 100‹ C. and 600‹ C. with lead borate, lead chloride or sulphur so as to seal any pores which may be present.
Patent GB-874754-A (GB)
Title: Improvements in or relating to hardenable epoxide resinous compositions
Inventor: LEWIS REGINALD NORMAN
IPC: C08G59/50
Filed: 1958-09-02
Abstract: Hardened epoxide resins are made by hardening at room or higher temperature a composition comprising an epoxide resin containing more than one but not more than two epoxy groups per average molecule, either a catalytic amine hardener or an amine addition hardener which to bring about cross-linking must contain more than two active hydrogen atoms attached to nitrogen atoms per molecule and, as a reactive diluent a primary amine.  The diglycidyl ether of bis-phenol is the specified epoxy resin and specified amine hardeners are diethylethanolamine and diaminodiphenyl methane whilst specified reactive diluents are 2-ethyl hexylamine, n-butylamine, benzylamine, aniline and cyclohexylamine.  In the examples, an epoxy resin is hardened by reaction with: (1) diaminodiphenyl methane or diaminodiphenyl methane and 2-ethylhexylamine, (2) diethyl ethanolamine or diethylethanolamine and aniline and (3) diethylethanolamine or diethylethanolamine and cyclohexylamine. Specification 799,717 is referred to.
Patent GB-994416-A (GB)
Title: Improvements in or relating to block polymers
Inventor: KHELGHATIAN HABET M
IPC: C08F297/06
Filed: 1961-08-02
Abstract: Block polymers consisting of either two or three sections are made by contacting propylene at a pressure of at least 15 p.s.i.g. with a catalyst system consisting of a subhalide of a Group IVa, Va or VIa metal and an activator therefor selected from hydrides, borohydrides, alkyls, alkylhalides and arylhalides of aluminium, zinc, beryllium, chromium, lithium, magnesium, lithium, sodium, potassium and lead, in an inert hydrocarbon reaction medium, whereby a crystalline polypropylene section is produced which is insoluble in the reaction medium, then contacting the catalyst system with a mixture of propylene and an olefine of the formula CH2= CHR, wherein R is hydrogen, a C2-C6 alkyl radical, a phenyl radical or an aralkyl radical in which the alkyl group contains 2 to 6 carbon atoms, to produce a copolymer section attached to the polypropylene section, and then either separating the resulting block polymer from its reaction medium, or continuing polymerization with one or more olefines other than propylene to produce a third polymer section attached to the previously formed sections, and then separating the resulting block polymer, in either instance the product being a solid, substantially crystalline block polymer which contains only one polypropylene section, and which contains from 80 to 99.8% by weight of units derived from propylene.  The examples describe the preparation of block copolymers from propylene and ethylene, with the use of a catalyst composed of titanium trichloride and aluminium diethyl chloride.  Specifications 838,996, 886,093, 915,622, 925,571, 927,815, 935,781, 935,782, 935,783, 935,927, 937,557, 937,558, 939,592 and 949,718 are referred to.
Patent GB-283454-A (GB)
IPC: B61L5/06
Filed: 1927-10-22
Abstract: 283,454. General Railway Signal Co., (Assignees of Howe, W. K.). Jan. 12, 1927, [Convention date]. Ground levers; electric control transmission mechanism applicable generally.-A selector comprises a casing 1 carrying a point rod 9, a rod 7 connected to a points-motor and a rod 10 connected to a ground lever 12, a handle 33 being provided to actuate with lost motion a depending finger 24 to couple rod 9 with either of the rods 7, 10. The lever 12 operates through gearing 15, 16 and crank 14 a rod 18 coupled at 20 to a rod 10. The finger 24 is slidable along a square shaft 26 provided with a member 27 having spaced ears engaged by a lug on a cam 30 fixed to a shaft 31 actuated by the handle 33. Handle 33 is held by latches 35. Cam 30 also engages an arm 36 carried by the shaft 38 of a contact-maker in the circuit of an electric points-motor. The contact breaker may carry contacts for additional purposes. The travel of rod 7 is set by a stop 47 engaging a screw 48 and by the rod itself engaging a screw 49. Specification 271,418 is referred to.
Patent GB-960465-A (GB)
Title: Electric batteries
Inventor: WEBBERLEY MICHAEL JOHN
IPC: H01M6/32
Filed: 1961-08-03
Abstract: 960,465. Defined action batteries. ULTRA ELECTRONICS Ltd. Aug. 2, 1962 [Aug. 3, 1961], No. 28202/61. Heading H1B. By the addition of a salt having a positive heat of solution to the cell in its dry condition, when the cell is activated the heat of solution released assists in raising the temperature of the cell. Chlorides of magnesium and aluminium are used with a sodium chloride electrolyte.
Patent GB-230883-A (GB)
Title: Improved manufacture of pigment colours and coloured powders
IPC: C09C3/06
Filed: 1923-11-09
Abstract: 230,883. Sanders, L. A., and Roth, K. A. Nov. 9, 1923. Pigments.-Pigments or coloured powders which are converted into pigments by calcination are obtained by precipitating an inorganic coloured substance from an aqueous medium upon a large excess of a finely-divided inorganic carrier such as chalk, natural or Portland cement, ground shells, soapstone, gypsum, infusorial earth, trass, kaolin, marl, feldspar, hornblende, asbestos, loam, fluorspar, lime. waste, marble, pumice, mica, or dolomite. The coloured precipitate is produced by the action of one or more metallic salts on each other or on a base, oxide, acid, or oxidizing or reducing agent. The carrier may take part in the reaction, as in the case of chalk, or it may be itself produced simultaneously with the colouring agent by reaction between two salts, e.g. barium chloride and sodium sulphate. Organic substances, e.g. alizarine, may be added to the reacting mixture to modify the colour of the precipitate, and colloidal substances such as aluminium hydroxide or casein may be used to after its dispersion. Specifications 7157/97, [Class 87, Moulding &c.]; 17836/02 and 5763/05, [both in Class 22, Cements, &c.], and 195,463 are referred to.
Patent GB-438549-A (GB)
Title: A new and improved screw-threading machine for forming taper threads
IPC: B23G1/04
Filed: 1934-10-03
Abstract: 438,549. Screwing; die-heads. KENDALL & GENT (1920), Ltd., and HALL, J. L., Victoria Works, Gorton, Manchester. Oct. 3, 1934, No. 28283. [Class 83 (iii)] In a screw-threading machine of the kind employing a rotary die-head which is opened and closed by a lever or yoke engaging a grooved sleeve thereon, the feed motion between the work and die-head is arranged to impart movement to the fulcrum of the yoke for the purpose of cutting a tapered screw-thread. The machine comprises a rotary die-head f and a work-holder a movable to and from the diehead along the bed e. A bracket b on the workholder is slidable on a rod c pivoted to a lever g mounted on a fixed pivot on the machine. The lever g is slotted and connected to a slotted lever h by means of a link i adjustable in length so that the movement of the lever g may be transmitted to the lever h in variable amounts for giving different tapers to the work, or may be reversed by slotting the lever h beyond its central pivot. A toothed segment l on the lever h engages a pinion m on a shaft n which carries a further pinion o, Fig. 3, engaging a rack on a sleeve p splined in the headstock casing x. A rod q is prevented from moving axially within the sleeve p by means of a collar q<1> and lock nuts q<2> and carries a transverse shaft r which is connected to a shaft u by links s, t. The shaft u forms the fulcrum about which oscillates the yoke v, Fig. 2, which operates the die-head f. When the bracket b engages an adjustable stop d on the rod c the rod is moved forwards with the work-holder and the yoke v is rocked to open the die-head slowly and cause a taper thread to be cut. On completion of the threading operation a bracket on the opposite side of the work-holder engages an adjustable stop on a rod pivoted to the hand lever which rocks the yoke v about the shaft u, thereby opening the die-head to disengage the chasers from the work. The cutting size of the die-head may be varied by rotating the rod q through a hand wheel 7, whereby the position of the shaft r on the screwed portion of the rod is adjusted to alter the location of the shaft u, a pointer on the shaft r being visible through an aperture in the headstock to indicate the size. The rod is locked within the sleeve p by means of a hand-operated set-screw 9. For cutting parallel threads, movement of the sleeve p is prevented by a pivoted stop 8 engaging a recess therein and the stop d is moved out of the path of the bracket b. The die-head may be opened at any time by rocking the yoke v about the shaft u by means of the hand lever (not shown), and the die-head may be fed instead of the work-holder.
Patent GB-1062606-A (GB)
Title: Engine fuel
IPC: C10L1/14
Filed: 1964-07-19
Abstract: Fuels, e.g. gasoline, diesel, contain an additives of (a) 1 to 50% of a condensate of 1 mole of a polyethanolamine and 1-2 moles of one or more C9+ fatty acids; (b) 1 to 50% of a high boiling ester or esters of fatty, aromatic hydro-aromatic or naphthenic acids; and (c) 10 to 90% of a refined mineral oil of a viscosity of 1.6 DEG  E/20 DEG C. to 15 DEG  E/50 DEG  C.  The oil may be partly replaced by Fischer-Tropsch hydro-carbons or alkyl benzenes. Specified esters are glycol mono oleate, ethyl laurate and benzoate, isopropyl and cresyl naphthenates, cresyl and oleyl acetates and methoxy butyl esters of acetic and methoxy acetic acids, amongst others.
Patent GB-463448-A (GB)
Title: An improved chair or lounge for medical treatment
IPC: A61G5/10
Filed: 1935-10-14
Abstract: 463,448. Therapeutic heating- appliances. RYNER,H. Oct. 14, 1935, No. 28300. [Class 81 (ii)] [Also in Group XIV] In a heated chair-bed for medical purposes ,sockets 3b on the back take heater sleeves, shown in dotted lines. The sleeves are made of copper and asbestos, are formed of hinged halves and are adapted to enclose the forearm and upper arm. The heat passes by conduction to the various points of the chair. Specification 460,200 is referred to.
Patent GB-720293-A (GB)
Title: Joint pin for tubular scaffolding
IPC: E04G7/20
Filed: 1951-12-03
Abstract: 720,293. Scaffolding. NORDGARD, P. O. Dec. 3, 1951, No. 28344/51. Class 20 (2). A joint pin for tubular scaffolding comprises a rod or tube 1 with an outer tube 5 welded or riveted centrally thereon, the ends of the rod or tube 1 forming spigots over which vertical scaffolding tubes are slid to abut against the outer tube 5 which is provided with three or four apertured coupling plates 2 for connection of the horizontal and diagonal members of the scaffolding.
Patent GB-191860-A (GB)
Title: Improvements in or relating to perambulators and the like
IPC: B62B9/18
Filed: 1921-10-26
Abstract: 191,860. Hallas, H. W. Oct. 26, 1921. Springs, arrangement of.-In a perambulator having the. body supported by straps from a spring frame the main suspension springs are secured to or mounted on longitudinal members which constitute auxiliary springs, and are so arranged that resilient or elastic devices may be interposed between the main and auxiliary springs. The suspension springs B, Fig. 1, are mounted on a pair of longitudinal spring members C, D separated from each other bv a block E. The member D is secured to the axles G, and four spiral springs F are interposed between 'the members C, D. The axles are connected by diagonal stays, and the springs B on each side of the perambulator are connected by a central transverse stay. In a modification, the member C and two of the springs F are omitted. In the further modification shown in Fig. 5, two auxiliary spring members K are connected to the spring B, and one or more springs F, L are interposed between each member K and the spring B.
Patent GB-253790-A (GB)
Title: A plated metal band for binding together rolled joints of meat
IPC: A22C7/00
Filed: 1925-11-13
Abstract: 253,790. Bradbrook, L. G. Nov. 13, 1925. Band clips. - A plated metal band for binding rolls of meat consists, as shown in Fig. 1, of a strip having at one end a triangular hole, and, at the other end, a number of correspondingly shaped projections, any one of which is adapted to be engaged with the hole according to the size of the roll of meat. Specifications 13965/87, [Class 109, Ropes &c.], 14694/92, 9792/04, 17444/05, [Class 99, Pipes &c.], 18306/05, and 8718/13 are referred to.
Patent GB-1047010-A (GB)
Title: Fertilizers
IPC: C05C9/00
Filed: 1965-07-06
Abstract: Prilled urea containing chlorocholine chloride is applied as a top dressing to cereal plants. The prills are formed by adding 1-4% of the chlorocholine chloride as a solid to a urea melt containing 10-20% of water, homogenizing by stirring or bubbling an inert gas, and spraying the mixture into the head of a tower.
Patent GB-976034-A (GB)
Title: Centre contact for power rectifier stacks
IPC: H01L25/07
Filed: 1963-07-19
Abstract: 976,034. Semi-conductor rectifier stacks. STANDARD TELEPHONES & CABLES Ltd. July 19, 1963 [July 25, 1962], No. 28621/63. Heading H1K. Each rectifier element 3, Fig. 1, is mounted in or on a solid metal member such as la and is connected through a lead 5 (preferably flexible) to a terminal element 6 in the form of a tag (of which three possible patterns are shown in Fig. 2) which is placed on the stack bolt or the like as contacting element to the adjoining metal member or end plate, an insulating ring 7 spacing each metal member from an adjacent metal member or end plate.
Patent GB-886838-A (GB)
Title: Improvements in textile machines
Inventor: SCRAGG FREDERICK
IPC: D02G1/06
Filed: 1959-08-22
Abstract: 886,838. Crimping yarns; twist-tubes &c. SCRAGG & SONS Ltd., ERNEST. Aug. 4, 1960 [Aug. 22, 1959], No. 28787/59. Addition to 876,169. Classes 120(2) and 120(3) A false-twist device comprises at least one set of four rotatable rollers, at least one of which is driven, forming therebetween two cusps in which two yarn-twisting members e.g. tubes or bars through or around which yarn passes, are supported and rotated upon rotation of the driven roller(s). As shown tubes 11, 12, through which yarns 23, 24, pass in opposite directions, are supported by roller pairs 13, 14; 15, 16; 17, 18 and 19 20, at least one of which is resiliently urged towards the others to press the tubes into the cusps, and are rotated in the same direction thereby. Each tube has collars 21, 22, with curved faces engageable by adjacent roller sets to limit endwise movement of the tubes in axial direction, and flared ends to facilitate entry and departure of the yarns at such an angle to the axes of the tubes as also to limit such movement. If two yarns are to be similarly twisted, the tube axes may be vertical and the pull of yarns passing upwardly through the tubes may balance the weight thereof. In a yarn-crimping apparatus, Fig. 4 (not shown) incorporating the device of Figs. 1 and 2, the yarns 23, 24 both pass through a heater before entry to the false-twister so that opposite twists are set therein: the crimped yarns, having opposite residual torque, may thereafter be plied.
Patent GB-787466-A (GB)
Title: Improvements in or relating to speed regulating systems for direct-current electric motors and rotary convertors
IPC: H02P7/30
Filed: 1954-10-06
Abstract: 787,466. Control of D.C. motors. MACKIE & CO., Ltd., W., and MUNNS, S. A. Sept. 28, 1955 [Oct. 6, 1954], No. 28813/54. Class 38 (3). [Also in Groups XXXV and XXXIX] In a speed control system for a D.C. motor or a motor-alternator set, a D.C. voltage proportional to speed is applied to a bridge circuit including a non-linear element, the bridge output, representing the deviation of said D.C. voltage from a datum value, being applied to a magnetic amplifier whose A.C. output is rectified for application to a field of the motor whereby to restore the speed. As shown, a D.C. voltage derived from a permanent magnet type or other D.C. generator is applied to a bridge circuit 13 including a constant voltage gas discharge tube 14, a variable resistor and a tapped potentiometer 16, whereby the bridge output to a control winding 21 of the first stage 22 of a magnetic amplifier 20 is of a sense and magnitude representative of the speed deviation from a value set by the tapping on potentiometer 16. The amplifier comprises also a second stage 46 fed in parallel with the first stage from an A.C. source 25, the rectified output of the first stage being applied to the control winding 45 for the second stage and the rectified output of the second stage being applied to an auxiliary motor field 31 connected to aid or oppose the main field 11, whereby to restore the motor speed to the value set on potentiometer 16. A positive feedback winding 33 for first amplifier stage 22 is energized by the rectified output of this stage and a negative feedback winding 35 for the first stage is energized over a condenser 34 in response to any A.C. component in the rectifier output to field 31 resulting from a tendency of the system to hunt. The motor may drive an A.C. generator of various specified types from which a D.C. proportional to speed is derived through a bridge rectifier. The supply for the magnetic amplifier may be obtained from the A.C. generator, and the amplifier output may be connected in series with a D.C. source for jointly supplying a single motor field.
Patent GB-818374-A (GB)
Title: Perborate composition and a method for its production
IPC: C01B15/12
Filed: 1955-07-21
Abstract: An aqueous slurry containing sodium perborate and sodium tripolyphosphate in the proportion of at least 50 parts by weight of tripolyphosphate per 100 parts by weight of perborate, both on an anhydrous basis, is sprayed into air at 100-315 DEG  C. under conditions such that the water content of the spraydried particles corresponds approximately to 2.5 to 4 mols. for each atom of available oxygen and that the temperature of the perborate does not rise above 100 DEG  C. at any stage, nor its pH above 10.5. The composition may also include dodecyl benzene sulphonate, sodium lauryl sulphate, the compound C2H5CON(CH3).C2H4SO3Na, a polyoxyethylene-isooctyl phenol containing 10 ethylene oxide units per molecule, a sodium silicate of low alkalinity, magnesium silicate, phthalocyanine blue, an alkali metal salt of ethylenediamine tetra-acetic acid, sodium nitrilotriacetate or gluconic acid.ALSO:An aqueous slurry containing sodium perborate and sodium tripolyphosphate in the proportion of at least 50 parts by weight of tripolyphosphate per 100 parts by weight of perborate, both on an anhydrous basis, is sprayed into air at 100 DEG  to 315 DEG  C. under conditions such that the water content of the spray dried particles corresponds approximately to 2.5 to 4 mols. for each atom of available oxygen and that the temperature of the perborate does not rise above 100 DEG  C. at any stage, nor its pH above 10.5. The composition may also include dodecyl benzene sulphonate, sodium lauryl sulphate, the compound C2H5CON(CH3)C2H4SO3Na, a polyoxyethylene-iso-octyl phenol containing 10 ethylene oxide units per molecule, a sodium silicate of low alkalinity, magnesium silicate, phthalocyanine blue, an alkali metal salt of ethylene diamine tetra-acetic acid, sodium nitrilo-triacetate or gluconic acid.
Patent GB-533325-A (GB)
Title: Improvements in blank transfer mechanism in metal working machines
Filed: 1939-10-27
Abstract: 533,325. Blanks, transferring. O'BRIEN, J. F., and WATERBURY FARREL FOUNDRY & MACHINE CO. Oct. 27, 1939, No. 28871. [Class 83 (iv)] In mechanism for transferring a blank from one station 12 to another 13 of an upsetting, extruding, or other machine, a holder 16 is actuated by an adjustable cam by a cam device which can be adjusted so that the length of dwells between its various movements can be varied. The holder 16 is moved through known mechanism by an adjustable link 39 and a lever 33 having an adjustment at 41, a shearing pin 38 and two rollers 35, one in the groove of a cam 28 and the other in that of a cam 29. The cams are each separately adjustable through an angle of 25 degrees relative to the shaft 24 by bolts 32 and slots 31. The portion D of the cam 28 controls the lever 33 during the transfer of the blank from station 12 to 13, during a dwell at station 13, and during the lifting of the empty holder from the station 13 during its return, these periods corresponding respectively to a rotation of the shaft 24 through 105 degrees, 60 degrees and 45 degrees. The portion C of the cam 29 controls the lever 33 during the dropping of the empty holder 16 to the station 12 to receive another blank. Both cams have overlapping circular portions A, B, A corresponding to a dwell of the empty holder during its return and B to a dwell at the station 12. By adjusting the cams the length of the dwell A can be varied from 55 degrees to 5 degrees, while B is varied from 50 degrees to 100 degrees. Each cam has a clearance 49 to prevent its action on the lever 33 when the other cam has control. If there are more than two stations 12, 13 the number of holders is increased to correspond. Variation in the length of dwell is of advantage when heading blanks of various lengths or when partially extruding blanks to produce different diameters.