baber/WOPTO huggingface dataset:
Patent GB-506430-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/02
Filed: 1937-12-01
Abstract: 506,430. Sets. ERICSSON TELEPHONES, Ltd., and HOLLIS, F. Dec. 1, 1937, No. 33184. [Class 40 (iv)] A telephone instrument has a casing shaped so as to provide two distinct resting positions for a hand microtelephone or receiver and is provided with contact operating plungers which are operated when the hand set or receiver occupies one of the positions, but not when it occupies the other. As shown the invention is applied to a wall set comprising a base plate 3 on which the components are mounted and a hinged cover 1 formed with parallel ridges having recesses 11, contactoperating plungers 12 and wings 13 with shaped recesses 16 for accommodating the receiver 14 when the hand-set 10 is temporarily replaced in a substantially vertical position. The hand-set in its temporary position may obscure the dial 17 or may be arranged to operate a mechanical flag signal or to illuminate a warning lamp. The set may incorporate keys 9 for extension working as described in Specification 504,049.
Patent GB-1360604-A (GB)
Title: Static inverter and rectifier/inverter systems
IPC: H02M7/757
Filed: 1971-06-28
Abstract: 1360604 Inverting DEFENCE SECRETARY OF STATE FOR 28 June 1971 [9 July 1970] 33330/70 Addition to 1254425 Heading H2F A polyphase inverter comprises a plurality of A.C.-side and D.C.-side windings on a multilimbed core or plurality of separate cores, at least the D.C.-side windings being connected in a ring, a solid-state switching device being arranged periodically to reverse the polarity at each junction point of the ring, the A.C.-side or D.C.- side windings being graded substantially as described in Specification 1,254,425, so as to provide a substantially sinusoidal output. As shown in Fig. 3a, a large number of thyristors TH1, TH2 are turned on sequentially so as to connect a D.C. supply to tappings between primary windings of an output transformer having graded three-phase secondary windings so as to provide a substantially sinusoidal output. Thyristor TH1 is turned on at 0‹ C., the current rising linearly due to a pulse-spreading inductor T1. At 40‹ C. thyristor TH2 and transistor TK1 are turned on, giving a linear fall in current in TH1 which is thus turned off at 80‹ C. TH2 is similarly turned off by turning on TR2 at 80‹ C. The commutating voltage is regulated in dependence on the supply current. Excess energy is returned to the supply by diode D1. In Fig. 4a, each thyristor TH1, TH2 is turned off by turning off the series-connected transistor TR1, TR2. In Fig. 5 (not shown) line commutation is achieved by connecting the A.C. side to constant voltage busbars. Each thyristor is bridged by a reverse diode so that the system acts as a rectifier if the D.C. voltage becomes reduced. In Fig. 6 (not shown), antiparallel thyristors are employed for rectifying and inverting. In Fig. 7b, a diode bridge is included so as to halve the number of thyristors required in a reversible converter. In Fig. 7a (not shown) the diode bridge is replaced by a mechanical changeover switch. In Fig. 8 (not shown) antiparallel thyristors are replaced by logic triacs, the direction of conductivity of which being determined by the polarity of the trigger pulse. The thyristors may be replaced by transistors (Fig. 1, not shown), Any of the phase proportionate transformers described in Specification 1,254,425 may be employed.
Patent GB-388880-A (GB)
Title: Improvements in and relating to fluid operated torque transmission mechanism
IPC: F16H61/50
Filed: 1931-12-02
Abstract: 388,880. Pneumatic power r transmission. FAY, H., 146, Bidston Avenue, Claughton, Birkenhead. Dec. 2, 1931, No. 33366. [Class 8 (ii).] Apparatus for the transmission of power through a liquid or gaseous working medium comprises bladed impeller and driven rotor members, the relative positions of which mav be adjusted automatically by variation in local pressure or mechanically; the blades may be of aerofoil form, throughout the circuit driving blades alternate with driven blades, and a control valve and brake are provided. In the form shown in Fig. 1, an impeller member 2 forming a casing has blades 3, 3a, and a driven rotor has blades 5, 5a, the blades 3, 5 on one side being of tapered form ; if desired the blades 5a may be less in number than the blades 5, or act merely as guide blades. Pressure fluctuations are absorbed by a spring-pressed piston 14 which may be hollow to contain lubricant, a control valve 9 is provided, and the rotor shaft 11 connected to the final shaft 24 by a flexible coupling 25 is capable of axial movement against the action of a spring 26 to separate the blades 3, 5. Connected levers 30, 33 control the application of a brake 19 to a drum 22 on the shaft 11 and the operation of the valve 9, and also are capable of moving the shaft 11 axially. In a modification, the rotor has a passage 40, Fig. 4, the valve 9 having a lip 9a to control its outlet. In another form, the circuit is axially arranged, rings 38, Fig. 5, being secured to the blade groups, and guide blades 39, 40a being provided.
Patent GB-799904-A (GB)
Title: A rubber vulcanization composition
IPC: C08J3/22
Filed: 1955-11-22
Abstract: A pelleted vulcanization composition for natural or synthetic rubber comprises one or more powdered rubber vulcanization accelerators, a polyisobutylene binder (molecular weight from 100,000 to 200,000) in an amount of from 4 to 10 per cent by weight of accelerator, and a wetting agent comprising a fatty acid containing from 12 to 18 carbon atoms, in an amount of 2 to 6 per cent by weight of accelerator.  The accelerator may be 2-mercapto-benzothiazole and the zinc salt thereof, 3-anilinomethyl-2 (3)-benzothiazolethione, or dibenzothiazyl disulphides, tetramethyl thiuram mono- and disulphides, tetraethyl thiuram disulphide, zinc dimethyl, diethyl, dibutyl dithiocarbamate, bismuthous dimethyl dithiocarbamate, zinc N-pentamethylene, 2,4-dinitrophenyl dimethyl or selenium diethyl dithiocarbamates or mixtures thereof and the wetting agents include lauric, myristic, palmitic, marganic, stearic and oleic acids or mixtures of coconut or palm oil fatty acids and a nitrogen base may be added to form the ammonium mono- or dimethylamine and mono- or diethylamine salts. Lubricants such as glycerine, paraffinic or naphthenic mineral oils, 8-polyoxyethylenemonostearate or 10-polyoxyethylenemonolaurate may be included.  Sulphur may also be included as a vulcanizing agent. The polyisobutylene is added to the blend as a latex and the product pelleted and dried at elevated temperature.ALSO:A pelleted vulcanization composition for natural rubber comprises one or more powdered rubber vulcanization accelerators, a polyisobutylene binder, (molecular weight from 100,000 to 200,000) in an amount of from 4 to 10 per cent by weight of the accelerator, and a wetting agent comprising a fatty acid containing from 12 to 18 carbon atoms, in an amount of 2 to 6 per cent by weight of accelerator.  The accelerator may be 2-mercapto-benzothiazole and the zinc salt thereof, 3-anilinomethyl-2(3)-benzthiazolethione or dibenzothiazyl disulphide, tetramethyl thiuram mono- and di-sulphides, tetraethyl thiuram disulphide, zinc dimethyl, diethyl, dibutyl dithiocarbamate, bismuthous dimethyl dithiocarbamate, zinc N-pentamethylene, 2, 4-dinitrophenyl dimethyl or selenium diethyl dithiocarbamates or mixtures thereof and the wetting agents include lauric, myristic, palmitic, margoric, stearic and oleic acids or mixtures of coconut or palm oil fatty acids and a nitrogen base may be added to form the ammonium mono- or di-methylamine and mono- or diethylamine salts. Lubricants such as glycerine, paraffinic or naphthenic mineral oils, 8-polyoxyethylenemonostearate or 10-polyoxyethylene-monolaurate may be included.  Sulphur may also be included as a vulcanizing agent. The polyisobutylene is added to the latex and the product pelleted and dried at elevated temperatures.
Patent GB-468438-A (GB)
Title: An improved water-heating device
IPC: F24H1/10
Filed: 1935-12-03
Abstract: 468,438. Electric water headers. BRITTAN, E. T., and BRITTAN. R. Dec. 3, 1935, No. 33501. [Class 39 (iii)] A flow heater comprises superposed trays 1 each incorporating an electric heating element 10 and having at its lower end a slot 9, adjacent trays having the slots at opposite ends and being oppositely inclined to obtain a zigzag flow. Water is fed at 5 to a water jacket 3 surrounding the trays and overflows at 4 into a tank 2 with a weir 7 above the trays, which are heated while the tank is filling. The tank is finally emptied by a drain hole. A heating element is placed below each tray and the tank, which are carried by supports and are separately removable, the lowermost tray having a pivoted outlet pipe 11. The element leads are connected to a vertical terminal block placed in a cut-away part of the jacket. The trays may be formed integrally from sheet metal.
Patent GB-951461-A (GB)
Title: Improvements in or relating to substituted 2-phenoxy-cyclopropylamines
Filed: 1960-09-29
Abstract: The invention comprises compounds of general formula: <FORM:0951461/C2/1> in which Z is amino, methylamino or dimethylamino, and R1 and R2 are hydrogen, lower (1-4C) alkyl, lower alkoxy, halogen, amino, nitro or trifluoromethyl; and their cis-trans and d-1 isomers; and their nontoxic pharmaceutically acceptable acid addition salts; and their preparation by thermal decomposition by heating in an unreactive organic solvent of an azide of general formula: <FORM:0951461/C2/2> to yield the corresponding isocyanate of general formula: <FORM:0951461/C2/3> which on hydrolysis by refluxing in mineral acid solution yields amines of the invention, from which dimethylamines may be prepared by reaction with a mixture of aqueous formaldehyde and formic acid, and monomethylamines by refluxing with ethyl formate to give N-formyl compounds which are refluxed in an organic solvent with sodium hydride and methyl iodide to give N-formyl-N-methyl compounds which are then hydrolysed; and their preparation as exemplified including the hydrogenation of a nitro-phenoxy compound to the amino-phenoxy compound.  Azides above are obtained by the action of sodium azide on a mixed anhydride of general formula: <FORM:0951461/C2/4> obtained by treating the corresponding acid with ethyl chlorocarbonate. 2-4-trifluoromethylphenoxy)-ethanol is obtained from the phenol and ethylene chlorohydrin, and on reaction with acetic anhydride yields the acetate which on thermal decomposition yields 4-trifluoromethylphenyl vinyl ether; from this using ethyl diazoacetate is obtained ethyl 2-(4-trifluoromethylphenoxy)- cyclopropanecarboxylate which is hydrolysed to the corresponding acid.
Patent GB-372378-A (GB)
Title: Improvements in and connected with screw propellers
IPC: B63H1/12
Filed: 1930-11-07
Abstract: 372,378. Screw propellers. STONE & CO., Ltd., J., Deptford, London, and TELFER, E. V., 12, Mosley Street, Newcastle-on-Tyne. Nov. 7, 1930, No. 33556. [Class 114.] The driving faces of screw propeller blades are formed with roughenings at or near the leading edge to reduce the velocity of water flow at this point and thus to prevent the formation of negative pressures. The blade a has roughening grooves or serrations b formed near the leading edge c, these being shallow at the leading edge, gradually increasing in coarseness and then gradually fading into the smooth surface of the blade. Similar roughenings may also be provided on the back of the blade.
Patent GB-194767-A (GB)
Title: Improvements in or relating to the electric heating of tools of edge setting and other machines
IPC: A43D95/24
Filed: 1921-12-14
Abstract: 194,767. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Dec. 14, 1921. Burnishing by compression.-In machines, such as edge-setters for burnishing sole-edges of boots and shoes, rapidly reciprocating tools heated by electricity have the current conveyed to them by spiral spring conductors under compression. Edge-setters 20, Fig. 1, either of which can be used by turning a handle 28, are connected to a heating-unit 30 and are rapidly oscillated by an arm 18, as described in Specification 2774/88. This is diagrammatically set out in Fig. 2. The arm 18 is pivoted at 16 to a horizontally moving rod 14 connected to a part 12 on a revolving disc 10. A curved attachment 22 on the arm 18 is pressed against a fixed horizontal surface 24, thus ensuring a straight line movement to the edge-setter 20. Current is passed through a rheostat 34, Fig. 1, to terminals 38, Fig. 3, carried in fixed insulators 42 on the main frame. Current passes to leads 32 through two springs 40 the outer ends of which are pressed against terminals 36 carried in insulators 44 attached to the oscillating arm 18. In applying the invention to machines as described in Specification 7710/05, [Class 17, Boots &c.], wherein the tool swings to and fro the electrical heating unit may be formed to surround the " transverse guide " or iron holder, the sockets for the moving ends of the current-conducting springs being attached to the rear side of the unit, an insulating-block fixed closely adjacent upon the machine frame carrying the opposing sockets, thus dispensing with the leads 32, Fig. 1.
Patent GB-209269-A (GB)
Title: Improvements in or relating to elastic bandages
IPC: A61F13/08
Filed: 1922-12-09
Abstract: 209,269. Edwards, C. E. Dec. 9, 1922. Elastic bandages.-An elastic bandage comprises a strip A of rubber or equivalent pliable and elastic material having one surface smooth and the other rubbed or roughened as at A<1>. The bandage is fastened by means of inextensible tapes B.
Patent GB-1512246-A (GB)
Title: Footwear sole
IPC: A43B13/14
Filed: 1975-08-13
Abstract: 1512246 Footwear sole T FUKUOKA 13 Aug 1975 [1 May 1975] 33722/75 Heading A3B  A footwear sole comprises a resilient sole body 1 provided at a rearward portion with at least one upwardly opening recess 2, and a stiff reinforcing plate 3, serving also as an insole which is mounted on the sole body, so as to cover the recess, the foot-contacting surfaces of the sole body and reinforcing plate being shaped to suit the contours of a wearers foot. The sole body and reinforcing plate may be made from P.V.C. compounds details of which are given in the specification and the reinforcing plate may cover either substantially the whole of the upper surface of the sole body Fig. 10 (not shown) and may also be provided with a plurality of projections in its lower surface for location in corresponding recesses in the upper surface of the sole body. The reinforcing plate may be secured to the sole body by an adhesive and shoe or sandal uppers may be secured to the sole by conventional methods. The sole may be incorporated in a sandal as shown and a plurality of interconnected grooves (11a), Fig. 8 (not shown) which communicate with the recesses 2, may be formed in the upper surface of the sole body to produce a ventilating effect when the sandal is worn. Alternatively the sole may be incorporated in a shoe Fig. 10 (not shown) which is ventilated by means of grooves (21a, 21b) formed in the upper surface of the sole body and holes (23a) which are formed in the reinforcing plate. Medicaments, drying agents or deodorisers may be placed in the recesses 2.
Patent GB-1133474-A (GB)
Title: Composite artificial filaments and processes for their manufacture
Inventor: SISSONS CHRISTOPHER ROBERT
IPC: D01D5/32
Filed: 1965-08-06
Abstract: 1,133,474. Making conjugate artificial filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 5 Aug., 1966 [6 Aug., 1965], No. 33732/65. Heading B5B. [Also in Division D1] Composite filaments having a potential crimp comprise two or more individual preformed organic component filaments in adhering contact along their total length, at least one cornponent filament forming the composite filament differing in physical properties and/or in chemical composition from the other filament or filaments. The component filaments are either composed of one or more synthetic thermoplastic materials and are either fused together along their points of contact, or the composite filaments, whether thermoplastic or not, are held together by an adhesive. The individual component filaments may have been fully drawn before having been caused to adhere together and form the composite filament. The component filaments may have a non-circular cross-section. The component filaments may be polyamides and the adhesive may be Bostik 1765, 1777, or S18376. The composite filament may comprise two component filaments, one of which is polyhexamethylene adipamide and the other is either a 50/50 copolymer of polyhexamethylene adipamide and polyhexamethylene sebacamide, or an 80/20 copolymer of polyhexamethylene adipamide and polyepsilon caprolactam, the two component filaments being in either case held together by the Bostik adhesives specified above. The adhesive may be applied to at least one of the component filaments, e.g. as a dilute solution in a volatile solvent. The component filaments may consist of a thermoplastic polymeric material and may be rendered adhesive by heating them to a temperature at which they are plastic and adhesive. The heat may be applied to the filaments while they are held together by a seal or a false twist and the composite filaments formed may subsequently be drawn.
Patent GB-654175-A (GB)
Title: An improved optical illumination system
IPC: F21V5/00
Filed: 1947-12-20
Abstract: 654,175. Optical projection systems. GRETENER, E. Dec. 20, 1947, No. 33743. Convention date, April 5, 1946. [Class 97 (i)] An optical system for illuminating an object with a homogeneous distribution of light comprises a light source 11 with an oblong light emitting surface and a concave mirror 13 which directs the light on to a lenticular screen system consisting of lenticular screens 25, 26. These screens are arranged so that each lens of screen 25 forms an image of the source 11 at or near the corresponding lens of screen 26 and so that each lens of screen 26 forms an image of the corresponding lens of screen 25 at the object to be illuminated. In addition, the contours of the lenses of screen 25 are similar to the contours of the object and the contours of the lenses of screen 26 approximately coincide with the contours of the images of the source 11 formed by the lenses of screen 25. The lenses of the screens 25, 26 may be eccentric or prismatic. In a modification, the screen 26 is replaced by two lenticular screens ; in this case, the screen nearer the screen 25 is formed of positive lenses and the other screen is formed of negative lenses and is movable axially to vary the size of the illuminated area of the object.
Patent GB-860006-A (GB)
Title: Improvements in or relating to hydraulic motors
IPC: F15B9/10
Filed: 1957-10-30
Abstract: 860,006. Rotary motors. PRATT, E. E., POWELL, R. V., and SHAW, H. E. S. Oct. 30, 1958 [Oct. 30, 1957], No. 33914/57. Class 110 (2). An hydraulic motor of the oscillating vanetype adapted to actuate for example a ship's rudder is provided with vanes which cooperate with a pair of opposed abutments, the rotor and vanes being bored for the passage of fluid to and from the working chambers. The fluid is fed to the rotor spindle through a port 37 in the casing 10 and is exhausted therefrom through a port 38, a rotatable sleeve valve 43 being disposed between the casing and the rotor spindle. In a modification, Figs. 6, 7 and 8 (not shown), the sleeve valve is replaced by a ported disc valve disposed transverse to the longitudinal axis of the rotor or by a further modified valve construction for details of which Figs. 10 and 11 (not shown), should be referred to. The blades may be formed separately from the spindle and secured thereto by dowels (see Fig. 9, not shown).
Patent GB-605145-A (GB)
Title: Improved thermo-sensitive material
IPC: G01K5/66
Filed: 1945-12-15
Abstract: 605,145. Temperature-responsive actuating-elements. GENERAL MOTORS CORPORATION. Dec. 15, 1945, No. 34004. Convention date, Dec. 16, 1944. [Class 64(ii)] A temperature-responsive material comprises a metal backing member and a layer of thermosetting plastic dielectric material attached thereto by an intermediate layer of highly porous sintered non-compacted metal powder, metallurgically bonded to the backing member and interlocked with the dielectric material. In an example metal powders are sintered on to a steel backing member 22 by heating under non-oxidizing conditions till bonding takes place to form a layer 24 capable of being impregnated. Phenolformaldehyde resin powder is applied under heat and pressure to form a curved layer of resin 21, interlocked with the sintered metal. The metal strip may be curved while the dielectric layer is being applied, to compensate for contraction of the metal on cooling. Other metals or combinations of metals, and thermoplastic and other thermo-setting resins may be used as the dielectric layer.
Patent GB-1242867-A (GB)
Title: Improvements in and relating to the treatment of aromatic polyamide shaped articles
IPC: D06M11/09
Filed: 1968-07-17
Abstract: 1,242,867. Polyamide fibres and filaments. MONSANTO CO. 17 July, 1968 [17 July, 1967], No. 34020/68. Heading B5B. [Also in Divisions C1, C3 and D1-D2] Flexible aromatic polyamide shaped articles are rendered fireproof and dimensionally stable by reaction with halogen in an oxygen-free atmosphere at 250‹ to 500‹ C. but below the softening point of the polyamide. The article may be a film or fibre; the fibres may be formed by dry or by dry-jet-wet-spinning methods. The polyamides may be obtained by reacting an aromatic diacid halide with an aromatic diamine interfacially or in solution. The halogen may be chlorine or bromine and may be mixed with nitrogen. The lower melting polymers may be subjected to a programmed temperature treatment. In Examples I and III a tape of 2 denier poly - m - phenylenebis(m - benzamido)terephthalamide (PBT) is treated with Cl 2 /N 2  at 311‹ C. and with Br 2 /N 2  at 342‹ C. respectively; in Examples II and IV poly - m - phenyleneisophthalamide fibres and fabric are similarly treated. This product when treated as in Example I gives a brown paper which does not burn in a burner flame. Fibres treated according to the invention are stated to be useful precursors for carbon fibres.
Patent GB-521625-A (GB)
Title: Improvements relating to automatic boosting or regulating apparatus for alternating electric current circuits
IPC: G05F3/06
Filed: 1938-11-23
Abstract: 521,625. Automatic regulation. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., STEVENS, S. A., and WALKER, A. H. B. Nov. 23, 1938, No. 34094. [Class 38 (iv)] A boosting voltage, simulating a circuit having a negative internal characteristic, is inserted in an A.C. load circuit by a winding b in an unsaturated choking coil which is in series resonance with a condenser e in shunt with which is a saturated choking coil f. The internal resistance of rectifiers a may thereby be nullified. The voltage drop in supply leads to a load device, such as a point machine remote from a signal cabin, may also be compensated by an arrangement in which a secondary winding on the choke f is included with a secondary winding on the choke b in series with the load circuit supplied from the mains R. S.
Patent GB-902447-A (GB)
Title: Pipe connector
Inventor: HATHAWAY LAWRENCE
IPC: F16L37/14
Filed: 1958-10-27
Abstract: 902,447. Pipe connectors. HATHAWAY Ltd., L. Sept. 4, 1959 [Oet. 27, 1958], No. 34264/58. Class 99(1). A pipe connector includes a rigid sleeve 13 to engage over a pipe end 11, the sleeve being provided adjacent one end with coplanar, chordwise, through slots 15a, 15b to receive the limbs 16 of a substantially U-shaped resilient clip 17, the facing edges of which engage a peripheral groove 18 in the exterior of the pipe end 11. Arcuate recesses in the facing edges of the clip resiliently engage corresponding arcs at the bottom of the groove. A rubber 0-ring 20 seated in an annular channel 19 seals the pipe end 11 to the sleeve 13.