baber/WOPTO huggingface dataset:
Patent GB-1439557-A (GB)
Title: Dry cleaning method
IPC: D06F43/00
Filed: 1974-08-30
Abstract: 1439557 Dry cleaning STEAMATIC Inc 30 Aug 1974 [31 Aug 1973] 38105/74 Addition to 1389458 Heading D1A The method of the parent Specification 1389458 is improved by use of a solvent comprising a mixture of a known chlorinated hydrocarbon, e.g. trichloroethylene with an aliphatic hydrocarbon e.g. hexane, heptane octane, nonane, and/or a non-aqueous detergent capable of dissovling water-soluble soils and stains e.g. an oil-soluble petroleum sulphonate and sulpho succinate blend with an average molecular weight of 450 units. The detergent may comprise a polyethoxylated phenolic non-ionic emulsifier and an ethanolamine. The apparatus is the same as that described in the parent Specification.
Patent GB-1236997-A (GB)
Title: Coating and bonding of metals
Inventor: SMITH FRANK
IPC: B23K1/20
Filed: 1968-08-09
Abstract: 1,236,997. Coating with metals; electrodes for diaphragm cells; alloys. IMPERIAL CHEMICAL INDUSTRIES Ltd. July 14, 1969 [Aug.9, 1968], No.38107/68. Headings C7A, C7B and C7F. [Also in Division B3] A sheet of Ti, Zr or Ta or alloy of one of these metals is coated with a tinning metal e.g. Sn, Zn, Cd, or alloys thereof by heating the sheet and covering the surface with the tinning metal in a molten state, whilst moving an ultrasonically excited probe over the surface. The sheet is then soldered with a Pb-Sn or Pb-Bi alloy to a tinned steel sheet for use as an electrode in an electrolytic diaphragm cell. The sheet may be Ti with up to 14% Zr or Ti with up to 5% of Pt, Rh, or Ir or Ti with up to 10% of Nb or Ta. The tinning metal may be an alloy consisting of 75% Sn-25% Zn, or 99% Sn with 1% of Zn, Pb, Sb or Bi.
Patent GB-346418-A (GB)
Title: Improvements in or relating to change-speed gearing for motor vehicles
IPC: F16H3/24
Filed: 1929-12-13
Abstract: 346,418. Variable-speed gearing. STANCLIFFE, C. W., Astor House, Aldwych, London. Dec. 13, 1929, No. 38199. [Class 80 (ii).] A pinion 8 sliding on and rotating continuously with the driven shaft 2 of a speed gear of the countershaft type is combined with a unidirectional clutch consisting of a spring coil 15 carried by a ring 16 sliding on reduced portions 17 of teeth 12 on the driving shaft 1, allowing the driven shaft to overrun in the top gear position. By sliding the pinion 8 fully to the left, dogs 13, 14 come into engagement, giving a solid drive in both directions of relative rotation.
Patent GB-868609-A (GB)
Title: Improvements in and relating to sound generator
IPC: A01M29/20
Filed: 1958-11-26
Abstract: 868,609. Bird and animal scares. REICHLE. F. Nov. 26, 1958 [Nov. 26, 1957], No. 38208/58. Class 6(2). A sound generator producing periodica explosive reports for scaring animals or birds comprises a gas generator constituted by a closed container 1 containing carbide into which water drips through a valve 4 from a tank 2, the upper part of the tank being closed by a flexible diaphragm 6 to serve also as an expansior chamber storing acetylene passing througt the pipe 5 from the container 1, the pressure exerted by the gas causing the compression of a spring 9 and movement vertically of a cam 12 resulting eventually in the snap-over action of a cam-follower constituted by a wheel 14 and a linkage 13 to the position shown in broken lines thus opening valve 15 and allowing gas to flow from the expansion chamber through a flexible coupling 19 into the combustion chamber 20. On the pressure within the expansion chamber being released, the spring 9 expands so that the cam-follower resumes the position shown in full lines thereby closing the valve 15 and causing the rotation of ratchet wheel 17 to operate suitable means to ignite the gas within the combustion chamber.
Patent GB-344933-A (GB)
Title: Improvements in or relating to clips and like gripping devices
IPC: C14B1/26
Filed: 1929-12-14
Abstract: 344,933. Spring clips. TURNER TANNING MACHINERY CO., Ltd. and SCHETTLER, G. A., Railway Foundry, Bramley, near Leeds. Dec. 14, 1929, No. 38352. [Class 44.] A gripping device suitable for stretching hides, comprises a frame, part of which forms one jaw, and a spring-pressed pivoted thumb lever with the other jaw between the pivot and the thumb-piece. The frame has an attaching prong, screw or the like. The frame 1 has a jaw 12a and a member 13 pivoted at one end and having a thumb-piece 15 at the other end. The jaw 14 is situated on the member 13 intermediate its ends. The member 13 is spring-pressed and is released by the thumb-piece. The frame 1 carries a spike 4 in a boss 12 for attaching the clip to a stretching board, or beam. The spike may be replaced by a nail or screw. A finger-piece 16 is provided for pulling the clip to stretch the hide. Specifications 339,688, [Class 44, Fastenings, Lock &c.], and 344,935 are referred to.
Patent GB-1515537-A (GB)
Title: Recovery of chlorinated polymers from solution
IPC: C08F6/12
Filed: 1975-09-19
Abstract: 1515537 Isolation of chlorinated polymers IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Aug 1976 [19 Sept 1975] 38553/75 Headings C3E and C3L Chlorinated aliphatic hydrocarbon polymers and copolymers prepared in a chlorinated hydrocarbon solvent are isolated by treatment with hot water or steam in the presence of at least 0À5 wt. per cent (based on polymer) of a polymer having a second-order transition temperature below 0‹C. and derived from an olefinic hydrocarbon or chlorohydrocarbon. In examples, chlorinated natural rubber, polyisoprene, polybutadiene, polyethylene or polypropylene in carbon tetrachloride solution are precipitated by addition to hot water, there being added to the solution, prior to precipitation, polychloroprene, atactic polypropylene, butadiene/styrene copolymer, degraded or undegraded cis-1,4-polyisoprene, or liquid polybutadiene. The products contains less residual solvent if the polymer is not added.
Patent GB-1012593-A (GB)
Title: Nozzle for liquid dispensing apparatus
Inventor: SPALDING ROBERT GEORGE
IPC: B67D7/42
Filed: 1963-10-01
Abstract: 1,012,593. Petrol pumps. WAYNE TANK & PUMP CO. Ltd. Sept. 28, 1964 [Oct. 1, 1963], No. 38691/63. Heading A4T. In a petrol dispensing nozzle 1 petrol and oil are fed through passages 5 and 6 respectively to a mixing chamber, which is positioned upstream of the main valve body 2 and has a transparent wall 12, to enable an attendant to check that oil is flowing from passages 6 and 8 through apertures 11 in a metal cap 10 to the mixing chamber. The oil passage 8 has a spring loaded check valve 9 screwed to its upper end.
Patent GB-859199-A (GB)
Title: Improvements relating to independent wheel suspension
IPC: F16C11/06
Filed: 1958-12-02
Abstract: 859,199. Road-vehicle independent wheelsuspensions. LANGEN, V. Dec. 2, 1958 [Dec. 11, 1957], No. 38875/58. Class 108(2). [Also in Group XXV] Extensions 4 of a king pin 1 of an independent road wheel suspension each carry a ball member 5 of a ball joint (see Group XXV) the socket member 9 of which is rigid with a wishbone link 10. The end 4a of the extension 4 may be radiussed so as to engage the spherical surface of the member 9. Alternatively the end surface of a retaining nut 6 may be radiussed to serve this function.
Patent GB-1219946-A (GB)
Title: Extrusion process and apparatus
Inventor: BARKER PETER JOHN
IPC: B29C48/74
Filed: 1968-08-14
Abstract: 1,219,946. Extruding thermoplastic polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 15 July, 1969 [14 Aug., 1968], No. 38926/68. Heading B5A [Also in Division B1] In the screw extrusion of thermoplastic polymeric materials, an intimate mixture of an additive and a first polymer is injected as a melt into a molten stream of a second polymer, the injection taking place between two conveying zones of the screw extrusion apparatus. As shown, a duct 10 connects zones 2 and 6 separated by a cylindrical collar 4, and injection is by means of a screw 11 in a direction substantially counter to the flow through duct 10 to promote mixing. A further collar 3 and duct 9 are provided, as well as vents 7, 8, to which vacuum may be applied. In a modification, the apparatus may comprise at least two separate screw extruders one feeding directly into the feed point of the other via a duct and the injection being into this duct. Further, screw 11 may be replaced by a ram. The first and second polymers may be different, particularly when the first polymer is itself the additive, e.g. as an impact modifier, but are preferably similar or the same. Specific polymers mentioned are polyethylene, polypropylene, poly-4-methyl pentene-1, polystyrene, PVC, polyvinylidene chloride, polymethyl methacrylate, polyamides and polyoxymethylenes. Additives mentioned are pigments, fillers, e.g. glass fibres or mica, stabilizers, lubricants, cross-linked polymers and dyestuffs. In a first example, polymerized methyl methacrylate is delivered to the extruder of Fig. 1 from a twin screw extruder and a melt compounded mixture of 50 parts by weight of barium sulphate pigment and 50 parts by weight of polymethyl methacrylate is injected by screw 11, the resultant mix being extruded to give an opal sheet. In a second example, using the same materials, the screw extruder is fitted with a mixing head as described in Specification 843,849 (see Division B1) and reference is also made to the use of a mixing head as described in Specification 787,764 (see Division B1).
Patent GB-1478497-A (GB)
Title: Workpiece handling device in a machine tool
IPC: B23D41/06
Filed: 1974-09-09
Abstract: 1478497 Workpiece transferring OSWALD FORST MASCRINENFABRIK UND APPARATE BAUANSTALT GmbH 9 Sept 1974 [15 Sept 1973] 39196/74 Heading B3B A workpiece handling device, e.g. for feeding workpieces in workpiece holders 18 1 -18 9  in sequence to a plurality of machining stations 1-4 in a broaching machine, comprises a workpiece feeding device 23 actuated reciprocally by a pneumatic or hydraulic actuator 27 for feeding workpiece holders to the machining stations 1-4, and a transfer device 6 movable reciprocally by a pneumatic or hydraulic actuator 9 in a direction perpendicular to the movement of the feeding device 23 to transfer workpiece holders between machining stations, the transfer device 6 comprising a sliding plate which carries upstanding spaced drivers 16 which engage opposite sides of the square sectioned workpiece holders 18 to move them in the transfer direction, and the feeding device comprises a carriage movable on guide rods above the transfer device and carrying depending pairs of drivers 29 which engage the other pair of opposite sides of the square sectioned workpiece holders to move them in the feeding direction, the transfer device carrying a greater number of workpiece holders than there are machining stations. Workpieces 37 are fed down a feed shoot 36 horizontally and pressed into a workpiece holder 18 by a cylinder 38 on a table 41. The workpieces are a close fit in the holders 18 and a spring detent also engages the workpiece (Fig. 4, not shown). The table 41 is pivoted by a cylinder 40 to raise the workpiece holder to a vertical position on the end position of the transfer device. The handling device may be used in packaging, e.g. where a plastics bag is filled, closed, and marked in a plurality of stations.
Patent GB-391983-A (GB)
Abstract: 391,983. Stove plate-racks. MITCHELL, RUSSELL, & CO., Ltd. and MITCHELL, J., Chattan Foundry, Bonnybridge, Stirlingshire. May 20, 1932, No. 14327. [Class 126.] A plate-rack of the kind which is pivotally mounted on a stove, so that it may be folded down when out of use, is made in two parts side by side and independentlv movable to or from the horizontal position. In the form shown in plan, Fig. 3, the rack is formed in two parts 1, 7, each supported at the outer end on a wall of the stove and at the inner end on a bracket 11, Fig. 4, which is removably mounted on the rear wall by means of pins 30, which engage bayonet-form slots in it. The part 1 is supported by pins 3, 4 carried respectively in a U-form bracket 13 on the side wall and in a notch 12 at the rear of the bracket 11, and by projections 17, 19 which engage under the front of the plate. On drawing the plate forward, slots 21, 22 in the edges register with the projections 17, 19 and allow the plate to be turned down about the pins 3, 4 as pivots. A lug similar to the lug 27, Fig. 4, on the under side of the plate engages behind the projection 17 to prevent forward movement until it is disengaged by raising the plate. The other portion of the plate is similarly mounted. The part 1 projects back into a recess 5 of the stove, the rearwardly-projecting part being supported on lugs 25, 26.
Patent GB-807384-A (GB)
Title: Improvements in clamping devices for fixing together tubes or bars
IPC: E04G7/16
Filed: 1956-12-27
Abstract: 807,384. Scaffold clamps. LEFEBVRE. M. Dec. 27, 1956. No. 39261/56. Class 20(2) [Also in Group XXV] Scaffold clamps comprise two parts 2, 3 hinged together at one end by a pin 4 and having at the other ends cams 5, 6 adapted to be engaged by cams 7, 8 on a ring 9 which on being turned causes the parts 2, 3 to grip a tube T. The engaging parts may be conical with interengaging helical projections to move the ring towards the clamp. The clamp is connected by a pivot 11 to a collar 10 in which a second tube is gripped by a key driven into a socket 12.
Patent GB-351907-A (GB)
Title: Improvements in controlling apparatus for electric motors
IPC: H02P1/04
Filed: 1929-12-23
Abstract: 351,907. Master control of motors. SULLIVAN MACHINERY CO., 400, North Michigan Avenue, Chicago, U.S.A. Dec. 23, 1929, No. 39300. Convention date, Jan. 2. Void [Published under Sect. 91 of the Acts]. [Class 38 (iii).] Safety arrangements.-Controlling apparatus for a motor 13 for mixing machines is such that if the supply is temporarily interrupted, a current failure switch 69 is opened, causing the contactors 35, 36 to open and the contactor 34 to close, so that the automatic contactor starting system is reset, and the motor starts again with resistance in series when the supply is renewed. To start the motor a pilot switch 31 is closed energizing a coil 48 and closing contact 60, thereby closing the contactor 34, which closes switch 65, opens switch 50, and so de-energizing coil 48. Thus switch arm 59 now makes contact at 66. Breaking contact at 60, interrupts the circuit of coil 63 which, however, remains energized through the newly closed switch 65. Making contact at 66, after the time required by the current in coil 48 to become zero, closes contactor 35 through the current failure switch 69 cutting out section 32 of the starting resistance. The coil 74, originally energized by the voltage crop over section 32 of the resistance, is consequently de-energized and the switch 78 closes, energizing coil 79, closing contactor 36, and opening switch 53, so that the motor is placed directly across the mains 14,15. When the switch 53 opens the contactor 34 is opened, but contactors 35, 36 remain closed all the time the current failure switch 69 is closed. If overload occurs a switch 56 opens and breaks the circuit of all contactors, and resets the controlling apparatus. Specification 243,964, [Class 79 (v), Motor vehicles, Steering &c.], is referred to.
Patent GB-1486473-A (GB)
Title: Rotogravure printing apparatus
IPC: B41N1/06
Filed: 1974-09-10
Abstract: 1486473 Gravure printing plates GRAVURE RESEARCH INSTITUTE Inc 10 Sept 1974 [19 Sept 1973] 39477/74 Heading B6C Individual gravure plates, e.g. single-page or double-page plates, are attached to printing cylinders by providing a non-resilient magnetically attractable backing, e.g. steel, to the plates and making the printing cylinder magnetic. It is thereby possible to mount a plurality of such plates on a rotogravure cylinder in abutting relationship without any consequent loss in printing quality. Any gaps between plates may be filled with non-porous, ink-insoluble filler such as epoxy resin (13), Fig. 4 (not shown). Preferably the leading and trailing edges of plates 2 are slightly angled to the axis of rotation of magnetic cylinder 10, Fig. 3; alternatively the doctor blade may be angled. When used in an offset press, Fig. 6 (not shown), the blanket 36 on offset cylinder 34 may have undercuts 50, 52 corresponding to the gaps between plates.
Patent GB-1218276-A (GB)
Title: Scale and corrosion inhibition
Inventor: STANFORD JAMES RICHARD
IPC: C07F9/09
Filed: 1968-08-19
Abstract: 1,218,276. Treating water. NALCO CHEMICAL CO. 19 Aug., 1968, No. 39580/68. Heading C1C. [Also in Divisions C2, C7 and E1] A process for preventing scale deposition from water containing scale-forming agents such as BaSo 4 , CaSo 4 , CaCo 3  and mixtures thereof, comprises adding to said water an effective inhibiting amount of a polyphosphate ester or mixture of polyphosphate esters obtained by reacting an hydroxy amine with polyphosphoric acid and/or phosphorus pentoxide (see Division C2).
Patent GB-1447355-A (GB)
Title: Apparatus for converting digital or other signals having a  limited set of possible values
IPC: H04N5/91
Filed: 1972-08-24
Abstract: 1447355 Digital converters INDEPENDENT BROADCASTING AUTHORITY 21 Aug 1973 [24 Aug 1972] 39606/72 Heading H3H Apparatus for converting a signal which has a limited set of possible values, Fig. 3(a), comprises means providing this signal, means for generating a cyclic reference signal, Fig. 3(b), providing in each cycle the limited set of values corresponding with the possible values of the input signal and at least one additional value and a comparator responsive to produce an output, Fig. 3(c), when the value of the input and reference signals coincide. The output from the apparatus may provide a binary signal, Fig. 3(d), which changes polarity upon receipt of a comparator output pulse. Reconstitution of the original signal is shown in Fig. 4, the input, Fig. 4(e), being differentiated, Fig. 4(f), and being used to energize and control a resonant circuit to produce an output, Fig. 4(g), at a multiple of the required clocking frequency which is divided and used to provide the reference signal, Fig. 4(h). The pulses derived at 4(f) are used to sample the reference signal 4(h) to produce the signal shown at Fig. 4(j). This signal is then sampled at the end of each cycle of the reference signal to provide the required signal 4(k). The apparatus is for use with the recording system described in Specification 1,445,337 (see Division G4) which is also described in the present Specification.
Patent GB-1247990-A (GB)
Title: Method of treating wollastonite
Inventor: COHEN MORRIS IRVIN
IPC: C09C1/28
Filed: 1969-08-08
Abstract: 1,247,990. Ca phosphate pigment or filler. E. E. ROSENBERG. 8 Aug., 1969, No. 39821/69. Heading C1A. An aqueous slurry of Cu metasilicate and phosphoric acid such that the molar ratio Ca : P is greater than 1À5 : 1 are reacted, with agitation, the slurry product being subjected to shearing by passing through a homogenizing valve, to give a crystalline or amorphous pigment or filler material. The product may be passed through a wet classifier to further reduce abrasiveness. One form of classification recommended is the hydrocyclone the overflow from which provides the product, whose abrasiveness is further reduced by being subjected to high shear forces. The underflow from the hydrocyclone can be recycled and mixed with fresh feed material, where it serves to reduce the abrasiveness of the product still further. The calcium metasilicate may be in the form of Wollastonite.
Patent GB-1366663-A (GB)
Title: Process for the preparation of cyclopenta /f/ /1/ benzopyrans and 1h-naphto/2 1-6/ pyrans
IPC: C07D309/04
Filed: 1971-08-25
Abstract: 1366663 Substituted tricyclic compounds F HOFFMANN-LA ROCHE & CO AG 25 Aug 1971 [26 Aug 1970] 39890/71 Heading C2C Compounds of formula   where R<SP>1</SP> is primary alkyl with 1-5 carbon atoms, R<SP>14</SP> is H, lower alkyl, aryl or aryl lower alkyl, Z is carbonyl or R<SP>2</SP> is H, lower alkyl, lower acyl, aryl lower alkyl or tetrahydropyran-2-yl, R<SP>3</SP> is H, or lower aliphatic hydrocarbyl, and m is 1 or 2, are prepared by reacting compounds of formula with R<SP>14</SP>-CH 2 -M, where M is alkali metal or Mg-halogen, followed by hydrolysis. If Z is carbonyl, it can be protected during reaction by ketalization. If R<SP>2</SP> is initially acyl, it is hydrolysed to OH, which may be reacylated. The product may be optically active, preferably with 6aS configuration.  Compound III may be prepared as described in Specification 1,366,664.
Patent GB-1426377-A (GB)
Title: Oximeter for monitoring oxygen saturation in blood
IPC: G01N21/31
Filed: 1973-08-23
Abstract: 1426377 Photo-electric blood oxymeters G G VUREK 23 Aug 1973 [15 Sept 1972] 39946/73 Heading G1A An oxymeter comprises two light sources of different wavelengths energized alternately to illuminate a blood sample the light from which is received by a detector and the difference signal used to control the intensity of one of the light sources and hence produce an output proportional to the ratio of the absorbancies at the two wavelengths.  As shown, Fig. 1, the blood sample is illuminated alternately by means of two LEDs 18, 21 emitting visible red light at 655 nm and IR light at 905 nm (close to the haematocrit value 805 nm) respectively. The light scattered or transmitted by the sample is received by a detector 14 connected to a differential amplifier 10. When source 21 is energized over switch 23, S1 is closed and S2 opened so that the output voltage of the detector is stored as a reference value voltage on capacitor 13. When S1 and S3 are opened and S2 closed a voltage-to-current converter 15 energizes source 18 forming a feedback loop which adjusts the intensity of source 18 until the detected signal is equal to the stored voltage. The output voltage is then equal to the ratio of the optical absorptions in paths T 2  and T 1  and therefore to the percentage oxygen saturation of the sample. Typical circuit arrangements are exemplified using phototransistors as the detectors and transistors as the switches, Figs. 4, 8 and 9 (not shown) The blood may flow through a plastics tube which can be inserted into a channel in an aluminium block within which are secured the light sources and detectors, Figs. 5 and 6 (not shown), and such an arrangement is suitable for measurements in vivo.
Patent GB-1240203-A (GB)
Title: An interlining for a protective jacket
Inventor: ANGEL ARNOLD
IPC: A41D1/02
Filed: 1969-08-09
Abstract: 1,240,203. Insulated garment lining. A. ANGEL. 23 July, 1970 [9 Aug., 1969 (2)], Nos. 39946/69 and 39947/69. Heading A3V. A thermally insulating interlining 11 for a protective jacket comprises one or more layers of insulating material in the form of a jacket, preferably sleeveless, a slit 12 being provided across each shoulder portion which extends from an armhole 13 or cuff to the neck opening 15 of the jacket, and an attachment means, preferably a separate fastener element, e.g. interengageable pile fabric tabs 16a, 16b, operate to join the opposed slit edges together. The interlining is preferably formed in combination with a double skinned garment of waterproof material, e.g. coated nylon, the inner skin 22 and the outer skin 21 being marginally joined. The garment is provided with further attachment means, preferably interengageable pile fabrics, adapted to removably receive an interlining. The outer body skin 21 may be formed from an upper element 21a forming shoulders and sleeves of the cutter skin, and a lower element 21b forming the remainder of the skin, the two elements being joined by a single line of stitching which may be treated internally with waterproof dope. The interlining, which may be of foamed plastics material and textile covered, is positioned between the skins by insertion at the lower marginal edges 23, 24. The inner body skin 22 comprises a single element having inner sleeve skins 27 attached to the outer skin at cuffs 28 so that seams 26 in the outer skin are not co-incident with seams 29 in the inner skin. Openings at the lower marginal edges 23, 24 and scallops 36 at the cuffs allow air circulation between the skins.