baber/WOPTO huggingface dataset:
Patent GB-1221429-A (GB)
Title: Manufacture of moulding material starting from polyethylene terephthalate
Inventor: CONIX ANDRE JAN
IPC: C08L67/02
Filed: 1967-06-29
Abstract: 1,221,429. Polyethylene terephthalate moulding compositions. GEVAERT-AGFA N.V. 27 June, 1968 [29 June, 1967], No. 30140/67. Heading C3R. A moulding material is produced by mixing as a melt polyethylene terephthalate of inherent viscosity of at least 0À65 dl/g. (at 25‹ C. in 60 : 40 by volume phenol/tetrachloroethane) with (A) 0À1-10% by weight based on the polyethylene terephthalate of either (i) a fusible homopolymer of an α,# - ethylenically unsaturated compound containing an ester group, or (ii) a fusible copolymer comprising at least 10% of at least one compound as in (i) copolymerized with at least one α,#-ethylenically unsaturated compound, and (B) 0-1% by weight of a solid, inert, mineral substance of average particle diameter less than 10 Á. The ester compound is either an ester of a saturated carboxylic acid and an α,#-unsaturated alcohol, or an alkyl ester of an α,#-unsaturated carboxylic acid. Polyethylene terephthalate of required viscosity may be prepared from, e.g. film scrap by re-polycondensation. The solid, inert, mineral substance may be talcum, gypsum, silica, calcium carbonate, alumina, titania, dolomite, aluminium silicate or calcium silicate. The polymer may be obtained from, e.g. vinyl acetate, isopropenyl acetate or ethyl acrylate, and suitable polymers are copoly(ethylenevinylacetate), copoly(acrylonitrile-butyl acrylate), copoly(ethylene-ethyl acrylate), copoly- (ethyl acrylate-methyl methacrylate), copolyethylene-isobutyl acrylate), poly(isobutyl methacrylate) and poly(vinyl stearate). Glass fibre may be incorporated in the product moulding material.
Patent GB-1320783-A (GB)
Title: Digital data transmission
IPC: H04L7/04
Filed: 1970-06-23
Abstract: 1320783 Digital data transmission WESTERN ELECTRIC CO Inc 23 June 1970 [24 June 1969] 30337/70 Heading H4P Binary data signals to be transmitted over a transmission system employing the concept of partial response encoding are first converted into a multi-level signal according to a predetermined code which designates a particular multi-level signal combination as a synchronizing signal. In the arrangement described binary signals are grouped into groups of three which are converted into groups of two ternary signals, the ternary pair 1, 2 having no corresponding binary triplet, being used as a synchronizing signal. The partial response encoding concept concerns a transmission channel which has, or has been tailored by a band pass filter to have, a predetermined partial response to a multi-level input signal. That is the channel generates several spaced multi-level responses to each input signal so a received sample of the transmitted signal has contributions from several input signals. However by precoding the input signal according to the inverse of the channel response, that is the precoder generates a summation of contributions of successive past input signals and subtracts it from the present input signal, the channel has the same contributions restored and the received sample relates to only one input signal. By exciting the channel with multi-level input signals at the theoretical maximum transmission rate of 2w, where w is the channel bandwidth, the channel responses are of a greater number of levels. In the general arrangement shown in Fig. 1, binary signals from a data source 10 are converted into parallel form on three parallel lines a 3k  to a 3k-2 , each line carrying binary signals phase displaced by one bit. Gates in a binary to ternary converter 14 are opened every third bit to admit groups of three binary signals for conversion to two ternary signals which are each binary coded on pairs of leads B 2k , B 2k-1 . A precoder 16 codes the binary signals according to the inverse of the channel response by subtracting from the present signal a signal occurring two signalling intervals past. The binary signals are summed in a so-called D/A converter 18 and via a band-pass filter 20 tailoring the channel to a particular impulse response. The received multi-level signal is sampled in a multi-threshold device 24 to produce a binary coded ternary signal which is converted to a ternary signal at 26 and finally to a binary signal at 29. A monitor 28 detects the synchronizing 1, 2 ternary signal and according to its phase relative to the clock signal advances or retards a counter by 1 which on reaching a predetermined count adjusts the phase of the framing control signal. By converting to ternary signals the effective binary data bit transmission rate is one and a half times the channel symbol rate.
Patent GB-463277-A (GB)
Title: Improvements in and relating to combined plug couplings and electric switches
IPC: H01R13/707
Filed: 1935-11-04
Abstract: 463,277. Electric couplings. SANDERS & CO. (WEDNESBURY), Ltd., W., and WAITE, R. T. Nov. 4, 1935, No. 30399. [Class 38 (i)] Relates to a combined plug coupling and switch of the kind having a cover above the live sockets and in which the cover is moved out of the closing-position by the insertion of the earth pin of the plug into its socket, the cover being returned automatically to the closing-position when the plug is withdrawn. According to the present invention, the cover is held in the closing-position over the live pin sockets by a lever which is operated in one direction by a switch and in the other direction by a moving part of the switch in such a manner that the plug can be inserted only when the switch is " off." The live sockets 7, an earthed socket 6, and a switch 12 are mounted on an insulating base 5, and a cover 9 pivoted between the sockets is normally kept in the closing-position, above the sockets 7, by a spring 19. A tongue 15, pivoted in a vertical slot in the earthed socket 6, turns the cover 9 on its pivot to uncover the line sockets 7 when the earth pin of the plug is inserted in the socket 6. A lever 8, pivoted at 10 near the socket 6 has one end 14 which projects into the path of a projection 13 on a movable part of the switch 12. The other end of the lever 8 is formed into a hook 11 which engages the cover when in the closing-position above the sockets 7. A spring coiled around the pivot of the lever urges the hook 11 towards the cover 9, so that the hook locks the cover, and prevents the insertion of the plug, until the projection 13 swings the lever 8 to one side when the switch is moved to the " off " position.
Patent GB-1079911-A (GB)
Title: Improvements in or relating to spot type disc brakes
IPC: F16D65/54
Filed: 1964-08-04
Abstract: 1,079,911. Spot-type disc brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN UND ABMATITRENFABRIK KOMM.-GES.]. Aug. 4, 1964 [Sept. 4, 1963], No. 30504/64. Heading F2E. A spot-type disc brake comprises a rotatable brake disc, a fixed brake support 2, .a brake caliper 4 straddling a portion of the disc periphery and axially slidable in said brake support, a first brake pad 12 secured to one arm 8 of the caliper, a second brake pad 7 secured to a backing-plate 13 loosely mounted adjacent the other arm 9 of the caliper, piston/cylinder applying means .5, 6 acting directly on said backing plate and reactively, through the sliding caliper, on the first brake pad, and wear-adjusting and brake-centring device comprising an axially-extending pin 16 secured to the brake support, stop members 19 frictionally embracing the pin, and brake return springs 20 disposed between one stop member and said one caliper arm and between another stop member and said backing plate. The caliper arms are secured together by bolts 10 which are slidably-mounted by bushes 11 in lugs 3 of the brake support. The brake is provided with two adjusting and centring devices fixed to each lug. When the brake linings wear to the extent that the cup springs 20 are fully compressed on brake application, the stop members are frictionally displaced along the pins thereby compensating for wear and maintaining the correct brake clearance on brake release.
Patent GB-1178498-A (GB)
Title: Folding Dwelling Construction
Inventor: LOTIRON JOHN LOUIS
IPC: E04B1/344
Filed: 1968-06-26
Abstract: 1,178,498. Convertible vehicles. J. L. LOTIRON and P. MARTIN. 26 June, 1968 [27 June, 1967], No. 30533/68. Heading B7B. A vehicle expandible to form a dwelling comprises a floor having a central hexagon-shaped part, triangular extensions pivoted to each side, and triangular flaps pivoted to each free side of the extensions to form a contiguous floor supported on struts 17. A centrally positioned extensible mast carries a dome 1 to the underside of which is attached via springs an inflatable cover 2 which extends beyond the floor when erected.
Patent GB-858255-A (GB)
Title: Improvements in and relating to electric lamp reflectors
IPC: F21V13/04
Filed: 1958-09-24
Abstract: 858.255. Reflectors. SOC. LES PILES WONDER. Sept. 24, 1958 [Oct. 7, 1957], No. 30563/58. Class 97(1) A reflector for use with a source of light 4, comprises an annular-metallised light-reflecting part 2 and an annular convergent light transmitting part 5 which transmits part of the light incident on it by refraction only and the rest is transmitted by reflection and refraction. The reflector is made of solid transparent or translucent material and the two parts 2, 5 have the same focus F. Part of the light incident on the light transmitting part 5 is transmitted by refraction at surfaces 5, 7, 8, 9 and another part of the light is refracted at surface 5, reflected at surface 6 and then refracted at surfaces 7-9.
Patent GB-817840-A (GB)
Title: Improvements in or relating to a starter for an engine
IPC: F02N15/04
Filed: 1956-10-08
Abstract: 817,840. Engine starter drives. GARRETT CORPORATION. Oct. 8, 1956 [Oct. 19, 1955], No. 30581/56. Class 7(5) A starter for an engine of the type having a rotatable member, has a starting motor shaft, a gear train driven by the shaft, the gear train having a second rotatable member, and an overrunning clutch having a relatively loose rotary motion transmitting connection with the second rotatable member and the rotatable member of the engine. As shown the starter is powered by a turbine wheel 10 driven by air or gas but it could be powered by an electric motor. The turbine rotates a pinion 14 on its shaft 13. The pinion 14 meshes with reduction gears 15 carried on shafts 16. The shafts 16 rotate in a bearing frame 19 fixed to the outer casing 20. A ring gear 24, 25 meshes with spur gears 26 on the shafts 16. The drive from the ring gear 25 to the shaft 40 of an engine or other mechanism to be cranked or rotated is by way of an overrunning clutch 29, 36 having overrunning rollers 31. The ring gear engages a spline stub 28 of the clutch member 29 and the shaft 40 engages a spline stub 39 of the clutch member 36. The spline stubs are provided with slight clearance in their engagement relationship with the internal spline structures with which they co-operate permitting slight offset or misalignment.
Patent GB-731586-A (GB)
Title: Driving mechanism for an eccentrically rotating wave-guide nozzle for conical scanning
IPC: H01P1/06
Filed: 1953-11-05
Abstract: 731,586. Aerials. NAAMLOOZE VENNOOTSCHAP HOLLANDSE SIGNAALAPPARATEN. Nov. 5, 1953 [Nov. 7, 1952], No. 30634/53. Class 40 (7). A conical scanning aerial system consists of a wave-guide nozzle 5, rotatable about an axis which does not pass through the centre of the mouth of the nozzle, which is mounted so as to direct energy into a wave-concentrating device such as a reflector. The nozzle 5 is located on one side of a driving motor and is continued through the motor in the form of a hollow shaft 4, which is the rotor, and electrically coupled to a feeding wave-guide on the opposite side of the motor. In the embodiment shown the feeder 1 is coupled into a circular stationary wave-guide 2 which is collinear with the hollow rotor 4, the joint 11 being provided with choke means to prevent leakage. The rotor 4 is carried by ballbearings 6 and 7 and incorporates the armature 8 of the motor. The stator 9 is carried by the casing 10 which is attached to the end of the guide 2. A cover 12 of low-loss material is provided over the nozzle and the junction between the casing and the guide 2 is made tight so that the equipment is completely sealed and may be pressurized. The motor is preferably of the self-starting synchronous type but may be of another type, for instance a compressed air turbine fed through the wave-guide feed.
Patent GB-1267970-A (GB)
Title: Fuel proportioner
IPC: G05D7/00
Filed: 1969-06-17
Abstract: 1,267,970. Delivering measured quantities of liquids. POLITECHNIKA KRAKOWSKA KATEDRA SILNIKOW SPALINOWYCH KRAKOW. 17 June, 1969 [17 June, 1968], No. 30705/69. Heading B8N. [Also in Division F1] In apparatus for transferring a measured quantity of liquid, e.g. fuel from a fuel supply pipe, between an inlet 2 and an outlet 4, to a gas flowpipe between an inlet 3 and outlet 5, the volume of liquid transferred may be adjusted. The apparatus comprises a body 6 rotatable within a housing 1 containing the fuel and gas inlets and outlets, 2-5. In one embodiment, Figs. 2, 3, the fuel is transferred in a passage 18 in the body 6, one wall of the passage consisting of the end face of a plunger 7, slidable within the body and connected to a crosshead 16. In a second embodiment, Fig. 5, the volume of liquid transferred is varied by providing a number of fixed passages 8-13, the number of passages utilized on an axially slidable member 6, at any one time, i.e. within the conduit space, controlling the volume of fuel transferred. Further, a third embodiment, Fig. 7, comprises parallel transverse notches 8-15, Fig. 8 (not shown), instead of passages, the fuel inlet 2 and outlet 4, being adjacent and the gas inlet 3 and outlet 5 also being adjacent. The apparatus is used for periodic pneumatic injection of fuel in conventional piston engines.
Patent GB-476136-A (GB)
Title: Process and apparatus for the denitration of waste sulphuric acid mixtures or dilute nitric acid
IPC: C01B21/44
Filed: 1936-11-10
Abstract: In the denitration of waste sulphuric acid mixtures or of dilute nitric acid with the aid of vapours of sulphuric acid to obtain concentrated sulphuric and nitric acids respectively, the vapours are generated in a closed still 1 containing concentrated sulphuric acid and part of the vapours are led directly to a denitration <PICT:0476136/III/1> column 5 supplied with the acid to be treated and part to a sulphuric acid concentrating column 4 wherein dilute acid is concentrated before its admission to the still.  The pipe connection 7 between the still and denitration column may be externally heated by flue gases from the former.  The connection 6 between the still and column 4, which is also the acid introduction pipe to the still, may be of the relative dimensions referred to in Specification 475,055 so that the acid leaving the outlet end of the introduction pipe is equivalent in concentration to that in the still.  The denitrated acid from the column 5 is supplied, preferably from an intermediate section 11 maintained at 170 DEG  C., to the sulphuric acid concentrating column, the nitric acid vapours being condensed in a cooler 8.  Preheated air or other gas or the steam evolved from column 4 may be supplied additionally to the denitration column.  Specification 276,972, [Class 1 (ii)], also is referred to.
Patent GB-1059824-A (GB)
Title: Improved apparatus for processing signal information
Inventor: KOHLENBERG ARTHUR
IPC: H04L1/18
Filed: 1963-07-24
Abstract: 1,059,824. Error-correcting arrangements. CODEX CORPORATION. July 24, 1963, No. 30751/66. Divided out of 1,059,823. Heading G4A. A decoder for information coded in a diffuse convolutional code, is of the general type disclosed in Specification 1,059,823, from which the present Specification is divided, but includes an extended delay in the storage means through which the received message progresses, and also in the subsolution storage chain, so that the spread necessary for diffuse codes can be achieved.
Patent GB-428371-A (GB)
Title: Improvements in or relating to radio receivers or the like
IPC: H03D11/02
Filed: 1933-11-06
Abstract: 428,371. Valve circuits for wireless reception. PUGH, D. W., and BAIRD TELEVISION, Ltd., 58, Victoria Street, London. Nov. 6, 1933, No. 30763. [Class 40 (v)] A short-wave superhet receiver for television, in which the second detector is of the " quenched " or super-regenerative type, is characterized by the feature that the quenching frequency is at or near one of the " zero " or elided frequencies of the scanning system. The incoming signal may be applied to a backcoupled triode detector-oscillator, and the resulting " sum " frequency passed to a quenched triode for demodulation. Or, as shown, the intermediate frequency from the superhet stage is applied to the input circuit of a two-grid detector valve 9, the input grid 10 being back-coupled to the anode in the ordinary way, whilst the second grid 117 is back-coupled to the anode through the coils 12, 13 to produce a quenching frequency. The demodulated signals are passed through a filter 14, 15 (to cut out carrier and quenching frequencies) to a further amplifier, and thence to the scanning device. The quenching frequency is higher than the highest modulation frequency but lower than the intermediate frequency. Specification 393,960 is referred to.
Patent GB-624107-A (GB)
Title: Improvements in and relating to emulsifying and like apparatus
IPC: A47J43/044
Filed: 1947-11-14
Abstract: 624,107. Centrifugal machines. EDWARDS, F. D., and GREENER, F. W. G. Nov. 14, 1947, No. 30765/46. [Class 23] Apparatus for emulsification or like treatment of materials comprises a rotatable shaft 3 having secured to its free end a member 11 provided with cutting edges 12 and a cylindrical chamber 13, 14, closed at its upper end and being loosely journalled on and supported by the shaft 3. The material to be treated enters through the aperture 6 and is forced outwardly under the action of centrifugal vanes 4 through the oppositely directed cutters 12, 16. The cylindrical chamber 13, 14 may be provided with vanes 17 to retard its rotation, or means to prevent its rotation may be used.
Patent GB-499995-A (GB)
Title: Polyvinyl resin compositions for sizing textiles
IPC: C08F18/08
Filed: 1937-11-10
Abstract: An aqueous emulsion of polyvinyl acetate contains lauric ether of polyethylene oxide as emulsifying agent, a water-soluble plasticizer having a free hydroxyl group (e.g. benzyl alcohol), and methyl, ethyl, n- or iso-propyl, or iso-butyl alcohol.  The emulsifying agent may be used in an amount of 5-20 per cent calculated on the monomeric vinyl acetate.  The emulsion may also comprise thickeners, e.g. starch or natural gums or resins.ALSO:A size for textiles consists of an aqueous emulsion of polyvinyl acetate containing a lauric ether of polyethylene oxide as the emulsifying agent, a water-soluble plasticizer having a free hydroxyl group (e.g. benzyl alcohol), and methyl, ethyl, n- or iso-propyl, or iso-butyl alcohol.  The emulsifying agent may be used in an amount of 5-20 per cent calculated on the monomeric vinyl acetate.  The emulsion may also comprise thickeners, e.g. starch or natural gums or resins, and after application may be insolubilized by caustic alkali, ammonia, or organic bases.  In an example, lauric ether of polyethylene oxide, benzoyl peroxide, benzyl alcohol, and n-propyl alcohol are dissolved in hot water, and vinyl acetate added and polymerized by stirring under reflux. p
Patent GB-174729-A (GB)
Title: Improved means for building walls or the like of concrete or other material
IPC: E04G11/30
Filed: 1920-11-01
Abstract: 174,729. Davidson, T. G. Nov. 1, 1920. Moulding walls in situ. - Shutters which are adapted to be rotated through 180‹ in building concrete walls are formed with loops a slotted at intervals at their tops and bottoms, and drawrods c pass through these loops and through loops b on cross-wires B, which enter the slots in the shutter loops. After moulding, the lower rods c are withdrawn and the shutters are swung about the upper rod C. For stopping a wall, an end plate D having hinge or angle connections to the side shutters is used.
Patent GB-915173-A (GB)
Title: A machine for securing a metal strap, wire or like flexible binder, around a container, box, package or the like
IPC: B65B13/02
Filed: 1960-09-07
Abstract: 915,173. Bundling-machines. VEREENIGDE METAALVERPAKKING MAATSCHAPPIJ N. V. Sept. 7, 1960 [Nov. 5, 1959], No. 30863/60. Class 94(1). The wire or strap feed of a bundling-machine is stopped when the strap 7 has encircled the article k to be bound, by its end engaging a feeler 16, the feeler being pivoted obliquely in a recess in the guide track 5 of the machine bed and being retracted completely into it by the strap during tensioning. The feeler is spring-biased into the path of the strap and is moved by the latter to close a switch 20 causing disconnection of a solenoid 14 with consequent disengagement of the forward feed rollers 9, 10. A brake 23 engages the strap and a solenoid 15 is energized to initiate reverse feed by rollers 24, 25. The wire feeding means may be as described in Specification 885,371.
Patent GB-676800-A (GB)
Title: Improvements in or relating to automatic braking devices for gramophones
IPC: G11B17/02
Filed: 1949-12-01
Abstract: 676,800. Gramophones; starting and stopping. CLEMENTS, F. G., and COPPOCK, Ltd., J. T. Nov. 30, 1950. [Dec. 1, 1949] No. 30886/49. Class 40 (ii). As a tone arm 14 moves across a record, a rubber-covered arm 34 moves with it and allows an arm 28 carrying a brake pad 29 to rotate in an anti-clockwise direction under the action of a spring 30. The arms 28, 34 are connected by a shaft which is arranged in such a position that the brake pad is held clear of the turntable by the arm 34 at all positions of the tone arm outward of that which it assumes after playing a record.
Patent GB-856557-A (GB)
Title: Exposure regulating device for photographic apparatus
IPC: G03B9/64
Filed: 1957-10-02
Abstract: 856,557. Photo-electric exposure control. AGFA A. G. Oct. 2, 1957 [Oct. 5, 1956], No. 30904/57. Class 40(3). '[Also in Group XX] In a photographic camera in which the return movement of the shutter mechanism is retarded by pneumatic means under control of a photoelectric exposure meter, the shutter mechanism is coupled by a rod 9 to a flexible diaphragm 8 which is movable relative to a curved surface 16 at a rate determined by the covering of small holes 5 by a plate 12 on the pointer of the exposure meter 14. The block 15 provided with the curved surface 16 may be recessed at 19 below the holes 5 or it may be integral with the perforated plate 6 and have the holes 5 extended therethrough. Specification 748,406 is referred to.
Patent GB-1407727-A (GB)
Title: Process for concentrating thermolabile liquids
IPC: B01D1/00
Filed: 1973-06-28
Abstract: 1407727 Evaporator LABORATORIOS GRIFOLS SA 28 June 1973 [6 July 1972] 30915/73 Heading B1B A thermolabile liquid is concentrated by feeding it to rotating heated cylindrical vessel 2 where it forms a layer on the wall by centrifugal force, and applying a vacuum to the inside of the vessel 2 via conduit 7. Vapours from the liquid are condensed on coil 8. The vessel 2 may be heated by electrical, resistance coils 12, I.R. or H.F. radiation or by a hot fluid.