baber/WOPTO huggingface dataset:
Patent GB-1164992-A (GB)
Title: Method of Indicating Faults in Web Material.
Inventor: HERBERT ALAN GEORGE
IPC: G01N27/84
Filed: 1965-09-09
Abstract: 1,164,992. Indicating faults in web material. ROBINSON WAXED PAPER CO. Ltd. 8 Dec., 1966 [9 Sept., 1965], No. 38610/65. Heading B8R. [Also in Division G1] A method of indicating faults in web material comprises marking the surface of the running web in the vicinity of each observed fault with a magnetizable ink, and magnetizing each mark so produced to provide a signal capable of automatic detection. The mark may be applied as a stripe with a spray, and may be magnetized during application or later. During subsequent processing of the web, such as slitting, the mark is sensed to stop or slow down the web feed.
Patent GB-1432186-A (GB)
Title: Magnetic recording and/or reproducing apparatus
IPC: G11B5/48
Filed: 1973-08-16
Abstract: 1432186 Magnetic disc recorder SONY CORP 16 Aug 1973 [17 Aug 1972] 38734/73 Heading G5R In a magnetic disc record/playback arrangement in which is pliable disc record 1 is driven by motor M and is scanned by a head assembly mounted in a gap 4 in back plate 3, the assembly includes a head 5 mounted in a slot 63 formed in a slider plate 6 which on its surface directed towards the record is formed with a air groove 62 between the main plane portion of the surface incorporating the air gap of the head and an inclined portion 61. Air entrained between the rotating record and the inclined portion 61 escapes via the groove 62 allowing the record to move over the plane portion in contact therewith.
Patent GB-966024-A (GB)
Title: Improvements relating to apparatus for generating alternating current
Inventor: FAULKES KENNETH MILFORD
IPC: H02P9/34
Filed: 1960-11-11
Abstract: 966, 024. Automatic voltage control. ENGLISH ELECTRIC CO. Ltd. Nov. 8, 1961 [Nov. 11, 1960], No. 38754/60. Heading G3R. [Also in Division H2] An alternator comprises a rotating exciting winding energized by direct current from a controlled rectifier fed from the rotor of an A.C. exciter, the rectifier and two rotor windings being mounted on a common shaft, an inductive coupling being provided between stator and rotor for transfer of control signals to the rectifier. Preferably, the alternator exciting winding 10b is energized by D.C. from a bridge circuit comprising a pair of silicon rectifiers 12a and a pair of silicon controlled rectifiers 12b, the bridge being supplied by an A.C. exciter 13 having a fixed field winding 13b fed with D.C. An auxiliary alternator 15 having a permanent magnet rotor 15a generates a sine wave in phase with that induced in winding 13a. The auxiliary sine wave is squared at 22 before being fed to a variable delay unit 21 which may be a magnetic amplifier. The alternator output voltage is compared at 19 with a reference voltage 20, the error voltage being used to control the delay imposed at 21 on the leading edge of each half-cycle of the square wave from 22. Unit 23 generates a pulse at this time which is fed via a pair of inductively coupled annular windings 17, 16 to the control electrodes of the rectifiers 12b on the rotor. The conduction angle of rectifiers 12b is thus controlled to compensate for the change in output voltage. Modifications. The direct current in winding 13b may also be controlled in dependence on the load. Stator winding 13b may alternatively be replaced by a permanent magnet. A polyphase A.C. exciter 13 may be used. The auxiliary alternator 15 may be replaced by a stator winding inductively coupled to winding 13a.
Patent GB-364820-A (GB)
Title: Improvements in or relating to heat radiants for use in grilling and/or toasting and like purposes
IPC: A47J37/06
Filed: 1930-12-23
Abstract: 364,820. Radiants for stoves. GAS LIGHT & COKE CO., CLARK, J. G., ANDREW, L. W., and MASTERMAN, C. A., 84, Horseferry Road, London. Dec. 23, 1930, No. 38761. [Class 126.] A radiant, particularly for grilling stoves, is formed of two or more superimposed perforated and corrugated sheets 1, 2 of metal or refractory material, rigidly connected together. The corrugations of one sheet are preferably at right-angles to those of the other, as shown. In the form illustrated, the upper sheet is of L-form, having a depending flange 4 which serves to position the two sheets relatively to one another. The metal sheets may be spotwelded together. The jets of the burner 7 are arranged to deliver into the. channels formed between the plates or, as shown, into the troughs beneath the bottom plate.
Patent GB-979396-A (GB)
Title: Improvements in or relating to air cushion borne vehicles
Inventor: WILLIAMS GEOFFREY HUGH
IPC: B60V1/00
Filed: 1962-10-15
Abstract: 979,396. Air cushion vehicles. VICKERSARMSTRONGS (ENGINEERS) Ltd. Oct. 7, 1963 [Oct. 15, 1962], No. 38984/62. Heading B7K. An air cushion vehicle has a skirt depending from the underside of the vehicle, a part of the skirt being formed of flexible sheet material which has a fold or folds extending substantially horizontally and arranged such that when the lower edge of the skirt part is deflected up and down the fold or folds close and open. A convoluted skirt 3 is attached to the vehicle 1 along each lower side and tied to the underside at 7A by a flat sheet 7 and ties 9 of lengths that ensure that the skirt extends downwardly and inwardly from its attachment point. Flexible rods within the folds provide attachments for the ties and inter-connected and overlapping shoe members 5 are secured to the lower edge of the skirt, whereby they may ride freely over obstacles as shown in Fig. 3. A skirt having two folds only is described and for use over land shoe members are arranged to slide over sheet material laid on the ground. Shoes of various constructions are described and in a still further embodiment the ties 9 are replaced by a lazy-tong linkage connecting the fold ridges. The ends of the cushion area may be closed by a member as shown in Fig. 5 comprising stepped sections 15 of foam rubber connected by stiffeners 16, which may be inflatable, located by ties 18. Specification 979,397 is referred to.
Patent GB-1076686-A (GB)
Title: Improvements in or relating to data transmission systems
Inventor: PIERRET JEAN-NARC
IPC: H04L27/06
Filed: 1965-09-15
Abstract: 1,076,686. Automatic frequency control. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 15, 1965 [Oct. 16, 1964], No. 39299/65. Heading H3A. A receiver for a data transmission system of the type in which data is transmitted by modulation of a carrier signal, and the received signal is demodulated by injecting the carrier signal at the correct phase includes a phase-correcting circuit for adjusting the carrier phase to compensate for the non - linear phase/frequency characteristic of the transmission channel. During intervals between data transmissions a test signal comprising a fundamental frequency f and its kth harmonic, e.g. 3rd harmonic 3f, is modulated on to the carrier. A filter 5 extracts the carrier signal, which is fed to a phase shifter 7 and then injected into the demodulator DEM. The demodulated output is fed to filters 1, 2 which separate the components at frequency f and 3f. These two components are then modulated together in modulator 1 to produce a signal at frequency 2f, which is fed to a frequency divider ¢. The output from the divider at frequency f is mixed with the signal at frequency f from filter 1 to produce a D.C. signal proportional to sin ## where ## is the phase distortion of the originally transmitted carrier due to the non-linear characteristic of the transmission channel. This signal is applied to a threshold circuit Th. The phase correcting circuit 7 is fed with a control signal Sy which allows correction only during the time the test signals are being transmitted. Whenever the phase error is greater than #/8 the AND gate in unit 7 is preconditioned by Sy and Th to allow clock pulses from GP to step on a counter C, which sequentially inserts delays of #/8, #/4, 3#/8, #/2, 5#/8, 3#/4, 7#/8, into the injected carrier signal on line 8. When the shift is sufficient to reduce the error signal tobelow #/8, the output from Th is insufficient to condition the AND gate and stepping of the counter is stopped. In a modification, Fig. 2 (not shown), correction signals proportional to sin## and cos## are produced.
Patent GB-1411638-A (GB)
Title: Method and mechanism for controlling forces on a strand as it solidifies
IPC: B22D11/128
Filed: 1972-08-23
Abstract: 1411638 Roller conveyers USS ENGS & CONSULTANTS Inc 23 Aug 1972 [24 Aug 1971] 39322/72 Heading B8A [Also in Divisions B3 and G3]  Forces, on a strand S descending from a mould 10 to the horizontal are controlled initially by rolls 20, 20a (e.g. of a straightener 15), preceding the location where a starter bar 18 is disconnected, which rolls restrain descent of the bar 18 and then, by applying a tractive force, regulate the strand speed as its leading end advances through the curved path, when the speedregulating force reaches a desired maximum, a drive to a first set of other rolls 21, previously idling, is energized and then drives to further sets of other rolls 22, 23 are sequentially energized as the strand leading end continues to advance and as the force applied by the first set of rolls 21 reaches a desired maximum. The remaining rolls can be idlers. In another embodiment, a rigid starter bar is used and is removed at the entry to the curved guide path, the speed-regulating rolls being near the mould to push instead of pull the bar and strand through the curved path. The control (see Division G3) may be manual or through a mould melt-level mechanism or by a computer which energizes the auxiliary sets of rolls in response to load signals from the speedregulating rolls. Work rolls may be included in the line.
Patent GB-845785-A (GB)
Title: Improvements in or relating to liquid fuel burners
Inventor: WEIGHTMAN REGINALD CYRIL
IPC: F23C99/00
Filed: 1957-12-18
Abstract: 845,785. Liquid fuel burners. HUTCHISON, G., WEIGHTMAN, R. C., ROSE, L., and NELSON, H., [trading as HUTCHISON & CO., G.]. Dec. 17, 1958 [Dec. 18, 1957], No. 39327/57. Class 75(1). In an oil burner including an oil feed tube surrounded by a pressurised heated air jacket in which the tube and the jacket have adjacent outlets delivering into an air/oil mixing passage leading into a burner element, the fuel oil is pre-heated in the tube and atomized by the heated air in the mixing passage before entering the burner element. In the arrangement shown an oil feed tube 1, provided with a jet orifice or nozzle 2 at one end and fed with fuel from a valve controlled pipe 4 at the other, is arranged within a jacket 6 supplied with pressurised heated air from a pipe 15. The heated oil issuing from the nozzle 2 passes with pressurised heated air into a mixing passage 10, where the oil is atomized, and thence to a burner 11 provided with radially arranged flame jets 12. The air is supplied from a pressure on cylinder 21 to the pipe 15 which pipe 15 passes through a combustion chamber 16 when it is heated by perforated gas tubes 18 or electrical means. The air to the tubes 18 is supplied from the cylinder 21 to a tube 23 where it is mixed with gas supplied to a surrounding jacket 24. A small pipe 30 by-passed from the air feed pipe 22 to the cylinder 21 provides cooling air to a cabinet surrounding the air heater.
Patent GB-1020500-A (GB)
Title: A process for the production of an ether by the hydrogenolysis of a cyclic ketal
IPC: C07C43/13
Filed: 1964-09-28
Abstract: A process for the production of an ether having a hydroxy, alkoxy or aralkoxy group in the 2- or 3-position comprises reacting in the liquid phase a cyclic ketal of formula <FORM:1020500/C2/1> where each R independently is C1-8 alkyl or C6-10 aryl; each R1 independently is hydrogen, C1-8 alkyl or C6-10 aryl; X is hydrogen, hydroxy, C1-8 alkyl or C6-10 aryl; m is 0 or 1 and n is 0, 1, 2 or 3 with molecular hydrogen in the presence of a metal of Group VIII as hydrogenation catalyst and an acidic substance (including Lewis acids). Other metal promoters, e.g. chromium, may be present.  Solvents are optionally used, preferably those alcohols or ether alcohols equivalent to parts of the cyclic ketal starting material.  In examples: mixtures of ethylene glycol mono-and di-isopropyl ethers are obtained from 2,2-dimethyl - 1,3 - dioxolane and a mixture of 1-isopropoxy - 2 - propanol, 2 - isopropoxy - 1-propanol and propylene glycol diisopropyl ether from 2,2,4-trimethyl-1,3-dioxolane.
Patent GB-832968-A (GB)
Title: Improvements relating to domestic firegrates
Inventor: COLLINS AUSTIN
IPC: F24B1/193
Filed: 1957-12-18
Abstract: 832,968. Firegrates. PRIMA INDUSTRIES Ltd. July 17, 1958 [Dec. 18, 1957], No. 39411/57. Class 126 A slow combustion firegrate is characterized in that there is associated with the front 101 of the firegrate a frame 12 which is adapted to rest on the bed of the fireplace and to support, by means of a flange 122, the bed 15 of the firegrate and which bounds the space below the bed 15 so as to serve as a draught screen. The frame 12 is adjustably secured to the front of the grate by engagement of bolts 141 on side wings 104 of the front with slots 121 in the frame. Tapped holes in the frame may house screw bolts which are screwed outwards to grip the sides of the fireplace when the grate is installed. The bed 15 is reversible and the bars are tapered in vertical section, Fig. 6, so that entry of combustion air can be controlled by reversing the bed 15, located relative to the front 101 by engaging either of two pegs 151 in a hole 106 in a projection 105. Draught regulating doors 11 may support hobs 111. Specification 832,967 is referred to.
Patent GB-887065-A (GB)
Title: Improvements in or relating to the extrusion of metals
Inventor: HAWTIN LAURENCE REGINALD
IPC: B21C23/32
Filed: 1957-12-20
Abstract: In the extrusion of metals at a temperature below 600 DEG C. a compacted pad of lubricant is used comprising particulate lubricating material which remains unmelted at the extrusion temperature, incorporated with a material which is solid at room temperature but melts or softens at the extrusion temperature. The particulate lubricant material may be flaked graphite or molybdenum sulphide and the incorporated material may be powdered sulphur, wax, zinc stearate or a eutectic mixture of lithium chloride and potassium chloride; a binder such as stearic acid, dextrine or sodium silicate may be used to facilitate compacting.
Patent GB-883562-A (GB)
Title: A method of and apparatus for the continuous production of tubular containers
IPC: B29C48/09
Filed: 1957-12-20
Abstract: 883,562. Coating tubes &c. REIFENHAUSER, H. Dec. 20, 1957 [Dec. 20, 1956], No. 39682/57. Class 87(2). [Also in Group XXVIII] A method of coating the interior of a board, paper, &c. tube 8 with a thermoplastic material 5 e.g. polyethylene comprises forming a strip 12 of the board &c. into the tube 8 and feeding the tubes over an extrusion nozzle 4 which has a continuous discharge opening 7 through which the plastic material 5 emerges to coat the interior of the tube. The edges 11 of the strip 12 may overlap and have between them a filament of plastic material which under heat and pressure welds the overlapping edges 11 together. The filament may be applied from a roller 14, Fig. 3, heated by a heater 15, Fig. 6 (not shown), and the overlapping edges passed through rollers 16, 17, or the filament may be applied as a "bleed" 23 from the extrusion head, Fig. 7, and the edges 11 be passed through rollers 25, 26. In place of the heater 15 the pressing rollers 16, 17; 25, 26 may be heated. The interior of the coated tube may be filled with liquid, pulverulant a granular material, e.g. foodstuff through the bore 10 of the extrusion head.
Patent GB-1085079-A (GB)
Title: Substituted lactams and the preparation thereof
IPC: C07D221/04
Filed: 1963-12-31
Abstract: Novel compounds of formulae <FORM:1085079/C2/1> <FORM:1085079/C2/2> <FORM:1085079/C2/3> <FORM:1085079/C2/4> <FORM:1085079/C2/5> <FORM:1085079/C2/6> wherein each of R1 and R2 is a hydrogen atom, a hydroxy group, or alkoxy group having 1-6 carbon atoms, R3 is a hydrogen atom or an alkyl group containing 1-6 carbon atoms, R4 is a hydrogen atom, R5 is a hydrogen atom, or a hydroxy or acyloxy group, or a group of formula -COOH or -COOR11 in which R11 is an alkyl group having 1-6 carbon atoms, or R4 and R5 together with the carbon atom to which they are attached form a keto or cyclic ketal group, are prepared by condensing a phenethylamine with a compound of formula <FORM:1085079/C2/7> <FORM:1085079/C2/8> wherein Y is an alkyl group containing 1-6 carbon atoms, an aralkyl group or a hydrogen atom, and X is a hydrogen atom, = O, -COOH or -COOR11, to produce a compound of formula <FORM:1085079/C2/9> <FORM:1085079/C2/100> followed, if desired, by reduction to produce the corresponding compounds in which ring D is saturated, during which reduction any keto group represented by X is reduced to an hydroxy group.  This hydroxy group may subsequently be converted to an acyloxy group by treatment with a carboxylic acid anhydride.  The hydroxy group can be restored by boiling with a strong mineral acid.  The hydroxy group may also be converted to a keto group by oxidation with chromic anhydride in acetone.  The keto group may be converted to a cyclic ketal by treatment of a benzene solution of the compound with ethylene glycol in the presence of an acid catalyst.  The alkoxy substituents represented by R1 and R2 can be dealkylated employing hydrobromic or hydroiodic acids. Compounds in which R3 represents an alkyl group are prepared in the same manner as described above employing in the first stage compounds of Formula (VII) or (VIII) in which the 2-position is substituted by an alkyl group as well as a carboxyethyl group.
Patent GB-1171718-A (GB)
Title: Means for Securing Brake Discs to the Wheels of Vehicles
Inventor: GRUNBERG KARL-FRIEDRICH VON
IPC: F16D65/12
Filed: 1967-09-05
Abstract: 1,171,718. Disc brakes; bolted joints; retainers. W. BUSCH and H. FRIEDERICHS, [trading as BERGISCHE STAHL INDUSTRIE]. 5 Sept., 1967 [11 March, 1967], No. 40471/67. Headings F2E and F2H. Means for securing brake discs 13, 14 of a disc brake on each side of the disc portion 11 of a vehicle wheel comprises a radially resilient tubular member or sleeve 18 which is adapted to pass through holes 17, 21 in the wheel disc 11 and brake discs 13, 14 and each end of the member or sleeve 18 is provided with a radially outwardly extending flange 26 which engages an annular shoulder 16 or in an annular groove in the hole of each disc. The discs 13, 14 are secured to, e.g. a rail vehicle wheel by discs 19 held together by a bolt 20, or the ends of the sleeve 18 may be formed with projections (37, Fig. 3, not shown), which engage with grooves (35) in the brake discs 13, 14. The ends (36) of the projections (37) are shaped so as to facilitate insertion into holes (34) in the brake discs. The sleeve 21 has a slot 18a so as to allow thermal expansion of the discs radially outwardly. Each brake disc 13, 14 is located by recesses 23 on a corresponding shoulder 11a on the disc 11 of the wheel. The brake discs 13, 14 are spaced from the wheel disc 11 by hubs 16 and (24, Fig. 2, not shown), to allow cooling of the discs, which can be increased by fins (25) at the inner side of the discs 13, 14.
Patent GB-1214756-A (GB)
Title: Improvements in or relating to quick make-and-break switches
Inventor: GALBRAITH ARCHIBALD
IPC: H01H23/14
Filed: 1969-08-18
Abstract: 1,214,756. Snap-action switches. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 18 Aug., 1969, No. 41158/69. Addition to 1,189,971. Heading H1N. In a rocker-operated quick make-and-break switch as described and claimed in Claim 3 of Specification 1,189,971, the rocker 2 is provided on one side with a pair of removable projections 8, 9, each adjacent an end of the rocker 2 and adapted to co-operate with the rocker of an adjacent similar switch. The projections 8, 9 interlock the two adjacent switches. Rocker 2 is a moulding of plastics material, projections 8, 9 being integral therewith but capable of removal by cutting or breaking off.
Patent GB-1197997-A (GB)
Title: Dry-Shaving Apparatus
IPC: B26B19/38
Filed: 1967-09-08
Abstract: 1,197,997. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 8 Sept., 1967 [13 Sept., 1966], No. 41185/67. Heading B4B. A dry shaver comprises a shear plate 1 having hair inlet apertures, and a rotatable cutter 2 arranged to co-operate with the shear plate over an annular area thereof, the shear plate being supported on contact with the cutter over the annular area and, when so supported, having an arched radial cross-section between the inner and outer boundaries of the annular area. The shear plate comprises a continuous ring 17 located at the highest point in the arched radial cross-section of the shear plate and radial hairinlet slots 19. The cutter comprises a continuous ring 21 from which project outer and inner rings 24, 25 of blades which extend along tangents to circles concentric with the ring 21, the blades of both rings extending rearwardly with respect to the direction of rotation of the cutter. In a modification, the annular shear plate comprises a continuous ring (27), Fig. 4 (not shown), located at the inner periphery of the shear plate, the shear plate being formed with hair inlet slots (26) each extending from the ring (27) through the outer edge of the shear plate, slots (28) each extending from the highest point in the arched radial cross-section of the shear plate to the ring (27), and slots (29) each extending from the highest point in the arched radial cross-section of the shear plate through the outer edge of the shear plate the slots (28) alternating with slots (26) and the slots (29) lying in pairs between the latter.
Patent GB-1406631-A (GB)
Title: Distillation apparatus
IPC: B01D1/16
Filed: 1972-09-06
Abstract: 1406631 Multiple effect thin film evaporator AQUA-CHEM INC 6 Sept 1972 [4 Oct 1971] 41388/72 Heading B1B The invention relates to a multiple effect thin film evaporator comprising an upper initial effect 1, and a plurality of successive effects 2, 3,...8, 9...., arranged in at least one vertical column with horizontal heat exchange tubes 31-2, 31-3 etc arranged radially with respect to a common axis, the operational temperature and pressure in each column decreasing downwardly, and perforated trays 104 to feed liquid as a thin film over the tubes 31. Thus liquid to be distilled e.g. sea water, entering from initial heat exchanger 27 is heated as it passes down tubes 84, and the vapour formed passes via demister 100 to tubes 31-2 where it is cooled by the remaining liquid from chamber 90a together with a spray of fresh feed from pipe 106 which has been heated by the condensate from tubes 31-2. The vapour from stage 2 passes through tubes 31-3 where it is cooled by liquid from stage 2 and fresh liquid feed from pipe 106 which has been heated 'by condensate from tubes 31-3. The fresh feed makes up the volume of the liquid lost by evaporation to maintain a constant volume flow through the different stages.