baber/WOPTO huggingface dataset:
Patent GB-1334286-A (GB)
Title: Apparatus for measuring carbon monoxide and total hydrocarbons in gas sample
IPC: G01N33/00
Filed: 1971-11-30
Abstract: 1334286 Gas detectors MINE SAFETY APPLIANCES CO 30 Nov 1971 [8 Feb 1971] 55634/71 Heading G1N In a device for simultaneously measuring the amounts of carbon monoxide and total hydrocarbons in a gas sample, part of the sample is delivered via a conduit 11 to a hydrocarbon detector 1 while the remainder is simultaneously delivered via a conduit 12, to a second detector 2, the conduit 12 including a reactor 15 which converts carbon monoxide into methane. By subtracting the signal from the first detector from the second detector, the amount of carbon monoxide may be determined, the signal from the first detector indicating the total amount of hydrocarbons. As shown, the detectors are hydrogen flame detectors, and the reactor includes a catalyst 16, e.g. nickel mesh, heater 17, and a supply of hydrogen, via valve 18. The outputs of the detectors are applied to respective electrometers 21, 22 whose outputs are applied to amplifiers 24, 26, as shown so that a meter 31 indicates the total hydrocarbon amount and a meter 33 indicates the carbon monoxide amount. In an alternative, Fig. 2 (not shown), the outputs of the electro-meters are applied to equal value resistors connected in series between the outputs, a meter being provided between the output of electro-meter 21 and one resistor, and a meter being connected between the junction of the two resistors and earth.
Patent GB-1395670-A (GB)
Title: Hull for a motor boat
IPC: B63B1/18
Filed: 1973-11-30
Abstract: 1395670 Boat hulls HANNIBAL A ARTEMIS & CIE Ltd 30 Nov 1973 [1 Dec 1972] 55635/73 Heading B7A A hull for a motor boat in which the face part of the hull is intended to lift up out of the water when at speed, the centre of gravity being located in the rear half, comprises a keel of V-section with the included angle at the widest part being between 135 and 145 degrees, the width at this part being between 30 and 35% of the length of the hull, with the highest part of the keel positioned at its forward end, the keel being connected to the deck, which is trapezoidal with the minor base at the forward end, by plane surfaces, the trapezoidal deck surface being inclined at between 3À5 and 5 degrees to the horizontal, the said minor base being two-fifths the length of the keel (Œ6%) and the major base of the trapezoidal surface being equal to three-quarters of the length of the keel (Œ6%). In the preferred embodiment the rear half of the keel is horizontal with the V-angle constant, the forward half of the keel being curved progressively upwards with a progressively decreasing V-angle towards the forward end. To increase stability the rear one-third of the deck length is raised by at least 2 degrees with respect to remainder of the deck.
Patent GB-1189298-A (GB)
Title: Improvements relating to Fuses
Inventor: SLACK NORMAN ARTHUR
IPC: H01H85/153
Filed: 1966-12-13
Abstract: 1,189,298. Fusible cut-outs. ERNEST H. DERRICOTT Ltd. 4 Jan., 1968 [13 Dec., 1966], No. 55769/66. Heading H2G. In an end cap for a cartridge fuse the tag 12 (Fig. 1) has a foot portion 13 held between the inner face of the end wall 14 of the cap and a plate shaped or cup shaped member 19 which may be a press fit in the cap. The tag 12 may be formed of a single L-shaped member (Fig. 3, not shown), and the member 19 may be dished to accommodate the foot portion 13 instead of or in addition to the end wall 14 of the cap (Fig. 4, not shown). The foot portion 13 "may be secured by solder.
Patent GB-1365162-A (GB)
Title: Taker in roller for a carding machine
IPC: D01G15/84
Filed: 1971-12-02
Abstract: 1365162 Card clothing SCHUBERT & SALZER MASCHINENFABRIK AG 2 Dec 1971 [17 Dec 1970] 55941/71 Heading D1N A taker-in roller 1 of a carding engine is clothed with saw-tooth wire some coils of which have their teeth sloping in the rotational direction and some in the anti-rotational direction. Suitable combinations are illustrated in Figs. 2a, 2b and 2c. These arrangements allow a combing action in addition to mere transfer of fibre. The invention also provides a method of manufacturing such a taker-in roller in which at least two pieces of clothing wire are wound round a roller such that the teeth are oppositely inclined. In one embodiment, Fig. 7, fibre transferred to the card cylinder T may be returned to the taker-in 1 by a cylinder 3, if the fibre has not been fully opened, for re-working. Stripper knives A 1 , A 2  are provided. Other embodiments are illustrated in Figs. 3, 4 and 8 (not shown). Suitable angles for the edges of the saw teeth are given and also suitable speed relationships for the cylinders.
Patent GB-1420168-A (GB)
Title: Sandglass
IPC: G04F1/06
Filed: 1973-12-05
Abstract: 1420168 Sandglasses K TAMADA 5 Dec 1973 [8 Dec 1972 5 Feb 1973 2 Nov 1973] 56263/73 Heading G3T A sandglass comprises a closed transparent vessel 1 divided by a throttle portion 2 into chambers 3, 4 containing a quantity of granules but otherwise filled with a liquid. As described the granules are glass balls of 0.3-0.4mm. diameter and the liquid is water. Observation is assisted by an opaque back plate (21) Figs. 2-4 (not shown), and by wheels 5, 6 supported by shafts 7, 8 in the chambers. The lower wheel 6 is rotated by the stream 27 of falling granules. The vessel is sealed by resilient members (13, 14) of rubber or metal.
Patent GB-1212710-A (GB)
Title: Circuit arrangement for synchronizing a pal line switch
IPC: H04N9/465
Filed: 1967-12-12
Abstract: 1,212,710. Colour television synchronizing. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. (Philips' Gloeilampenfabrieken N.V.). 12 Dec., 1967, No. 56403/67. Heading H4F. In a colour television receiver for the PAL system, the colour synchronizing " burst " Bn (shown in one only of its two quadrature phase positions) is synchronously demodulated at the G-Y axis so that when the line frequency switch included in the demodulation circuit is operating at the correct phase (G-Y), the output Bn1 in response to the " burst " is small, whilst when the switch is operating in the incorrect phase (G-Y) 2  the output Bn2 is substantially at the maximum. The demodulation may be effected by a separate demodulator operating at the positive or negative G-Y axis, or by means of the R-Y and B-Y demodulators, Fig. 1 (not shown), whose outputs are matrixed to produce a G-Y signal. The output due to the " burst " is separated from the output due to the chrominance signal by means of a transistor gate stage, Fig. 3 (not shown), actuated by delayed line fly-back pulses. The separated output is integrated over a number more than 5 or more than 10 of lines in an integrating circuit to produce a signal for a correction signal generator which functions to change the phase of operation of the line frequency switch when a maximum amplitude signal is produced in response to the " burst." The gate stage may be constructed so as to require the input signal to exceed a threshold value. The bandwidth of the coupling circuit to the gate stage is restricted to reduce high frequency noise components. The integrated output from the gate stage passes through a diode which transmits only signals of a polarity which arises when the phase of operation of the line frequency switch is incorrect. The line frequency switch may function to reverse the phase of either the chrominance or reference signal applied to the demodulator. The demodulator may include a delay line system for separating the quadrature phase modulation components of the chrominance signal.
Patent GB-1369626-A (GB)
Title: Process for the purification of acrylic acid
IPC: C07C51/00
Filed: 1971-12-07
Abstract: 1369626 Acrylic acid DAICEL Ltd 7 Dec 1971 [8 Dec 1970] 56671/71 Heading C2C Acrylic acid is separated from a mixture with acetic acid by azeotropic distillation in the presence of iso-octane or nitroethane. The acrylic/acetic acid mixture may be that prepared by the vapour phase oxidation of propylene or acrolein. The pure acrylic acid is recovered from the base of the column and the acetic acid azeotope is distilled from the head. A reduced pressure with a polymerization inhibitor is preferred.
Patent GB-1414739-A (GB)
Title: Adjustable attenuator utilising pin diodes
IPC: H03H7/25
Filed: 1973-12-07
Abstract: 1414739 Gain control SABA SCHWARZWAELDER APPARATE - BAU - ANSTALT AUGUST SCHWER SOEHNE GmbH 7 Dec 1973 [8 Dec 1972] 56738/73 Heading H3T A variable attenuator for connection in the input circuit of a radio receiver comprises a first PIN diode D1 in series between the aerial and receiver terminals A, E respectively, a second PIN diode D2 shunting the receiver input terminals and with a positive bias applied to its anode, and a resistor R1 shunting the aerial terminals and in series in the emitter-collector path of a transistor T to which a gain-control signal is applied. The characteristic impedance of the aerial and resistance of resistor R1 are preferably substantially in the ratio 1 : 4.
Patent GB-1148148-A (GB)
Title: Ethylene interpolymer latex
IPC: D21H19/22
Filed: 1967-12-14
Abstract: 1,148,148. Copolymerizing ethylene. UNION CARBIDE CORP. 14 Dec., 1967 [20 Dec., 1966], No. 56810/67. Heading C3P. [Also in Division B2] A continuous process for the production of an ethylene copolymer latex comprises (1) continuously charging to a reactor in which constant conditions of temperature in the range 100‹ to 160‹ C., pressure of at least 5000 p.s.i.g. and concentration are maintained throughout (a) polymerizable monomer at a rate of at least 50 lbs./hr./cu. ft. of reactor volume and comprising at least 50 mole per cent of ethylene, 0À2 to 15 mole per cent of at least one α,#-ethylenically unsaturated C 3-8  carboxylic acid and the balance if any at least one monoethylenically unsaturated C 2-12  comonomer, (b) water at a rate of 0À3 to 3 lbs./lb. of monomer, (c) an alkali metal or ammonium persulphate catalyst and (d) a surfactant which is chemically stable and capable of forming abundant micelles under the reaction conditions at a rate of 0À005 to 0À05 lbs./lb. of monomer, the process conditions being selected to provide a space productivity of at least 25 lbs. of polymer/hr./cu. ft. of reactor volume, and (2) continuously recovering the latex so produced. The acid may be acrylic, methacrylic, ethacrylic, itaconic, isocrotonic, crotonic, maleic or fumaric acid, and may be added as a solution in water or an organic diluent, e.g. toluene; and the aliphatic comonomer may be a vinyl, acrylic, methacrylic, maleic or fumaric ester, a vinyl or vinylidene halide, acrylonitrile, N-vinyl pyrrolidone or bicyclo-[2.2.1]-heptene-2. The surfactant may be anionic, non-ionic or a mixture thereof, e.g. alkylarylsulphonates, bis-(alkyl)-sulphosuccinates, alkyl sulphates and alkylphenol/ethylene oxide condensates. Many examples are given of the copolymerization of ethylene and acrylic, methacrylic or itaconic acid, with and without ethyl acrylate, bicycloheptane-2, vinyl chloride, vinylidene chloride, vinyl acetate, glycidyl acrylate or 2-ethylhexyl acrylate, in the presence of potassium persulphate and sodium dodecylbenzene sulphonate, sodium bis-(tridecyl)- sulphosuccinate, sodium bis-(octyl)-sulphosuccinate, sodium lauryl sulphate, nonylphenyl polyethylene glycol ether and isopropylamine salt of dodecylbenzene sulphonate.
Patent GB-1283701-A (GB)
Title: Load support and discharge apparatus
Inventor: BALL IVOR ALDEN
IPC: B66F9/19
Filed: 1968-12-03
Abstract: 1283701 Attachments for fork-lift trucks I A BALL 4 Sept 1969 [3 Dec 1968] 57256/68 Heading B8H A skip 10 with feet 84 is tipped by a frame 50 which is pivoted by a double-acting ram 60 and is lifted by the forks of a lift-truck which engage in side members 34. A latch 66, 70 ensures that the frame 26 does not slide off the forks when they are tilted. A pin 86 retains the skip during tipping.
Patent GB-1168279-A (GB)
Title: The preparation of Unsaturated Nitriles and Catalysts for this preparation
IPC: B01J27/057
Filed: 1966-12-22
Abstract: 1,168,279. Oxidation catalysts. MONTECATINI EDISON S.p.A. 22 Dec., 1966 [28 Dec., 1965], No. 57477/66. Heading B1E. [Also in Division C2] Oxidation catalysts comprise the elements Te, Sb and O, the atomic ratio of Te and Sb being from 9:1 to 1:1 and the oxygen being present in an amount sufficient to insure that both the elements Te and Sb exist as oxygenated compounds. The catalysts may be supported on SiO 2 , A1 2 O 3  or fireclay. In examples SiO 2  is impregnated with H 2 TeO 4  and SbCl 5  and fired.
Patent GB-1450559-A (GB)
Title: Electronic timepieces
IPC: H01L21/8238
Filed: 1973-12-18
Abstract: 1450559 Electronic timepieces SUWA SEIKOSHA KK 18 Dec 1973 [29 Dec 1972]  58488/73 Heading G3T [Also in Division H1] An electronic timepiece utilizes the output of a high frequency quartz crystal transistor oscillator Fig. 1 (not shown) so as to energize a time display mechanism over a frequency divider circuit, Fig. 2, having a SIS structure wherein p-type Si monocrystal 16 is grown on spinel or sapphire 9 for the formation of separated P and N complementary F.E. transistors with drains 10, 11, sources 12, 13 and gates 15 overlying insulant layers 14. The sources, drains and gates are respectively connected by wiring deposited on the insulant substrate. The transistor substrates may comprise inverse conductive type regions Fig. 3 (not shown). A dynamic frequency divider, Fig. 4, responsive to oscillator waveforms, Fig. 5, may incorporate plural such complementary FET's.
Patent GB-1189190-A (GB)
Title: Motor Vehicle Doors
Inventor: KORNER REGINALD JOHN
IPC: B60J5/06
Filed: 1967-12-22
Abstract: 1,189,190. Motor vehicle doors. BRITISH MOTOR CORP. Ltd. 17 March, 1969 [22 Dec., 1967], No. 58531/67. Heading B7J. A sliding door installation 1 for a motor vehicle comprises three vertically spaced horizontal guides. 3, 4, 10 each guide having, throughout its length, a longitudinal opening for a respective arm 13, 13 or 19 which each carry a part-spherical roller 11 located within and co-operating with the corresponding guide, two of the guides 3 and 4 being fixed to the door 1 with arms 13 mounted on a rear pillar 9 of the vehicle body for pivotal movement about vertical axis and the third guide 10 being fixed to the vehicle body directly beneath the door opening, the arm of its co-operating roller 11 comprising a bracket 19 mounted on the door 1. The door 1 is opened by slidable movement from front pillar 8 to rear pillar 9 but prior to this the pivotal arms 13 are swung outwardly. Means to automatically prevent the door 1 from sliding open until pivotal arms 13 have swung outwardly to the full extent comprises a roller 22 mounted near the outer end of the uppermost of the pivotal arms 13 of guide 3 on a bracket 23 rigid with that arm 13 and co-operating with an extension 24 fixed to the rear end of guide 3, the arrangement being such that the roller 22 engages a curved end face of the extension 24 and prevents the door 1 from sliding open until the pivotal arms 13 have swung outwardly to the full extent. Provision for automatically retaining the pivoted arms 13 in the fully extended position throughout sliding movement of the door in either direction comprises a spring-loaded latch 26 pivoted to one side of the uppermost pivotal arm 13 which latch 26 engages a catch-plate 28 fixed to the rear pillar 9, when the door 1 has reached the end of its outward swinging movement. When the door 1, preparatory to being closed, has reached the end of its forward sliding movement a ramp 29 fixed to the door engages a tail 30 of the latch 26 so that latch 26 is released from the catch-plate 28. The door 1 may be equipped with drop-windows (not shown) or horizontally sliding window panels (not shown).
Patent GB-1204034-A (GB)
Title: Injection locked radio-repeater
IPC: H04B7/155
Filed: 1967-12-29
Abstract: 1,204,034. Radio signalling. TELETTRA LABORATORI DI TELEFONIA ELETTRONICA E RADIO S.p.A. 29 Dec., 1967 [13 Jan., 1967], No. 59206/67. Heading H4L. In a microwave repeater for angle-modulated signals, the incoming signals are supplied via a circulator 2 to control the frequency of a freerunning oscillator 3, e.g. a tunnel diode, of relatively high power. The amplified signal from circulator 2 is then injected via a circulator 4 into a similar oscillator 5 and the amplified signal from circulator 4 is similarly injected via circulator 6 into an oscillator 7. The output of circulator 6 is supplied to a frequencyconverter 8 which receives a further input from a high-stability oscillator 9 and the sum or difference frequency is passed via a circulator 10 to control a further free-running oscillator 11, the resulting signal being transmitted via antenna 12. The number of oscillators may be varied as required.
Patent GB-1404968-A (GB)
Title: Turbogenerator
IPC: H02K3/487
Filed: 1972-12-22
Abstract: 1404968 Securing coils in dynamoelectric machines ALLMANNA SVENSKA ELEKTKISKA AB 22 Dec 1972 [27 Dec 1971] 59309/72 Heading H2A In a 100 MVA 1500 RPM turbogenerator, a series of conductor bars 6 are disposed in axial slots 3 and circumferential end slots 4 in the rotor body 2 to form substantially rectangular shaped winding coils, and the slots are provided with toothed wedges 10, 13 for respectively clamping the sides/ends of the coils. In the preferred arrangement, the wedges 10, 13 are inserted radially into the slots at widened corner points of the rectangles, as described with reference to Fig. 8 (not shown), corner wedges (15) bolted in position (at 16) also being used. The wedges 10, 13 are channelled at 17, 18 and 22, 23 to allow cooling air currents to enter regions 9 when the rotor is in motion. The rotor may be of solid steel, as shown, or may be wholly or partially formed of discs, as in Figs. 10-14 (not shown). In the embodiment of Fig. 15 (not shown), the air enters the rotor slots via channels (33, 34) in the regions of the teeth of the wedges.
Patent GB-1495385-A (GB)
Title: Fluid-pressure actuator and to a fluid pressure system employing same
IPC: F16J10/00
Filed: 1974-12-23
Abstract: 1495385 Rollers; pistons BELOIT WALMSLEY Ltd 23 Dec 1974 [21 Dec 1973] 59364/73 Headings F2U and F2T The periphery of a flexible roller is loaded by a piston 22, having a rectangular section transverse to its direction of movement, acted on by a diaphragm 17 sealed round its entire periphery by clamping blocks 18, 19 above a recess 15 in a central body 13. The piston acts through a hinge pin 25 and shoe 26 on the interior of roller surface. The clamping blocks are chamfered at 18a, 19a to allow movement of the diaphragm under pressure supplied through ducts 12, 14.
Patent GB-1316166-A (GB)
Title: Printer
IPC: B41J1/60
Filed: 1970-12-17
Abstract: 1316166 Typewriters INTERNATIONAL BUSINESS MACHINES CORP 17 Dec 1970 [31 Dec 1969] 59906/70 Heading B6F A typewriter having a support post 122 for a printing head 118 includes a rotary table 66 having a plurality of loading means 100 thereon whereby the printing head can be loaded on to or unloaded from the post 122. When the printing head is required to be exchanged for one bearing a different type face, the print head carriage is returned to beginning of line position under keyboard or magnetic record control, line spacing being inhibited. The head is also automatically tilted to vertical position, and a cycle of operation is initiated whereby an arm 36 is depressed, urging a tube 102 downwardly to insert a blade 110 into a slot 120 in the head 118. This releases a retaining spring 117 from a groove 124 on the post 122. The arm 36 rises again, the head being retained on the tube 102 by the spring 117 frictionally engaging the blade 110. The table 66 rotates to selected position, and the arm 36 is again depressed to position on alternative head 118 on the post 122, the head being held down by a probe 116 under control of ratchet means 38 while the arm 36 rises once more to leave the head in position on the post 122. Impression density control means are automatically operated to compensate for the new type face.
Patent GB-1448140-A (GB)
Title: Painting plant
IPC: B08B15/00
Filed: 1973-12-31
Abstract: 1448140 Paint spray booth E I DU PONT DE NEMOURS & CO 31 Dec 1973 60212/73 Heading B1R [Also in Division F4] A spray booth tunnel comprises at least two zones 5, 6 shown side by side, in which automobile bodies are painted manually and automatically respectively, and a duct 29 for passing exhaust air from zone 5 to form all or part of the feed air stream for the zone 6. In the form shown, the exhaust air from zone 5 forms the whole feed air stream for zone 6. In another embodiment (Fig. 2, not shown), valves are provided to enable the duct 29 to be closed and the zone 6 to be fed with fresh air. The air is filtered at 15 and 21, and humidified at 17. The paint ladened air is passed into contact with water containing detergent delivered through nozzles 25, 27. The exhaust air from zone 6 may be supplied as feed air to a further zone or zones in which automatic spray painting is effected.
Patent GB-627143-A (GB)
Abstract: 627,143. Sawdust-burning stoves. HOVEY, R. B. June 16, 1947 No. 15766. [Class 126] In a stove for burning sawdust or the like as described in Specification 561,576 the lower part of the hopper is surrounded by a fluid heating jacket v fitted with supply and discharge connections w x.
Patent GB-653792-A (GB)
Abstract: 653,792. Compound sheet materials. KERR & CO., Inc., A. H. Nov. 21, 1947, No. 30951. Convention date, Aug. 15, 1947. [Class 140] In the operation of a machine for producing laminated panel units, such as described in Specification 646,939, a web 3 of synthetic resin-impregnated fibrous material is fed on to a platform 1 and series of mandrels 13, 50, supported on platform wings 10, 11 and equidistantly spaced thereon by guide-bars 12, 51, are successively, electromagnetically coupled to frames 25, 52 and conveyed, by means of a crane, to positions on the web 3, further layers 31, 65 of resin-impregnated material being fed on the mandrels, Fig. 6, from a reciprocable tank 30 attached to which is a frame 44 comprising a cut-off mechanism for the webs; the mandrels 50 are consecutively depressed into position by electrically-actuated fluid-pressure mechanism, Fig. 8. Each of two grooves 75, cut in the edges of the platform, carries a bar 76 forming a track for a sliding rail 77 which carries a fluid-pressure operated bar 81, conical studs 82 of which engage recesses 13c and 50c in the mandrels 13 and 50; the rail 77 is moved to convey the assembly of mandrels and webs to a central position over a heating element 72, a second element 73 is placed on the assembly and the elements electrically heated to polymerize the resin and consolidate the webs; each mandrel may be heated by an internal element 92 resiliently connected to a bus-bar fitted in the bar 81 (Fig. 14, not shown). The bars 81 are withdrawn from the panel unit, the mandrels expelled by fluid-pressure mechanism (Fig. 15, not shown), and the completed units are delivered to a table comprising rollers 74.
Patent GB-2030629-A (GB)
Title: A Ridge Covering for a Tiled Roof
IPC: E04D1/30
Filed: 1978-08-25
Abstract: A ridge covering for a tiled pitched roof comprises ridge caps (16) fastened to a ridge batten (15). Sealing strips (33) of asphalt bonded asbestos are provided for sealing between the longitudinal edges of the ridgecaps (16) and the roof tiles (13). Each sealing strip (33) comprises two downwardly extending portions (35) which are shaped to conform to the contours of the roof tiles and a channel (34) between the two portions in which the edge of the ridge cap (16) sits. Ridge seal members (40) are provided to seal between adjacent ridge caps (16). The ridge seal members (40) are of inverted T section moulded from plastics material Fig. 3 (not shown). A sheet metal bracket (17) for securing the ridge batten (15) to the rafter (10) is also described, Fig. 2 (not shown). <IMAGE>