baber/WOPTO huggingface dataset:
Patent GB-1023660-A (GB)
Title: The metering of liquids
Inventor: JONES ERIC HARDING
IPC: G05D7/01
Filed: 1963-12-04
Abstract: 1,023,660. Delivering measured quantities of liquid. COTTON, SILK & MAN-MADE FIBRES RESEARCH ASSOCIATION. Feb. 9, 1965 [Dec. 4, 1963], No. 47860/63. Heading B8N. [Also in Division G1] An apparatus for delivering a liquid at a controlled rate comprising a reservoir 10 adapted to be filled with the liquid, means 14, 19 for decreasing the liquid holding capacity of the reservoir at a controlled rate, thereby to cause the liquid to overflow from the reservoir at a controlled rate, and means 12 for collecting the liquid which overflows. The means for decreasing the liquid holding capacity of the reservoir is in the form of a vessel 14 which normally floats on the surface of the liquid. In order to increase the weight of the vessel so as to displace the liquid over the edge of the reservoir into a trough 12, a chain 19 passing over sprockets 18, 19, is fed from a storage bin 20, into a compartment 23 within the vessel at a controlled rate; the sprocket 18 is rotated by a shaft 24 via a gear-box 25. The vessel is provided with rollers 15 which run on rails 16 supported by struts 17. In a modification, the storage bin is replaced by the compartment 23 of a similar apparatus so that when the vessel of one reservoir is completely lowered, the chain drive would be reversed to lower the vessel in the other reservoir. In a further modification, the vessel may be replaced by one or more weights which are adapted to be lowered directly into the reservoir at a controlled rate.
Patent GB-1269600-A (GB)
Title: Polymerization reactor
Inventor: NOVICHKOV ALEXANDR NIKOLAEVICH
IPC: C08F2/00
Filed: 1970-10-09
Abstract: 1,269,600. Mixing apparatus; polymerisation reactor with heat exchange system. LENINGRADSKY NAUCHNO-ISSLEDOVATELSKY I. KONSTRUKTORSKY INSTITUT KHIMICHESKOGO MASHINOSTROENIA. 9 Oct., 1970, No. 48106/70. Headings B1C and B1X. A polymerisation reactor has a housing 1 with a heat exchange jacket 2, inlet 3, outlet 4 and a stirrer comprising tubes 6 mounted on a pipe 6A coaxial with the hollow rotatable shaft 5 so that a heating or cooling medium can be passed through them, the tubes 6 being co-planar with the axis of rotation. As shown, the tubes 6 are at different distances from but parallel to the housing walls (see also Fig. 2, not shown) but they may be of zigzag conformation (see Figs. 3 and 4, not shown).
Patent GB-1363358-A (GB)
Title: Xerographic copying machine
IPC: G03G21/00
Filed: 1972-10-23
Abstract: 1363358 Electrostatic printing machines INTERNATIONAL BUSINESS MACHINES CORP 23 Oct 1972 [17 Dec 1971] 48656/72 Heading G2H In a xerographic machine for producing multiple copies per revolution and in which a latent image produced during the revolution is developed and transferred during the next revolution, the drum 11 has three photosensitive plates associated with three zones A, B, C, the zones being divided by sub-zones a, b, c, bearing machine readable indicia which determines the operation of the machine. The original to be copied is mounted in a horizontally reciprocable frame 55 and through mirrors and lens and a movable carriage system is transmitted line-by-line to the plates on the drum. During the return movement of the carriage (arrow 99) no image is transmitted. The charging device 21 comprises corona wires 47, 48, 49, switched on, and off, in sequence and the cleaning brush 19 is also automatically operated. During revolution 1 of the drum 11, 'A' is imaged and so is C but B is missed until the second revolution when both A and C are developed and transferred. 'B' is developed and transferred during the third revolution. Instead of 3 zones drum 11 may comprise 1, 2 or 4 or more zones.
Patent GB-1021089-A (GB)
Title: Door safety locks
IPC: E05B27/00
Filed: 1962-12-31
Abstract: 1,021,089. Latches. J. VOSS [trading as JOSEF VOSS KOMM.-GES.]. Dec. 31, 1962 [Jan. 8, 1962], No. 48993/62. Heading E2A. A door lock comprises a casing 1 adapted to be mounted in the door, a retainer-controlled latch bolt 4 projecting from the casing and being selectively operable by a lock cylinder 6 or 7 in two revolutions thereof or by a latch handle 15, the casing being formed with a bore 10 parallel with the cylinder and having a hub sleeve 11 for the hub 14 of the latch handle and a hub lever 32 pivoted in the casing and connecting the hub sleeve to the latch bolt to act directly on a tail piece 4<SP>11</SP> of the latch bolt corresponding in length to the width of the casing. In the arrangement shown, each lock barrel is operatively connected to the latch bolt through a retainer comprising a pin and rocker mechanism 25, 26, the arrangement being such that when the bolt is operated to the locked position by either lock, the handles are inoperative. In other arrangements Figs. 10 to 16 (not shown) the pin and rocker connection between the lock barrels and the latch bolt is replaced by a spring-loaded slidable plate adjacent the bolt and which is engageable by a lever arm on the barrels.
Patent GB-1004640-A (GB)
Title: Damped chassis
IPC: H05K7/04
Filed: 1962-12-31
Abstract: 1,004,640. Mounting electrical components. LORD MANUFACTURING CO. Dec. 31, 1962 [Feb. 12, 1962], No. 49017/62. Heading H1R. In a chassis, Fig. 1, for supporting electrical equipment, comprising cross channels 2 joined by longitudinal angles, a damped panel 9 is made of upper and lower metal sheets 10, 11, Fig. 4, bonded to an intermediate layer 12 of viscoelastic material. Plates 10, 11 have flanges 15, 16 which are disposed, one on either side of longitudinal angles 5 with a layer 13, 14 of viscoelastic material in between. The chassis is reinforced by angle members 21, 23 secured to lower sheet 11 and to a bottom cover 8 respectively, and bonded together with an intervening viscoelastic layer 25. Fig. 3 shows how cross channels 2 fit between upper and lower sheets 10, 11; also how a nut 18 for connecting equipment to upper sheet 10 is brazed thereto at flange 19 in register with a hole 20 in the panel 9. Larger openings 28 in the panel receive connectors 29, Fig. 6, having flanges 31 which are bolted to the panel, viscoelastic gaskets 32 being bonded to the underside of lower sheet 11 around the openings 28. For air cooling, channels 2 are provided with duct openings; and a control panel 33 may be riveted to ears 34 integral with longitudinal angles 5. Any damped multi-ply laminate, or a plate with a cellular centre section, can be used for panel 9.
Patent GB-1012519-A (GB)
Title: Field-effect transistors
IPC: H01L21/74
Filed: 1962-12-31
Abstract: 1,012,519. Semi-conductor devices. TEXAS INSTRUMENT Inc. Dec. 31, 1962 [Aug. 14, 1962], No. 49031/62. Heading H1K. A planar field effect transistor comprises a first region of one conductivity type on a second region of the opposite conductivity type on a body portion of said one type, both PN junctions extending to the major face and ohmic contact existing between the first region and. the body portion which provide gate electrodes. Figs. 1 and 2 show a field effect transistor consisting of an N-type silicon wafer 10 containing a P-type region 11 with ohmic source and drain electrodes 12, 13. A narrow N-type region 14 is diffused across P-region 11 to form the top gate and the ends of 14 extend beyond region 11 to make ohmic contact to N-type wafer 10 which forms the bottom gate which is bonded to conductive plate 15. The device is produced by oxide masking, selective .etching and photo resist technique in which boron is diffused into a phosphorus doped wafer and source and drain contacts 12 and 13 are produced by evaporating aluminium on to the boron diffused layer. Phosphorus is deposited and diffused to form the N- region 14. The surface of the device is protected by an oxide layer 20. Fig. 4 shows an alternative embodiment with circular source and drain electrodes 38 and 39 in ohmic contact with N-type region 31 in P-type wafer 30. The top gate is formed by an annular P portion 37 which contacts the P-type wafer 30 via a small projection 34 which, during manufacture, was masked so that this portion of wafer 30 remained P-type when N-region 31 was produced. The various regions may be produced by alloying processes instead of diffusion.
Patent GB-1201784-A (GB)
Title: A plug-in relay electronic trigger circuit unit
Inventor: SOMERSET CHRISTOPHER WALTER HE
IPC: H03K17/60
Filed: 1967-10-27
Abstract: 1,201,784. Circuit assemblies. PERIVALE CONTROLS CO. Ltd. 19 Dec., 1968 [27 Oct., 1967], No. 49059/67. Heading H1R. A circuit assembly comprises three separable units containing respectively a relay, an electronic trigger circuit and a socket, adapted for plug-in connection to one another in the above order with the socket being adapted for plugging the assembly into a larger unit. The bottom end of a transparent housing containing the relay is provided with first and second groups of twelve and two pins respectively which plug into corresponding sockets in the upper end of a second unit housing containing a Schmitt trigger circuit. The lower end of the trigger housing is provided with first and second groups of twelve and four pins respectively for engagement with the socket unit which latter plugs into a larger equipment unit by first and second groups of twelve and four pins respectively. The groups of four pins on the trigger unit and socket units enable the trigger circuit to be connected in circuit with the larger unit, two of the pins providing the supply and the other two being connected to one of the transistors of the trigger. The two pin groups of the relay unit is connected to the energizing coil of the relay. A current may be switched by the complete assembly of relay, trigger and socket in a variety of applications.
Patent GB-1382518-A (GB)
Title: Preparation of oxalic acid and oxalate salts
IPC: C25B3/29
Filed: 1972-10-25
Abstract: 1382518 Oxalic acid and oxalates TEXACO DEVELOPMENT CORP 25 Oct 1972 [28 Dec 1971] 49167/72 Heading C2C [Also in Division C7] Oxalate salts are prepared electrolytically by a method including passing carbon dioxide into a non-aqueous catholyte comprising a non- aqueous liquid solvent and a C 1 -C 5  alkyl quaternary ammonium salt soluble in the solvent. Acidification of the oxalate produces oxalic acid.
Patent GB-1175927-A (GB)
Title: Track Shoes for a Crawler Tractor
IPC: B62D55/28
Filed: 1968-10-17
Abstract: 1,175,927. Endless tracks. GENERAL MOTORS CORP. 17 Oct., 1968 [22 Nov., 1967], No. 49207/68. Heading B7H. A shoe 14 for attachment to the links 10 of an endless track comprises a rectangular base-plate 14 carrying a projecting grouser 28 having a central portion 30 which is adjacent one edge 24 of the plate and extends into lateral wings 32 the extremities of which are adjacent the opposite edge 26 of the plate, the inclination of one face 38 of the grouser in relation to the plate changing from substantially perpendicular at the central portion 30 to an obtuse angle at the extremities of the wings 32, and the inclination of the other face 36 changing from an obtuse angle at the central portion to substantially perpendicular at the extremities. As shown the grouser 28 is formed integrally with the plate 28 and has a sinuous generally V-shaped formation when viewed in plan. Bolts 16 connect each shoe to each pair of track links 10 so that the central portions 30 of the grousers are positioned at the leading edges of the shoes during forward travel.
Patent GB-1029458-A (GB)
Title: Improvements in piston type pressurised dispensing containers and pistons therefor
IPC: B65D83/16
Filed: 1964-12-03
Abstract: 1,029,458. Pistons. COLGATE-PALMOLIVE CO. Dec. 3, 1964 [Jan. 3, 1964], No. 48240/64. Heading F2T. [Also in Division F1] In a dispensing container of the type in which the product to be dispensed is separated from the propellant by a piston, the latter is sealed by a hydrogel formed on its upper surface. The piston may have a skirt depending into the propellant section in which case the hydrogel is present between the skirt and container wall or the piston may be of cellular material in which case the hydrogel seats the upper surface in contact with the product. The hydrogel is formed by the reaction of a salt (borax) contained in the product to be dispensed with an aqueous polyvinyl alcohol solution previously applied to the piston.
Patent GB-1123564-A (GB)
Title: Pattern recognition system
IPC: G06V10/88
Filed: 1965-11-19
Abstract: <PICT:1123564/C4-C5/1> <PICT:1123564/C4-C5/2> In a pattern recognition system (see Division G4), logic elements are used comprising sandwiches consisting of a mask BM, Figs. 13a, 13b, a first transparent conductor layer TC, a photo-conductor layer PC, an opaque layer OL, an electroluminescent layer EL, and a second transparent conductor layer TC.  In Fig. 13b, the last three layers do not occupy the full width of the sandwich.  Fig. 13a performs OR (or threshold) logic and Fig. 13b AND logic operations on areas of an optical image input to produce an optical output.  A data storage plate in the same system consists of a PC/EL sandwich divided into a large number of insulated cells by opaque partitions, Fig. 3 (not shown).
Patent GB-1236272-A (GB)
Title: Packaging insert for balance wheels for watches
IPC: B65D81/05
Filed: 1968-10-22
Abstract: 1,236,272. Packaging; boxes. EBAUCHES S.A. 22 Oct., 1968 [10 Nov., 1967], No. 49968/68. Headings B8C and B8P. A packaging insert for receiving a watch balance wheel with its mainspring comprises a receptacle-like insert body 5 and a cover 6 fixed on the rim of an opening of the insert body by snap closure, a space being defined between the insert and cover corresponding to the shape of the balance wheel with the hairspring, the body 5 having a shoulder 9 forming a rest for the rim of the balance wheel 16, a recess 8 for receiving an end of the balance wheel shaft 17 and an annular groove 7 adapted to receive with clearance a stud 18 fixed to the hairspring 20, thereby allowing displacement of the stud in a circumferential direction, the cover 6 having a salient portion 14 for receiving the other end of the balance wheel shaft. As shown, a cupped insert container 1 of moulded or pressed plastics material is provided with a shoulder 4, and cemented or welded to the flange 2 thereof, a cover 3. The rim of the insert has a shoulder 11 engaged by projections 12 on the cover 6 which is formed with an inclined lug 13 for opening the insert; the cover may, alternatively, be anchored to the outside of the insert. The covers 6 may be formed in a tape of plastics material or metal foil by cupping, each cover being assembled with a body 5 containing a balance wheel and the separate packaging inserts obtained by cutting out separate covers from the tape; a similar procedure may be used for packing the inserts in the containers 1, the covers 3 being separated when required.
Patent GB-1018541-A (GB)
Title: Nuclear reactor
IPC: G21C1/00
Filed: 1963-12-18
Abstract: 1,018,541. Reactors. ELECTRICITE DE FRANCE (SERVICE NATIONAL). Dec. 18, 1963 [Dec. 27, 1962; March 4, 1963; June 21, 1963; Sept. 20, 1963], No. 50021/63. Heading G6C. In a carbon dioxide gas-cooled reactor, the pressure vessel is of prestressed concrete and is steel lined. Both the reactor and a heatexchanger are mounted within the vessel, the former being situated above the latter upon a base which rests e.g. on rollers in a corbal (or rim) formed on the vessel internal wall. A biological shield, supported from the lower surface of the base, protects the heat-exchanger from the core radiations and is formed of steel or reinforced concrete. The shield supporting members permit relative displacement of the base and shield resulting from thermal expansion. The coolant ducting may be arranged so that the gas velocity along the length of each duct does not vary. In an alternative form, the base supporting reactor itself functions as a radiation shield and is formed of alternate layers of neutron-absorbing and moderator material. The coolant passages through the base and shielding are such as to provide reflection attenuation of the same order as the transmission attenuation through the shielding for the core nuclear radiation.
Patent GB-1046230-A (GB)
Title: Improvements relating to abrasives
IPC: C08L77/00
Filed: 1963-12-18
Abstract: A method of making an abrasive article comprises mixing at least one diamine having the formula H2N-R-NH2, where R1 is an aromatic, aliphatic, cycloaliphatic, combination of aromatic and aliphatic, heterocyclic or bridged organic radical where the bridge is oxygen, nitrogen, sulphur, silicon or phosphorus, or a substituted derivative thereof with at least one tetracarboxylic acid dianhydride of the formula <FORM:1046230/C4-C5/1> where R is a tetravalent radical having at least 2 carbon atoms, no more than 2 carbonyl groups of said dianhydride attached to any one carbon atom of said tetravalent radical, in a solvent for at least one of said reactants, the solvent being inert to the reactants under conditions to form a polyamide-acid having an inherent viscosity of at least 0.1, adding at any stage prior to shaping crystalline, abrasive particles of green rouge, silica, alumina, boron carbide, silicon carbide, steel or diamond to form a shapeable polymeric composition having said particles dispersed uniformly therein; shaping said composition into a shaped article and converting the polymer to polyimide.  Many conventional reactants and solvents are specified.  Examples are given, the exemplified articles being discs and films.ALSO:A method of making an abrasive article comprises mixing at least one diamine having the formula H2N-R1-NH2, where R1 is an aromatic, aliphatic, cycloaliphatic, combination of aromatic and aliphatic, heterocyclic or bridged organic radical where the bridge is oxygen, nitrogen, sulphur, silicon or phosphorus, or a substituted derivative thereof with at least one tetracarboxylic acid dianhydride of the formula <FORM:1046230/C3/1> where R is a tetravalent radical having at least 2 carbon atoms, no more than 2 carbonyl groups of said dianhydride attached to any one carbon atom of said tetravalent radical, in a solvent for at least one of said reactants, the solvent being inert to the reactants under conditions to form a polyamide-acid having an inherent viscosity of at least 0.1; adding at any stage prior to shaping crystalline, abrasive particles of green rouge, silica, alumina, boron carbide, silicon carbide, steel or diamond to form a shapeable polymeric composition having said particles dispersed uniformly therein; shaping said composition into a shaped article and converting the polymer to polyimide.  Many conventional reactants and solvents are specified.  Examples are given, the exemplified articles being discs and films.
Patent GB-1487254-A (GB)
Title: Amplifier arrangements with a plurality of negative feedback circuits
IPC: H03G5/04
Filed: 1974-11-20
Abstract: 1487254 Negative feedback amplifiers; transducer circuits SONY CORP 20 Nov 1974 [24 Nov 1973] 50299/74 Headings H3W and H4J An amplifier 2 may be selectively connected to a plurality of input sources, e.g. a record player and FM tuner and has a plurality of negative feedback circuits Z EQ , Z F  selectively connected in co-ordination therewith, and impedances such as R EQ , R F  are connected with said feedback circuits to prevent amplifier oscillation. Leakage from an open switch contact such as S 2b , represented by a notional resistor R r , may provide a positive feedback path to the amplifier input. Amplifier oscillation is prevented by resistors REQ, R F  connected between switch contacts S 2a , S 2b  respectively and earth.
Patent GB-1170519-A (GB)
Title: A Time Division Multiplexing Method of Telegraphic Transmission
IPC: H04L5/22
Filed: 1967-11-08
Abstract: 1,170,519. Telegraphy. C.I.T. -COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 8 Nov., 1967 [22 Nov., 1966], No. 50730/67. Heading H4P. In a time division multiplex telegraph system of the transparent type (i.e. which can handle input data having any speed up to a given maximum) having n input channels and a t.d.m. cycle time 0, each group of bits occupying a time # in each input channel is compressed to occupy a time less than #/n in the t.d.m. cycle. Guard bits are added preceding and following the first and last data bits of the group and have the same state as those data bits. The guard bits and data bits together fill one time slot, duration #/n. Because of the guard bits no bit in the time slot has less than a given duration whatever the relative time of occurrence of the bit transitions and the beginning and end of the time slot. . Fig. 2 illustrates two channels I, II of a 24 channel system having a cycle time 0 of 160 m.sec. Groups of bits are compressed in units 21, 22 to occupy about 5.3 m.sec. and two guard 1 1 bits, e.g. GE, Gs each about 0.6 m.sec. long are added. Units 21, 22 &c. are scanned sequentially by distributer 3, each unit 21, 22 &c. being sensed for 6.6 m.sec. The t.d.m. signals on the transmission channel 5 are thus as at Ia, IIa for channels I and II, the reverse process takes place at the receiver. The compressing units 21, 22 &c. each consist of an endless magnetic tape driven continuously at a speed V past a recording head fed by the input data on the associated channel, and driven intermittently at a speed greater than nV past a reading head when the distributer is ready to receive data from it. The reading head can read out the tape when it is stationary so a guard bit of the appropriate state is produced by not starting the tape movement until after the distributer connects to the unit and by stopping the movement before the distributer disconnects. At the receiver similar units 81, 82 have the reverse effect.
Patent GB-1171905-A (GB)
Title: Device for Use in Fixing Sheet Material.
Inventor: COOKSON WILLIAM
IPC: F16B37/04
Filed: 1965-11-30
Abstract: 1,171,905. Clamp fastenings; sheet walling and roofing. COOKSON SHEET METAL DEVELOPMENTS Ltd. 21 Nov., 1966 [30 Nov., 1965], No. 50833/65. Headings E1W and E2B. A device for use in fixing sheet material 6, e.g. siding and roofing sheets the sheet material having a rib 8 of which each flank 12 has an internal ledge 18, 20 to provide engagement means for the fixing device, consists of a clamping member 28 having first and second co-operating parts 38, 46 resiliently joined so as to be capable of being moved towards each other in a clamping action, the first part being provided at opposite sides with engagement means to engage the ledges in the flanks of the rib, the second part having means for engaging elsewhere against the sheet material, the two parts when urged towards one another and held in a clamping position serving to secure the fixing device to the rib. As shown the first part has a curved wall with sides (not shown) which are turned towards the second part and which form the engagement means, the curved wall straightening as the two parts of the clamping member are urged together to secure the fixing device to the rib. The second part of the clamping means comprises a wall having joggled sides 52, 54 engageable with the sheet material in the region of the flanks of. the rib, the wall entering a certain distance into the space defined by the rib. The two parts 38, 46 are urged together by a bolt 30 and nut 32 and the sheet material is held to a rail 26 by a clip 36 and nut 34.