baber/WOPTO huggingface dataset:
Patent GB-1022405-A (GB)
Title: Improved polymeric compositions
Inventor: LOOKER EDWARD GIBSON
IPC: C08F14/06
Filed: 1963-12-09
Abstract: In a process for polymerizing vinyl chloride, optionally with up to 20 weight per cent of at least one other ethylenically unsaturated monomer, in an aqueous medium in the presence of a polymerization catalyst and separating the polymer from the aqueous medium, a stabilizing component is added to the aqueous medium before or during the separation step, which stabilizing component comprises at least one lead salt insoluble in both water and vinyl chloride and capable of absorbing hydrochloric acid, optionally together with up to 50 weight per cent of at least one other lead salt.  Specified comonomers are vinyl acetate, vinylidene chloride, alkyl esters of acrylic, methacrylic, maleic and fumaric acids, acrylonitrile, methacrylonitrile and maleic anhydride.  Specified insoluble lead salts are lead carbonate, lead silicate, lead chlorosilicate, lead phosphite, triboric lead sulphate and basic lead carbonate. Optional lead salts specified are lead stearate and dibasic lead stearate. Other additives such as lubricants, e.g. calcium and magnesium stearates, stearic acid, glyceryl monoerucate, glyceryl monostearate, cetyl palmitate, stearyl alcohol and cetyl alcohol; secondary stabilizers, e.g. cadmium stearate and laurate; plasticizers; pigments, e.g. titanium dioxide and carbon black; processing aids, e.g. methyl methacrylate/ethyl acrylate copolymers, styrene/acrylonitrile copolymers and chlorinated polyethylene; and impact strength improvers, e.g. calcium carbonate which may be coated with stearic acid, acrylonitrile/butadiene/styrene copolymers and ethylene/vinyl acetate copolymers. Specified polymerization catalysts are hydrogen, benzoyl and lauroyl peroxides, alkali metal and ammonium persulphates, percarbonates and peracetates, peroxydicarbonates and azo compounds.  Polymerization may be effected in the presence of emulsifying and dispersing agents, e.g. sodium dioctyl sulphosuccinate, sulphonated diesel oil, sodium lauryl sulphate, stearamidopropyl dimethyl - b -hydroxyethyl ammonium nitrate, cetyl pyridinium bromide, cetyl trimethyl ammonium bromide and polyethylene oxides, and gelatin, methyl cellulose and hydrolysed polyvinyl acetate. In examples vinyl chloride is polymerized in aqueous media in the presence of: tribasic lead sulphate, lead stearate, calcium stearate, wax, hydrolysed polyvinylacetate and (1) lauroyl peroxide and (2) azodiisobutyronitrile; azodiisobutyronitrile, hydrolysed polyvinyl acetate and (3 and 6) tribasic lead sulphate, (7) tribasic lead sulphate and lead stearate, (8) tribasic lead sulphate, lead stearate and dibasic lead stearate, (9) tribasic lead sulphate, lead stearate, dibasic lead stearate and calcium stearate and (10) tribasic lead sulphate, cetyl alcohol and stearyl alcohol; and diisopropyl peroxydicarbonate, hydrolysed polyvinyl acetate and (4) dibasic lead phosphate and (5) dibasic lead phthalate.
Patent GB-1025749-A (GB)
Title: Method and apparatus for feeding sheets
IPC: G06K13/107
Filed: 1964-11-30
Abstract: 1,025,749. Feeding sheets. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 30, 1964 [Dec. 23, 1963], No. 48525/64. Heading B6B. In apparatus for feeding a record card or sheet, the card or sheet can be held away from a moving driving surface by directing an air stream between them. As applied to the separation of record cards 18 from a hopper 10 and feeding them past a processing station, the driving surface comprises a roll 30 almost totally enclosed in a casing 14 which is connected to a source of vacuum. The roll 30 is driven by a motor and comprises several spaced driving portions 62, Fig. 2 (not shown), carried by a series of discs which are apertured to equalize the suction pressure in regions 64 between the portions 62. The suction in the casing 14 and the atmospheric pressure acting on the cards 18, urge the foremost card towards the roll 30, but the card is held away from the roll by a high velocity stream of air, from a control device 22, directed between the roll and the card. The device 22, Fig. 7 (not shown) comprises a hollow elongated casing to which compressed air is supplied, and houses an electromagnetic device 36 which includes an arm 44 connected to a slider valve 34 controlling nozzles 38. When the device 36 is energized by a signal from a control curcuit, Fig. 4 (not shown), the valve 34 closes the nozzles 38, and a card 18 is fed from the hopper 10 and delivered through an opening on the opposite side of the casing 14. A reversely driven roll 31 prevents more than one card being separated, and air blasts from a device 33 assist separation. A series of shoes 35 having spring-biased portions keep the cards in engagement with the roll 30. The control circuit for the air blast device 22 is arranged so that cards can be fed one at a time in response to an external signal, e.g. from an associated data processing system, or so that cards can be fed continuously at a selected rate, or so that cards can be fed continuously with a predetermined spacing between cards.
Patent GB-1009548-A (GB)
Title: Improvements in or relating to time-base circuit arrangements
Inventor: MACKELLAR JOHN CAMPBELL
IPC: H03K4/84
Filed: 1962-12-28
Abstract: 1,009,548. Converting. MULLARD Ltd. Aug. 14, 1963 [Dec. 28, 1962], No. 48829/62. Heading H2F. [Also in Division H3] A circuit producing a saw-tooth current in a load and an E.H.T. voltage comprises a transistor connected across supply rails in series with the load and a rectifier connected across the rails in series with an inductor which inductor is connected to the same rail as the transistor, the junction of the rectifier and capacitor being A.C. coupled to the junction of the load and transistor. At the beginning of the scan a pulse from the input transformer P causes transistor T1 to conduct and to saturate so that the supply voltage is applied to scanning coils Ly and a linear increase in current takes place. At the same time a previously charged capacitor C1 discharges resonantly through T1 and L1. Towards the end of the scan Cl becomes discharged and is charged with opposite polarity from L1 until the point Q becomes more negative than the negative supply. The input pulse at P now terminates applying cutoff potential to the base of Tl and renders a chryistor D1 conducting. Hole storage maintains T1 conducting so that the scan continues but the current in Tl is rapidly reduced to zero by a quarter of a cycle of oscillation occurring in the circuit L2, Cl, T. Thereafter the energy in the scanning coils discharges resonantly into Cl. After one quarter of a cycle the current reverses and, when the storage charge in the chryistor has been removed, it reverts to its high voltage condition again. During this time transistor Tl is again rendered conducting, the first part of the scan before D1 switches off being produced by reverse conduction in the transistor T1 An E.H.T. voltage can be derived from a transformer connected across the scanning coil. Such a transformer Lp (Fig. 9) permits the addition of a capacitor Cs to remove the D.C. current from the scanning coil and to produce an S-shape to the waveform. A further transformer winding Ls can be provided to prevent saturation of the core. In Fig. 2 (not shown), the circuit Dl, L2 is replaced by a diode which may be of the PNPN-type. Specification 1,009,449 is referred to.
Patent GB-1360683-A (GB)
Title: Support structure for attachment to a pallet
IPC: B65D19/12
Filed: 1972-09-06
Abstract: 1360683 Load handling pallets GASCOIGNE GUSH & DENT (INDUSTRIAL) Ltd 6 Sept 1972 [20 Oct 1971] 48830/71 Heading B8H A pallet converter comprises a pair of end frames 10, 11 with corner posts 14 each with an arm 19 pivotally mounted at the lower end thereof to engage a bearer of the pallet and a pair of side frames 12, 13 also with corner posts 23 which when mounted on the pallet retain the arm 19 in its pallet engaging position. The posts 14 are each provided with a U-shaped bracket 22 to receive the adjacent post of a side frame and an L-shaped bracket 18 to bear on a platform 28 secured to the end post of a side frame, when the pallet is stacked on a similar pallet. The end posts 23 are each provided with a tube 27 to engage the upper end of an adjacent post 14 of an end frame.
Patent GB-1125974-A (GB)
Title: Improvements in or relating to pipelines for conveying materials
Inventor: WALLIS NEIL RUDOLPH
IPC: B05B5/16
Filed: 1965-11-18
Abstract: 1,125,974. Reciprocating conveyers. AEROCOAT S.A. 17 Nov., 1966 [18 Nov., 1965], No. 48966/65. Heading B8A. [Also in Divisions B1, B2, F1 and H2] A flexible pipe 1 has a flexible agitator 2 extending therethrough and given an axial or rotary reciprocating motion. As described both the pipe and agitator are of synthetic resin material; the agitator comprises flat portions successively at right-angles to one another and is attached to a member 4 which is reciprocated in a housing 3 by solenoids 9 and 10 energized by two anti-phase alternating currents or by interrupted current; or by a single solenoid with spring return. There may be a member 4 at one or both ends or in the middle of the agitator which may have wedge-shaped (e.g. frustoconical) portions to produce a pumping action. The apparatus may be used for supplying a metallic paint to an electrostatic sprayer, the agitator preventing alignment of the metallic particles to form a continuous conducting path with consequent reduction of potential of the atomizing head.
Patent GB-1470196-A (GB)
Title: Contact packing
IPC: B01J19/30
Filed: 1974-11-13
Abstract: 1470196 Contact packing material COOLING DEVELOPMENTS Ltd 9 Oct 1975 [13 Nov 1974] 49181/74 Heading B1R [Also in Divisions B5 and Dl] A cellular material useful as contact packing comprises a plurality of cells formed in a three-dimensional integral array wherein the side walls of the cells lie in parallel planes which are perpendicular to the general plane of the array, the opposite side walls of each cell in a longitudinal direction having an intermediate point of inflexion and the opposite walls of each cell in a transverse direction having a thickness equal to the sum of the thickness of each portion of the longitudinal side walls about the point of inflexion. The sheet material is preferably polyvinyl chloride.
Patent GB-1454098-A (GB)
Title: Method of storing goods
IPC: B65G1/04
Filed: 1973-10-24
Abstract: 1454098 Storage systems PIANELLI & TRAVERSA SNC 24 Oct 1973 [26 Oct 1972] 49478/73 Heading A4T A warehouse has a storage system comprising parallel rows of racks 10 spaced by passageways 11 each row consisting of vertical columns of compartments which open at their sides facing the passageways, are directly opposed across the passageways, have base supports 22 at the same respective levels and base support extensions 22a, 22b projecting into the passageways. Goods are stored in the warehouse by operating a mobile stacking device 15 to discharge containers 20 of goods laterally into the compartments to lie clear of the extensions 22a, 22b, and then operating the stacking device 15 to fill each passageway with containers 20a by discharging the containers so that they extend across the passageway and rest on opposed extensions 22a, 22b. The device 15 may be controlled by a driver or be automatic in which case it has a guide 14 and comprises a gantry 16 upon which a raisable platform 17 and forks 19 are provided.
Patent GB-1543392-A (GB)
Title: Sliding wall panel arrangements
IPC: E05D15/06
Filed: 1976-11-29
Abstract: A partition wall for wet chambers, particularly for bathrooms or stall showers with several wall panels which are slidable either with each other or with respect to each other with each wall panel suspended in an upper guide rail with sliding or roller guides and with the lower guide ledges of the panels guided in a lower closed guide member, shaped with step-like guide rails on top of each other. In a preferred form the upper suspension of each wall panel is positioned outside the line of the center of gravity of the wall panel.
Patent GB-1369104-A (GB)
Title: Method and apparatus for the detection of damage to an enamel layer
IPC: G01N27/20
Filed: 1972-10-27
Abstract: 1369104 Detecting flaws electrolytically PFAUDLER-WERKE A G 27 Oct 1972 [29 Oct 1971] 49759/72 Heading G1N The invention relates to the detection of damage to the corrosion-preventing enamal lining of an iron container or pipe, including damage to repairs using inert metal coatings e.g. tantalum, or graphite. Instead of applying an external potential as in Specification 1228561, the damage is detected by the electrolytic potential between the iron container and a reference electrode immersed in the liquid in the container. The reference electrode may be a glass electrode or an Ag/AgCl electrode. A rugged Ag/AgCl electrode somewhat similar to that described in Specification 1304117, is illustrated in Fig.2. An Ag/AgCl patch 9 is mounted on an enamelled metal rod 6, and an "electrolytic diaphragm" 11 is enamelled integrally with the enamelled metal container 7. (The electrode is shown connected through voltmeter 5 to the boiler steel vessel 2.)
Patent GB-1513599-A (GB)
Title: Process for treating teeth
IPC: A61C19/00
Filed: 1976-12-02
Abstract: 1513599 Removing occlusion contact points S HANEL 2 Dec 1976 [5 Dec 1975] 50283/76 Heading A5K Micro-spot occlusion contact points are eliminated by causing the patient to bite on a test strip which is coated with U.V. luminescent material, whereby the material is transferred to the contact points, and thereafter illuminating the teeth with U.V. light whereby the occlusal points are shown up for subsequent grinding.
Patent GB-1183229-A (GB)
Title: Improvements in or relating to Control Circuits for Alarm Devices
IPC: G08B17/107
Filed: 1967-11-06
Abstract: 1,183,229. Fire alarms; lamp failure alarms. PYROTECTOR Inc. 6 Nov., 1967 [7 Nov., 1966], No. 50418/67. Headings G4F and G4N. In an alarm system, a relay R1 is normally energized by half cycles of an A.C. supply, a capacitor F1 supplying current during the missing half cycles; means are provided responsive to failure of a component in the system to inhibit the current from the capacitor F1 so that the relay emits an audible signal. As shown in Fig. 3, relay R1 is normally energized by A.C. supply E, half-wave rectified at D2, the current during the missing half cycles being supplied by capacitor F1. Light from a lamp 14 in a labyrinth (Fig. 1, not shown) is reflected by smoke on to a CdS cell C1, reducing its resistance and allowing a neon tube B1 to strike, illuminating a photo-resistive cell C2 which connects an opposing rectifier D1 to the relay R1; capacitor F1 by-passes the non-rectified full-wave current across the relay R1 so that it becomes de-energized, initiating an alarm A. Supply voltage compensation.-The standing voltage across the photo-resistive cell C1. is is stabilized by neon tubes B2, B3. Neon tubes B4, B5 are connected to the lower end of the neon tube B1 so as to compensate for the change insensitivity of the circuit due to variation in brightness of the main lamp 14 in the event of supply voltage fluctuation. Lamp failure alarm.-Failure of the main lamp 14 results in photo-resistive cell C3 becoming high resistance so that capacitor F1 becomes ineffective, hence relay R1 will chatter due to the unsmoothed half-wave rectified supply.
Patent GB-1206935-A (GB)
Title: Transfer gear box
Inventor: KING ERIC DORIAN
IPC: F16H37/00
Filed: 1966-11-14
Abstract: 1,206,935. Driving front and rear wheels. WINGET Ltd. 14 Feb., 1968 [14 Nov., 1966], No. 50927/66. Heading B7H. A transfer gear-box for a wheeled vehicle is adapted to receive auxiliary and main rotary input drives 3, 14 from a gear-box and transfers them by two gear trains 6, 10, 11, 12 and 15, 16B, 16C, 17 respectively to an auxiliary output drive 13 and to main and forward output drives 18, 19 adapted to drive rear and forward wheels of a vehicle, the axes of the input and output drives being vertically offset from one another and a clutch mechanism 20 being disposed between the main and forward drives. The clutch mechanism 20 includes a dog clutch controlled by a lever 22 and the distance between the output axes is preferably the same as the distance between the input axes. The hollow shaft 4 driven by the auxiliary input shaft 3 carries an internally splined sleeve 8 to provide a second auxiliary output drive and a gear 7 which drives a lubricant pump 25. The transfer gear-box may be attached directly to a rear axle housing of a tractor or the main output shaft 18 may be connected to a separate rear axle casing by a flexible transmission shaft.
Patent GB-1107080-A (GB)
Title: Keyboard
IPC: B41J/
Filed: 1966-11-15
Abstract: 1,107,080. Typewriters etc. FRIDEN Inc. 15 Nov., 1966 [3 Jan., 1966], No. 51220/66. Heading B6F. Keyboard; permutation arrangements.--A keyboard with a plurality of keys 16 selectively operates, in various combinations according to the key depressed, a series of photo-electric cells 25, by means of apertures in card extensions 18 on each key stem. With no key depressed each extension 18 allows passage of light to pass through the lower apertures or channels 19 but selectively the light is interrupted when a key is depressed according to whether the aperture extends to the upper portion of the extension 18. Key construction and springing.-The key buttons 16 are mounted on square stems 15 and are urged, upwardly by fliexble stem boots 17 comprising a hollow elastic cylindrical part and a tapering part. The narrowest part of the taper is thicker than the part which joins with the cylindrical part so that after a certain depression of a key there is a " breakaway feel " which enables high operating speeds. In a modification. Fig. 6 (not shown), the key stems 15 and the extensions 18 are mounted on arms (36) resiliently projecting from a support shaft (35). Key inter-lock.-If more than one key is depressed at once the resultant light paths do not represent any one character/single key and so the signals on the photo-electric cells are rejected. Alternatively a mechanical interlock may be provided.
Patent GB-1275808-A (GB)
Title: Process and apparatus for the distillative purification of acetone
IPC: C07C45/35
Filed: 1969-10-20
Abstract: 1275808 Acetone purification FARBWERKE HOECHST AG 20 Oct 1969 [18 Oct 1968] 51374/69 Heading C2C A process for the distillative purification of crude acetone obtained by the direct oxidation of propylene with oxygen or an oxygen-containing gas in the presence of a catalyst solution containing a compound of a noble metal of Group VIII of the Mendeleef Periodic Table and a halide of a heavy metal occurring in at least two valence states, the crude acetone having been separated from by-products having a boiling point below that of acetone, comprises distilling the crude acetone and withdrawing acetone from the distillation column at a position situated at from 4 to 10 theoretical plates below the head of the column while maintaining the ratio of product to reflux to the top of the column at approximately 1:7, recycling from 95 to 99À5% of the overhead product, after cooling, to the top of the column and simultaneously withdrawing by-products having boiling points above that of acetone from the column at a position situated at from 1 to 7 theoretical plates above the point of inlet of crude acetone. The high-boiling by-products may be subsequently distilled in a second column, the ratio of reflux to discharge being in the range of from 5 : 1 to 0À5 : 1 and the acetone distilled off is recycled to the supply of crude acetone optionally together with the remainder of the overhead product from the main distillation column. The Specification also describes suitable apparatus for carrying out the above process.
Patent GB-1187907-A (GB)
Title: Cage for Experimental Animals.
IPC: A01K1/03
Filed: 1968-10-31
Abstract: 1,187,907. Cages. ALFRED HEINKEL & CO. K.G. 31 Oct., 1968 [15 May, 1968], No. 51584/68. Heading AIM. A cage for experimental animals has a rear wall 6 which is displaceable forwardly on guides 7 by handles 5 to confine animals against the front wall or force them into a transport cage 4 fitted to an opening in the front wall exposed by moving upwardly a centre section of the front wall. The three sections of the front wall are of grating form, each fronted by a transparent plastics pane which are movable vertically. The top of the cage has an exposable opening in which a food dispensing device may be fitted, said device, Figs. 4 and 5 (not shown), comprising a hopper (19) with a rotatable slotted drum (17) mounted below its outlet for dispensing a predetermined quantity of food, and a transparent viewing window. The transport cage has a front wall 9 which may be dropped, and a rear wall 10 which may be displaced in drawer like fashion by means of a handle 10<SP>1</SP> to force animals to leave the cage and a transparent roof panel 11, and is of a size to be accommodated in an associated anaesthetising cage. Below the grating floor of the main cage there is a droppings trough 1 lined with a removable bag.
Patent GB-1271684-A (GB)
Title: Pipetting apparatus
Inventor: ROACH WILLIAM JOHN
IPC: A47G23/02
Filed: 1969-04-17
Abstract: 1,271,684. Pipette with disposable tip. OXFORD LABORATORIES. 17 April, 1969 [16 Aug., 1968], No. 51601/71. Divided out of 1,271,683. Heading B1X. [Also in Division F1] The disclosure is identical with that of the Specification 1,271,683 but the claims are different.
Patent GB-1117139-A (GB)
Title: Process for the manufacture of shaped articles from polyethylene terephthalate
IPC: C08L67/02
Filed: 1966-11-18
Abstract: A moulding composition comprises polyethylene terephthalate, 0.01-5% by wt. (based on the polymer) of a liquid which promotes crystallization and 0.001-0.5% by wt. (based on the polymer) of an undissolved solid substance having an average particle size of less than 3 microns; the composition having a relative viscosity of at least 1.70 (measured in 1% by wt. solution in metacresol). The crystallization promoting liquid may be an aromatic, aliphatic or mixed ketone or amine, a halogenated alkane, dioxan, acrylonitrile, nitromethane, nitroethane, tetrahydronaphthalene or benzyl alcohol. The solid substance may be an oxide of a metal having an atomic number less than 23, a metal powder, a salt of an alkaline earth metal, graphite, glass powder, calcined gypsum or talc.
Patent GB-1204323-A (GB)
Title: Polyolefines
Inventor: BRIGGS PETER JAMES
IPC: C09C1/36
Filed: 1966-11-21
Abstract: 1,204,323. Coated TiO 2  pigments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 3 Nov., 1967 [21 Nov., 1966], No. 52023/66. Heading ClN. [Also in Division C3] Titanium dioxide pigments may be coated with organo-silicon compounds by milling or refluxing with an organic solvent. In examples anatase titanium dioxide is coated with (1) octamethyl-cyclotetrasiloxane by milling with glass beads, for 2 hours, and with (2) octamethylcyclotetrasiloxane and (3) dimethylchlorosilane by refluxing with xylene, for 2 hours, filtering and drying in vacuo at 50‹ C.