baber/WOPTO huggingface dataset:
Patent GB-377878-A (GB)
Title: Improvements in and relating to coin-freed mechanism
IPC: G07F17/16
Filed: 1931-12-07
Abstract: 377,878. Coin - freed gramophones. AHRENS, C., 359, City Road, London. Dec. 7, 1931, No. 33889. [Class 27.] Coin action, weight.-Mechanism is rotated by the turntable 7 of a gramophone to reopen, after two or more revolutions of the turntable, the motor circuit which is closed by the insertion of a coin, and to lock the turntable. The turntable carries a record with a concentric groove in which the needle of a pick-up 10 travels continuously and the vocal sounds or announcement is reproduced more than once for each coin insertion. A coin passing down a shoot 1 tilts a counterbalanced lever 2 and moves a nose 2c thereon out of engagement with a pin 3b on the back of a toothed wheel 3. The end of a blade 4 pivoted at 4a to the nose 2c is also disengaged from the pin 3b so that a spring 5 moves the blade to close a switch 6. The turntable now rotates and a pin 7a thereon drives the wheel 3. After two revolutions of the turntable, a second pin 3a on the wheel 3 engages the nose 2c on the lever 2, which has returned to its initial position, and also the end of the arm 4 thereby breaking the circuit and stopping the turntable which is locked by the pin 7a engaging the wheel 3. By varying the size and number of teeth and the number of pins on the wheel 3, the number of revolutions of the turntable for one coin insertion can be varied. The pick-up 10 is held against the record by a spring 12. It is lifted by a lateral cam 7b on the turntable engaging once in each revolution with an arm 8 fixed in a bracket 9 which is rockably mounted in the machine frame and carries an arm 9a on which the pickup rests. The cam 7b is disposed opposite a plain portion of the record.
Patent GB-1068964-A (GB)
Title: Improvements in and relating to heat transfer tubes
IPC: F28F1/16
Filed: 1964-08-19
Abstract: 1,068,964. Nuclear fuel elements. SULZER BROS. Ltd. Aug. 19, 1964 [Sept. 6, 1963], No. 33895/64. Heading G6C. [Also in Division F4] A can for a nuclear fuel element comprises a tube 1 having longitudinal fins 4, 5 interrupted by at least one generally spiral channel 6 which serves to split up the flow of a heat exchange medium flowing longitudinally between the fins. The tube may be made of magnesium or aluminium and may be of hexagonal or quadrilateral cross - section. The spiral channels are at an angle of 5 to 20 degrees from the axis of the tube. The fins may be inside the tube.
Patent GB-1063104-A (GB)
Title: Polurethane filaments and fibres
Inventor: BRITAIN J W
IPC: C08G18/42
Filed: 1963-08-28
Abstract: Polyurethane filaments and fibres having an -NCO content of from 0.08-2.29% are produced by reacting (i) an hydroxyl polyester of M.W. at least 600 and prepared by reacting a mixture of at least two saturated aliphatic glycols having primary hydroxyl groups and from 2-6 C between the hydroxyl groups and an aliphatic dicarboxylic acid having 4-10 C with (ii) an aromatic diisocyanate and (iii) a saturated straight chain aliphatic primary diol having from 2-10 C, the ratio of molecules of aliphatic primary diol (iii) to polyester (i) being at least 2 and the total ratio of -NCO to -OH groups being 1.02 to 1.08, casting the reaction mixture into a mould and allowing to solidify and subsequently extruding the cast material to form filaments of fibres.  Ferric acetyl acetonate may be present in the reaction mixture.
Patent GB-1312643-A (GB)
Title: High voltage electric circuit breakers
IPC: H01H9/56
Filed: 1970-07-14
Abstract: 1312643 Electric switches GENERAL ELECTRIC CO 14 July 1970 [23 July 1969] 34090/70 Heading H1N [Also in Division H3] In order to avoid undesirable voltage surges when connecting a supply line 121, Fig. 1, to a load line, when the latter may have retained an appreciable charge, connection is made at a voltage peak of polarity similar to that of the charge. Voltage dropping capacitors 70, 72, connected across the supply line of one phase and earth, supply an input to a zero crossing detector 75 which produces a pulse 76 each time the voltage passes through zero, so providing a datum for timing. A closing logic circuit 78 receives these pulses and also the output from a trapped charge detector 83, which gives an output indicative of the polarity of the charge provided it is above a predetermined minimum magnitude. When a zero pulse of the same polarity as the charge is received, the circuit 78, through a circuit 100, giving an appropriate time delay, releases latch 43 to close sequential switches 28, 32, 22. The trapped charge indicator, Fig. 3, receives an input from the line 12 through voltage divider 80, 82, this input corresponding in polarity with the charge on the line. This is passed through amplifiers 156, 157, connected to give positive feedback through resistor 159 and consequently continuing to give an output on lead 85 of appropriate polarity once an input signal has been received. The closing logic circuit 78, Fig. 4, comprises two flip-flops 180, 181 such that when the polarities of their terminals A, B are as shown, neither can be turned on by a positive input on line 84, the reverse set of conditions also being true. The polarity of these terminals A, B is determined by the polarity on the line 85, i.e. the output of the charge detector, and thus only when the pulse received on line 84, from the zero crossing detector, is of the same polarity as that on line 85 is an output passed through line 88 to trip the closing latch.
Patent GB-738254-A (GB)
Title: Improvements in and relating to ball joints
IPC: F16C11/08
Filed: 1953-12-08
Abstract: 738,254. Ball and socket joints. THOMPSON PRODUCTS, Inc. Dec. 8, 1953 [June 25, 1953 No. 34143/53. Class 65(2). [Also in Group XXII] A ball-joint sub-assembly, i.e. a unit which, when secured in an outer housing forms a completed ball joint, comprises a cup-shaped housing 15 having a constricted opening, and a ball stud 16 permanently retained within the housing, the ball stud being provided with or carrying a bearing surface which cooperates with a corresponding bearing surface formed on the inner face of the housing, the part of the housing adjacent the stud having a shape which follows the shape of the bearing surface provided on or carried by the stud. As shown, a bearing ring 18 is interposed between the head of the stud and the housing. The latter is originally cylindrical and is spun over the bearing ring to form a bearing surface in contact with the latter. In a modification the bearing ring is omitted and the housing is spun directly on to the stud head. The housing 15 is secured within an outer housing 10, the upper end of the former being spun over a ridged opening 14 in the latter for this purpose. The stud head also seats on a plate 19 biased by a compression spring 20. Alternatively, the stud head may seat on a capsule filled with a silicone polymer fluid. In a further modification the outer housing is constructed completely of sheet metal.
Patent GB-902664-A (GB)
Title: Laminated sheet materials
IPC: C08J7/056
Filed: 1958-10-24
Abstract: 902,664. Coated films. LOWE PAPER CO. Oct. 24, 1958 [Oct. 25, 1957], No. 34163/58. Addition to 868,924. Class 140. Sheet material comprising coated polyolefinic material is prepared by extruding homopolymers of aliphatic monoethylenic unsaturated hydrocarbons or copolymers of two or more such unsaturated hydrocarbons, other than polyethylene, to form a film, and applying a hydrophilic coating to a surface of the hot film immediately on its emergence from the extrusion orifice. The film former may be formed by polymerization of one or more lower alkene monomers, either straight or branched chain, such as polypropylene, polyalphabutylene, polyisopropyl propylene or polyisopropyl butene. The hydrophilic substance may be starch, " Methocel," (Registered Trade Mark), carboxymethyl cellulose, polyvinyl alcohol or acetate, or a protein, e.g. gelatin or casein, which may be mixed with other substances, e.g. pigments. The film may be united with a backing, e.g. paper, boxboard, kraft paper, cloth, foil or " Cellophane " (Registered Trade Mark), at the side remote from the hydrophilic coating. The backing may be continuously extrusion coated with the polyolefinic material and the hydrophilic coating continuously applied to the hydrophilic coating as this is applied to the backing. The hydrophilic substance may be filmed on to a drum and the polyolefinic material extruded into the nip formed between this drum and a roller so that the hydrophilic substance is transferred in the nip from the drum to the hot extruded polyolefinic film. The hydrophilic substance may be applied to the drum as an aqueous solution, the water being evaporated therefrom as it travels on the drum towards said nip. The hydrophilic coating may be subjected to a brushing or buffing operation.
Patent GB-978185-A (GB)
Title: Refractory practices
IPC: C04B35/03
Filed: 1963-08-29
Abstract: A batch for making refractories comprises a refractory material 50 to 70% of which is +65 Tyler and 50 to 30% is - 65 Tyler mesh, liquid bonding pitch and powdered pitch, 50% of the latter being co-ball milled with a major proportion of the fine fraction of the refractory before mixing with the other ingredients. Specified refractories singly or in admixtures are dolimite, magnesia and lime, all preferably dead burned.
Patent GB-1434102-A (GB)
Title: Electrophotographic copying machine
IPC: G03G15/28
Filed: 1973-07-18
Abstract: 1434102 Feeding webs MITA INDUSTRIAL CO Ltd 18 July 1973 [20 July 1972 21 Oct 1972] 34261/73 Heading B8R [Also in Division G2] A device for removing curl from a web comprises two segmented rollers 15 and 15<SP>1</SP> forming nips n 1  and n 2  with a small diameter roller 16. The web passes through nip n 1  and is deflected by guide fingers 18 (arranged between the segments of both rollers 15 and 15<SP>1</SP>) into the nip n 2 . Either or both of rollers 15 and 15<SP>1</SP> and the roller 16 are positively driven.
Patent GB-1510166-A (GB)
Title: Board game
IPC: G09B19/18
Filed: 1975-08-19
Abstract: 1510166 Board game DAJ BARNETT 19 Aug 1976 [19 Aug 1975] 34458/75 Heading A6H Game apparatus comprises money tokens mascots, a dice, a set of cards bearing instructions concerning market transactions and a set bearing instructions regarding courses of action and a game board having a track marked with spaces some of which bear instructions to silent a market transaction card, a number of zones bearing indicia representing enterprises and including areas containing tabulated indicia including a column containing indicia corresponding to those on the dice and an information zone setting out instructions relating the action cards to the indicia on the dice. There are at least 6 sets each of 57 cards in one of three games described.  Dice may be located in recesses in the board (shown as shaded) to indicate variables. The dice bear numbers 0 to 5 and 3 to 9 omitting 6. Coloured pegs in holes may denote orders purchased.
Patent GB-1274031-A (GB)
Title: Novel 1-oxa-a-nor-estra-3,9-dienes, process for their preparation, and compositions incorporating them
IPC: C07D303/32
Filed: 1969-07-09
Abstract: 1,274,031. 1-Oxa-A-norsteroids. ROUSSELUCLAF. 9 July, 1969 [9 July, 1968], No. 34477/69. Heading C2C. The invention comprises compounds of formula (wherein R is H, C 1-18  carboxylic acyl or an optionally substituted C 1-5  alkyl or C 3-5  cycloalkyl group) and their preparation from 1-oxa- 5#-(mesyloxy or tosyloxy)-9α-(chloro or bromo)- 17#-acyloxy-A-norestran-2-one (see Specification 1,274,034) by reaction with a tertiary organic base, followed when required by hydrolysis of the 17-acyloxy group in the product and reesterification or etherification. Alternatively I (R=acetyl) is prepared from 1-oxa-5#- hydroxy - 9α - chloro - 17# - acetoxy - A - nor- 10α-estran-2-one (see Specification 1,274,034) by reaction with mesyl chloride and pyridine. The inventive compounds are said to possess antiandrogenic activity and may be made up with carriers into pharmaceutical compositions for oral, parenteral, rectal and topical administration.
Patent GB-869963-A (GB)
Title: Improvements in or relating to containers for the bulk handling of powdered or granular materials
Inventor: GLENDINNING STANLEY ARCHIBALD
IPC: B65D88/72
Filed: 1958-10-28
Abstract: 869,963. Pneumatic conveyers. AMALGAMATED LIMESTONE CORPORATION Ltd. Oct. 9, 1959 [Oct. 28, 1958], No. 34481/58. Class 78 (1). In means for pneumatically discharging powdered or granular material at superatmospheric pressure from hermetically sealed containers an air pipe 15 having an unobstructed cross-section is mounted in the container with its inlet end at, or near, the top of the container and its discharge end adjacent to the outlet 12, the arrangement being such that pressure air passing from the plenum chambers 13 through the porous members 11 rises through the powdered material to the top of the container and then flows down the pipe 15 to discharge into the material between the end of the pipe and the outlet 12. The pipe is mounted slidably in guides 16, 161 and its position is adjusted by turning the nut 22 on the threaded extension 20. The discharge of powder is stopped by lowering the shaped end 24 of the pipe into contact with a seating 25 surrounding the outlet.
Patent GB-511252-A (GB)
Title: Improved means for obtaining the cooling air supply for motors of road vehicles
IPC: B60K11/08
Filed: 1938-11-28
Abstract: 511,252. Cooling motor-vehicle engines ZAVODY RINGHOFFER-TATRA AKCIOVA SPOLECNOST. Nov. 28, 1938, No. 34548. Convention date, Dec. 1, 1937. [Class 79 iii)] Pivoted roof flaps 3 for admitting cooling air to rear engines in streamlined motor vehicles are mechanically connected to the change speed gear and engine controls so that the degree of opening thereof is automatically regulated according to requirements. Thermostatic regulation of the air supply may be superposed. The flaps, which are of inverted channel form, are connected-by a cord 7 passing over rollers 8, 9, to the accelerator pedal 10, the roller 9 being on a pivoted arm 11 connected by a rod 12 to the gear change lever 13. A thermostatically controlled valve 15 may be mounted in the air conduit 5 or the length of the cord 7 or of the connecting rod 12 may be adjusted thermostatically or for summer and winter temperatures.
Patent GB-756832-A (GB)
Title: Improvements relating to high voltage electric supply circuits
IPC: G05F1/52
Filed: 1954-12-02
Abstract: 756,832. Automatic voltage control systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 2, 1954 [Dec. 8, 1953], No. 34971/54. Class 38 (4). [Also in Group XL (c)] The D.C. voltage of an R.F., E.H.T. supply, is stabilized by including a voltage variable capacitor (barium titanate dielectric) in the tank circuit of the oscillator and biasing it from the D.C. output so that the variations in oscillator tuning correct the deviations in output voltage. The oscillator valve 0 has a step-up transformer as tank circuit, the primary L1 being tuned by condensers C, C, one at least of which is voltage variable, the secondary L3 being tuned by selfcapacity. The output of the secondary L3 is rectified at R to provide the E.H.T. supply, a portion of which is tapped off resistors R1, R2 and applied via R.F. choke La to the con densers C, C.
Patent GB-1382138-A (GB)
Title: Pneumatic tube systems
IPC: B65G53/56
Filed: 1972-07-26
Abstract: 1382138 Selective connecting devices LAMSON ENG CO Ltd 27 June 1973 [26 July 1972] 35010/72 Heading F2G [Also in Division B8] In a Y-junction for a pneumatic tube system, with a pivotable deflector flap 8, two passageways (connected respectively to tubes 5 and 7) are curved longitudinally and the cross-sectional form of the passageways varies continuously from circular at 2, 4 and 6 to square at 13. A carrier may be sucked into tube 3, of the main line 3, 5, from the tube 7, with the flap 8 in the full-line position and then, after altering the position of the flap 8, blown into the tube 5. In a modification, a lever (20, Fig. 5, not shown) drops under gravity to move a flap (8<SP>1</SP>) into the raised position. An electric motor (22) is operated in response to signals of a control circuit to raise the arm.
Patent GB-890224-A (GB)
Title: Improvements relating to the preparation of polymers of alpha-olefins and other vinyl hydrocarbons
IPC: C08F10/00
Filed: 1958-11-03
Abstract: Vinyl hydrocarbons of formula CH2=CHR, wherein R is alkyl, aryl, arylalkyl or halogen substituted aryl, are polymerized with a catalyst formed by contacting a transition metal compound of Group IVa, Va or VIa metal in a valency state lower than its maximum, with an organo-metallic compound of a Group I, II or III metal and a further, different compound of a Group IIb metal.  Specified catalyst components include alkyls and/or halides of Al, Be, Zn, Cd and Hg and TiCl3 and VCl3.  In examples the polymerization is in benzene or heptane, purification is with HCl/MeOH and MeOH, and the products are fractionated with ether and heptane.  The catalysts used effect control over the molecular weight of the products.
Patent GB-946910-A (GB)
Title: Method of and tool for use in unsoldering printed circuit board connections
IPC: H05K13/04
Filed: 1962-09-14
Abstract: 946,910. Soldering. STANDARD TELEPHONES & CABLES Ltd. Sept. 14, 1962 [Sept. 19, 1961], No. 35184/62. Heading B3R. In unsoldering a wire soldered to a printed circuit board the solder is melted, a sleeve of non-soldering material is placed over the end of the wire so that the wire is isolated from the wiring on the board, the solder is allowed to solidify and the sleeve is removed from the wire. A board 1 on one side of which circuits and eyelets 3 are printed has components 6 on the other side with ends 5, 5<SP>1</SP> inserted through holes 4 in the board and soldered in the eyelets 3. To unsolder each connection a tool 8 having a steel cone-shaped end 9 with a blind hole 10 therein carried on a heat resistant handle 11 is placed on the wire end and a soldering iron 12 is applied to melt the solder 7. The tool is then slid upwards on the wire into the hole 4. The solder is allowed to solidify and the tool removed. For unsoldering multiple wire components a member with several tools 8 may be used.
Patent GB-1106259-A (GB)
Title: Improvements in or relating to television receivers
Inventor: BERZINS GUNARS
IPC: H04N5/46
Filed: 1965-08-18
Abstract: 1,106,259. Television standard converters. COMMUNICATIONS PATENTS Ltd. 17 Aug., 1966 [18 Aug., 1965], No. 35429/65. Heading H4F. The invention relates to a dual standard television receiver wherein the frequency of the line time-base is caused to change automatically so as to remain in synchronism when the line frequency (standard) of the received programme is changed. The receiver is designed to operate with 405 lines using positive modulation, or with 625 lines using negative modulation. Thus with the receiver conditioned to receive the 405 line standard, the peak whites of a received 625 line signal will cause false " sync" pulses to appear at the anode of the sync separator which will be out of synchronism with the 405 line time base. The false " sync " pulses are applied via input A to the control grid of valve V1. The line time base pulses are applied to the suppressor grid of the valve. Thus the counteracting pulses on the control and suppressor grids do not coincide, and current pulses pass through relay RY, which is thereby actuated. This actuates contact RY1 which alters the line time base and the sense of the sync pulse separation, and contact RY2 which, in the case of a fly-wheel line time base widens the pull-in range.
Patent GB-1037745-A (GB)
Title: Improvements in or relating to grain driers
IPC: F26B17/12
Filed: 1963-09-09
Abstract: 1,037,745. Drying granular material. P. H. COLLIER. Sept. 1, 1964 [Sept. 9, 1963], No. 35433/63. Heading F4G. [Also in Division A2] Apparatus for drying granular material, e.g. grain, comprises a bin 1 having louvres 3 in the lower portion forming an inverted cone, the apex of which leads to the lower end of an auger 5 for elevating the material to a spreader 26 which distributes it on the surface of the material. A plenum chamber 18 is formed beneath the louvres, which are inwardly and downwardly inclined, to allow passage of hot air from the plenum through the material passing over the inclined louvres. The air passes from the louvres not only upwardly through the material in the bin, but also into a space 25 beneath a perforated conical member 13 which terminates a duct 12 surrounding the auger, through the conical member 13, and also into a perforated tube 16 about the lower part of the auger. The latter three air flows combine to pass upwardly through the duct 12 for exit through an aperture 22 of the bin and the dried material is removed at will from the upper end of the auger through a valved duct 9.
Patent GB-756074-A (GB)
Title: Improvements relating to high-voltage electric circuit-breakers
Inventor: CHRISTIE JOHN
IPC: H01H33/02
Filed: 1953-12-21
Abstract: 756,074. Transformers. REYROLLE & CO., Ltd., A. Dec. 9, 1954 [Dec. 21, 1953], No. 35550/53. Class 38 (2). [Also in Groups XXXVI and XXXVII] In high voltage electric switchgear (see Group XXXVII), a current transformer unit may comprise a moulded block of solid insulating synthetic resin in which is embedded at least the high voltage winding of a current transformer. In Fig. 1, the block 37 is formed with a recess 38 housing terminals 39 which co-operate with circuit-breaker terminals 36 on a protruding terminal bushing 35 to which the block 37 is secured by a semi-permanent joint. In Fig. 2 (not shown), the block is sealed into the wall of a cable chamber below the circuit-breaker. The resin is of the lowmoulding pressure type which solidifies by a polymerization process without evolving volatile constituents, e.g. the material known by the Registered Trade Mark " Araldite."
Patent GB-816079-A (GB)
Title: Improvements in or relating to electro-magnetic circuit arrangements
IPC: H01F38/10
Filed: 1956-11-21
Abstract: 816,079. Supply systems for space discharge lamps; transformers and inductors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 21, 1956 [Nov. 24, 1955], No. 35610/56. Classes 38 (2) and 38 (4). In a circuit arrangement wherein two chokes are in parallel branches of an electric circuit (as shown, each in series with a gas discharge tube) the chokes have a common magnetic core which has four parallel legs, the inner two legs 1, 2 having air gaps 11, 21, and carrying windings 3, 6. The windings are wound similarly on the two legs, so that with the connections as in Fig. 2 the flux in either of the two legs is increased by the additional flux derived from the winding on the other leg. This increased flux results in a reduction in the voltage across each of the tubes. To counteract this effect an additional winding 4-41 (Fig. 4) is connected to winding 3 on leg 1. The windings 3 and 3 plus 4-41 act as primary and secondary windings of an autotransformer, thereby providing an increased voltage between points 32 and 41 which is distributed across winding 6 and tube 33, thereby restoring the voltage across this tube. Also the voltage across tube 30 is increased since the winding 4-41 acts as a primary winding of an autotransformer of which winding 41-5 is the secondary winding. In a modification (Fig. 5, not shown), an auxiliary winding is connected to each of the windings 3, 6. Fig. 6 shows an arrangement where the connection of winding 6 is reversed (i.e. end 7 connected to terminal 31) and a capacitor 9 included in series with tube 30. With this connection when tube 33 operates alone the voltage induced in the winding 3 tends to increase the voltage across the tube 30. If, however, the tube 30 operates alone the voltage induced in winding 6 is reversed in phase by the capacitor 9 and the voltage across the tube 33 is reduced. This reduction is obviated by the arrangement of Fig. 8 whereby winding 6 is tapped at 72, the windings 7-72 and 6 acting as an autotransformer and increasing the voltage across the tube 33. In other arrangements the winding 3 is tapped and both windings 3 and 6 are tapped.