baber/WOPTO huggingface dataset:
Patent GB-261457-A (GB)
Title: Improvements in telephone systems
IPC: H04M3/523
Filed: 1925-08-10
Abstract: 261,457. Standard Telephones & Cables, Ltd., (formerly Western Electric Co., Ltd.) (Deakin, G., and Stevens, C. E.). Aug. 10, 1925. Semi-automatic exchange systems. - In a manual exchange in which incoming trunks from an automatic exchange are distributed over a number of operators' positions provided with call indicators, means are provided by which, when a number of operators have left their positions, the calls may be handled by the operator at a neighbouring concentration position. Three positions of the kind described in Specification 261,456 are shown, each with three register-sets, the central position being provided with keys LSK, RS'K and relays Lcr, Rcr by which the controls of the adjacent positions are transferred to the central position. The availability of the trunks incoming to a position is dependent on relays Cpr, Pdr, and these relays are interconnected in such a way that the trunks of all three positions are available when the jack TJ is plugged into at the central position, and are rendered unavailable when two calls come in simultaneously or when three register-sets are in use. This last feature is effected by connections over sequence switch contacts of the registersets, which short-circuit relay Cpr at the central position. A signal may be given to a supervisor when all the trunks are in use or are disabled, as in Specification 261,075. In order to carry out the busy test with the plugs at the adjacent positions, the tips are brought into connection with the operators' telephone at the central position. Means may be provided for connecting up the calls to the call indicators in the order of arrival by means of priority tests, as described in Specification 261,456.
Patent GB-504875-A (GB)
Title: Improvements in or relating to injection nozzles for internal combustion engines
IPC: F02M61/08
Filed: 1938-07-06
Abstract: 504,875. Fluid injectors. DAIMLERBENZ AKT.-GES. July 6, 1938, No. 20058. Convention date, July 31, 1937. [Class 7 (iii)] In a fuel or water injector having a valve 8 opened outwardly by fluid pressure, the valve stem 9 passes freely through a bore 4 in the nozzle body 1 and one end of a spring 12 abuts against an annular wall 5 surrounding a port 6 on which the valve seats. The other end of the spring may engage a slidable sleeve 20 which is formed with notches 21 for the passage of fluid.
Patent GB-884631-A (GB)
Title: Epoxy resin coating solutions
IPC: C08L63/00
Filed: 1959-06-11
Abstract: 884,631. Bituminous/epoxy-resin compositions. CIBA Ltd. June 11, 1959 [June 11, 1958], No. 20105/59. Class 22. [Also in Group IV(a)] Coating compositions comprise (i) an epoxy resin, (ii) a coal tar pitch having a ring-and-ball softening point of at least 60C., and/or bitumen having an R. & B. softening point of at least 45C., (iii) a hardener for (i), (iv) a chlorinated hydrocarbon and/or a ketone, and, if desired, (v) another solvent. Specified compounds are- (i) a long list of epoxy hydrocarbons and esters, glycidyl amines, esters and ethers of alcohols, phenols and novolacs, and epoxy resins which have been partially esterified with drying oil fatty, sebacic, phthalic, or citric acids ; the polyglycidyl ether or bisphenol A is used in the examples. (ii) coal tar pitch and distillation, blown, extract, and cracking bitumens. (iii) a long list of amines and amides, urea-, aniline-, melamine-, and phenol-formaldehyde resins, polyamides, polyaminostyrenes, isocyanates, isothiocyanates, polyhydric phenols, quinone, Al aceto acetic ester, Friedel Crafts catalysts, phosphoric acids, and dicarboxylic acid anhydrides ; urea-formaldehyde resins, diethylene triamine and ethylene diamine are used in the examples. (iv) dichlorobenzenes, trichlorethylene, and perchlorethylene; methyl ethyl and methyl isobutyl ketones, cyclo hexanone, and diacetone alcohol. (v) toluene, xylene, and anthracene heavy oil. Optional additives specified are colophony, silicic acid, kaolin, and bentonite. Specification 819,107 is referred to.
Patent GB-1334608-A (GB)
Title: Apparatus for manufacturing reinforced concrete spacers
IPC: B28B23/00
Filed: 1971-04-19
Abstract: 1334608 Machine for inserting wire ties in reinforcement spacers A MOLENAAR [trading as MOLENAARS BETONINDUSTRIE] 19 April 1971 [27 Jan 1970] 20161/71 Heading E1W A machine for inserting wire ties in concrete reinforcement spacers 19 cuts, bands and inserts two L-shaped ties into each spacer as it is passed on a conveyor belt past the machine. The machine has a frame 1 on which a carriage 7 having an upper clamp 14 and a lower clamp 16 for each pair of wires is vertically movable. A further, intermediate clamp 17 and a cutter 22 are mounted on the frame, the cutter 22 being positioned to enter a recess in the lower clamp 16 on the carriage 7, when in its lowest position. The wires are pulled down by carriage when clamped at 14 and 16, and then gripped by clamp 17 whilst carriage is raised. The cutter 22 has an angled blade 23 which simultaneously cuts the lowermost wires and bands the next portions of wire to an L-shape. The spacers 19 are in moulds on the conveyor, and a number of pairs of wires may be dealt with by each carriage, a number of clamps 14 and 16 being mounted on each.
Patent GB-817625-A (GB)
Title: A process for modifying polyols
IPC: C08F8/42
Filed: 1957-06-26
Abstract: A polyol or partially esterified polyol and a completely condensed siloxane of the average general formula <FORM:0817625/IV (a)/1> where R is a monovalent hydrocarbon radical and n has an average value from 0.9 to 3.0, are heated to at least 200 DEG  C. in the presence of an alkali metal hydroxide until a homogeneous product is obtained.  The siloxanes specified contain Si-bonded alkyl, cycloaliphatic, alkenyl, aryl or aralkyl radicals.  Polyols specified are glycerine, pentaerythritol, trimethylolpropane and trimethylolethane, and their partially esterified products with acetic, 2-ethyl-hexoic, caproic, stearic, 12-hydroxystearic, p-tertiary butylbenzoic, benzoic, oleic, laurolic, ricinoleic, linoleic, linolenic, eleostearic, licanic and clupanodonic acids. If desired the polyols may be esterified by transesterification using esters of the above acids and the esterification may be effected in the presence or absence of the siloxane.  The alkali metal hydroxide, e.g. NaOH, KOH, LiOH or CsOH, is used in amounts e.g. of 0.001 to 10 per cent by weight of the reactants.  Reaction products containing an excess of polyol OH groups may be processed into alkyd resins by reaction with acids, e.g. ortho-, iso- and tere-phthalic, diphenic, stilbenedicarboxylic, tolanedicarboxylic, dibenzyldicarboxylic, adipic, succinic, sebacic, fumaric and azelaic acids or their anhydrides, acid chlorides or lower alkyl esters.  In examples: (1) glycerine was esterified with linseed oil in the presence of trimethylsiloxy end-blocked dimethylpolysiloxane by heating in the presence of Ca(OH)2, and the resulting ester was then reacted with the siloxane by adding KOH and heating; (2) the same ester was similarly reacted with monophenylsilsesquioxane and the product was then reacted with phthalic anhydride; or (5) isophthalic acid or dimethylterephthalate; (3) trimethylolethane was reacted with monocyclohexylsiloxane in the presence of NaOH and the resulting product was then reacted with phthalic and maleic anhydrides: (4) pentaerythritol, glycerine and 2-ethylhexoic acid were reacted in the presence of Ca(OH)2 and the product was then reacted with a copolymer of phenylvinyl-, phenylethyl-, monomethyl-, monotolyl- and monoxenyl-siloxanes in the presence of C5OH.  Uses.-As an oil finish for wood surfaces or in making varnishes, paints and other coating materials.
Patent GB-1121934-A (GB)
Title: Sterile venoclysis apparatus and recipient set for use therewith
IPC: A61M5/162
Filed: 1966-05-06
Abstract: 1,121,934. Venoclysis apparatus. ABBOTT LABORATORIES. 6 May, 1966 [11 June, 1965], No. 20260/66. Heading A5R. [Also in Division B8] The cap 22 covering a port of a venoclysis fluid container is fractured by twisting a cover 34 having at one end a socket 36 which fits over a cannula 24 of a recipient set and at the other end a recess 40 which mates with head 22e of cap 22. After removal of the fractured portion of the cap and cover 34, cannula 24 may be forced through the port tube (44) (Fig. 6) to puncture the wall of the container thus permitting fluid to flow from the container into the vein of a patient via sight chamber 26, tubing 28, and needle 32. Cannula cover 34 may be provided with lugs 38, 38a to aid twisting. In modifications (Figs. 9 and 10) the cannula cover is provided with an extension, instead of a recess, which engages with an appropriately formed head on the post cap such that when torque or lifting action is applied fracture occurs enabling the port cap to be removed.
Patent GB-816029-A (GB)
Title: Improvements in or relating to textile bobbin holders
IPC: D01H1/18
Filed: 1957-06-27
Abstract: 816,029. Bobbin-holders. BAHNSON CO. June 27, 1957 [June 28, 1956], No. 20302/57. Class 120(2) A device for releasably holding a textile bobbin with an internal bore comprises jaw-members urged apart by resilient means which are removable for replacement by means of different resilience. In Fig. 1 two jaw-members are provided in the form of the legs of a U-member urged apart by a U-shaped spring 5; the spring has an end 7 shaped to engage one of the legs to limit its outward movement and is held in place by the engagement of a tongue on one of the members with an aperture in the spring. The holder is carried in a slot in the rail 12 of a creel by the support shown in Fig. 4 which is made of spring steel, the flanges 15g, 15f and 15e, 15i engaging above and below the rail. A cup-shaped aperture 15b in the support is large enough to allow a headed pin 17 to swivel in a bearing-member 16.
Patent GB-1271316-A (GB)
Title: An improved method and apparatus for producing combed sliver
Inventor: NAKAMURA MINORU
IPC: D01G19/14
Filed: 1969-04-21
Abstract: 1,271,316. Condensing sliver from combing machines. OSAKA KIKO K.K. and CHUWA WOOL INDUSTRY CO. Ltd. 21 April, 1969, No. 20355/69. Heading D1N. A combed web is diverted towards a sliver condenser so that the combed fibres thereof are turned out of an initial longitudinal direction of movement through an angle which becomes progressively more acute from one side of the web to the other. The leading ends of the combed fibres which were in substantial alignment after passing through the comber are displaced by the condenser so that they are substantially uniformly distributed lengthwise of the sliver. One condensed sliver can pass through a storage device, crimping means and drafting apparatus. A plurality of combed webs can be condensed separately and drafted, or a plurality of superimposed webs can be condensed simultaneously and then drafted.
Patent GB-936013-A (GB)
Title: Improvements relating to gas or air flow switches
Inventor: SHAW BRIAN
IPC: H01H35/40
Filed: 1961-06-06
Abstract: 936,013. Fluid actuation of switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 18, 1962 [June 6, 1961], No. 20387/61. Class 38 (3). [Also in Group XXIX] A gas or air flow switch comprises a body 2 provided with a semi-cylindrical slot 5 intermediate its ends, an air flow passage 3 intersecting the slot, a blade 6 fixed to a spindle 7 rotatably mounted on the body to swing in the slot, means for counterbalancing the torque produced at spindle 7 by pressure drop across blade 6 when air flows through passage 3, and a microswitch 12 actuated by rotation of spindle 7. The body 2 is mounted in an air-tight cylindrical casing 1. The torque-balancing means includes a radial arm 10 fixed on one end of spindle 7 and with a counterbalance weight 11 on the arm. Alternatively, a spring counterbalance is used.
Patent GB-1298925-A (GB)
Title: Radial sealing rings
IPC: F16J15/3212
Filed: 1970-04-29
Abstract: 1298925 Shaft seals CARL FREUDENBERG 29 April 1970 [29 April 1969] 20533/70 Heading F2B Alip-type shaft seal comprises first and second annular recesses 7, 10, a helical garter spring 5 in the first recess, and an abutment surface 6 or series of surfaces for returning the spring in the event of it being dislodged, the distance y being less than or equal to the diameter F of a turn of the spring.
Patent GB-1221814-A (GB)
Title: Improvements relating to roll stands
IPC: B21B31/32
Filed: 1968-05-01
Abstract: 1,221,814. Rolling mills. ACHENBACH SOHNE G.m.b.H. 1 May, 1968 [27 June, 1967], No. 20558/68. Heading B3M. A roll stand incorporates roll chocks 3 and 4 which are urged apart by cylinder units 11 and 12, the hydraulic pressure in the units being controlled in response to the output of a load cell 17 located between the chock 3 and a prestressing screwdown 20 in order to maintain the prestressing force constant and hence keep the roll gap constant. Each unit 11 or 12 is provided with a cylinder 22 and a co-operating flanged piston 21 which limits movement of the piston into the cylinder. The cylinder is either movable vertically by a wedge 23, or is fixed in a chock 4. In the latter case, the piston 13 or 14 engages an adjustable spindle in a chock 3.
Patent GB-583404-A (GB)
Title: Improvements in plating plant
IPC: C25D17/08
Filed: 1944-10-24
Abstract: 583,404. Work-holders for electroplating. NEALE, C. F., and FISCHER, A. P. Oct. 24, 1944, No. 20594. [Class 41] Wheel rims or other annular units are supported horizontally in a plating bath by forked conductors a<2>, Fig. 3, connected by bolts a<3> to vertical conductors a<1> extending through insulating tubes a. The forks are enclosed in insulation a<4> except at the tips which engage flanges on the rims. Each conductor a' is provided with a number of superimposed forks. A number of the tubes a are mounted in a ring surrounding the rims b, Fig. 1, by split resilient bands c fastened at c<1>. The cage so formed is supported by conductors connected to the conductors a<1> and to a rotatable spider. The anode is arranged to extend axially upward through the rims.
Patent GB-816953-A (GB)
Title: Controls for supercharged internal combustion engines
IPC: F02D23/00
Filed: 1955-07-18
Abstract: 816,953. Speed governors. BUCHI, A. J. July 18, 1955 [Aug. 12, 1954], No. 20680/55. Class 57. A control for a supercharged internal-combustion engine comprises a manually-adjustable throttle 1<SP>1</SP>, Fig. 1, in a duct 3 connected with the supercharger 8 for selecting a predetermined engine speed, variations in the pressure of the supercharge operating a pneumatic device 10 regulating the supply of fuel and a device 5 regulating the flow of supercharged air whereby the selected speed is maintained with variations in engine load. The device 5 is connected by a linkage 15<SP>1</SP> to a valve 20<SP>1</SP> mounted on the opposite side of a chordwise-extending wall 18 from the throttle 1<SP>1</SP> which is connected to a pedal control 41 or a manually-adjusted linkage. The wall 18 subdivides a venturi section 2<SP>1</SP> and the part containing the valve 1<SP>1</SP> is connected by a pipe 12 to one side of a diaphragm in the device 10, the other side of the diaphragm being connected by a pipe 11 to a non-divided duct 17. The pressure in the latter is also communicated by a pipe 19 to the device 5 which is prevented from hunting by a dashpot 7<SP>1</SP>. Fig. 4 shows the control applied to the induction pipe 3<SP>111</SP> of a supercharged engine supplied with fuel from a carburetter. A conical throttle valve 1<SP>111</SP> may be adjusted by a pedal 4<SP>111</SP> through a lever 21<SP>111</SP>, a gear-wheel R, and a rack Z. The lever 21<SP>111</SP> may also be moved relatively to the pedal 4<SP>111</SP> by a diaphragm mounted in a casing 5<SP>111</SP> and connected by a conduit 19<SP>111</SP> to the supercharger outlet 17. The fuel supply to the carburetter is adjusted by a needle valve 23<SP>111</SP> which is controlled by a linkage 22<SP>111</SP> operated by a pneumatic device 10<SP>111</SP> connected by a conduit 12<SP>111</SP> to the induction pipe 3<SP>111</SP>. Stops 24, 25 limit the movement of the pedal 4<SP>111</SP>. In further construction, a butterfly-type of throttle valve mounted in the discharge duct from a supercharger is controlled by a linkage similar to that shown at 4<SP>111</SP>, 5<SP>111</SP> and 21<SP>111</SP> in Fig. 4, while the fuel supply is controlled by a device similar to that shown at 10 in Fig. 1.
Patent GB-711116-A (GB)
Title: Improvements in or relating to amplifier circuits
IPC: H03F1/36
Filed: 1952-08-18
Abstract: 711,116. Valve amplifying circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 18, 1952 [Aug. 21, 1951], No. 20704/52. Class 40 (6) In an amplifier circuit wherein negative feedback is taken from the cathode circuit of the final valve of an amplifier chain and is applied to an earlier valve in the chain, the effect of high-frequency currents flowing through the gridcathode capacitance of the final valve is neutralized by means of a circuit connected between the anode of the preceding valve and earth and comprising an impedance in series with an inductance, the inductance being tightly coupled to a further inductance in the cathode circuit of the final valve. In the circuit shown, a voltage et is taken from the cathode circuit of the valve 2 and is applied as negative feedback to one of the preceding valves. Due to the grid-cathode capacitance of the valve 2 (shown as element 5) the feedback potential developed does not correspond exactly with that developed across the resistor 3 in the anode circuit of the valve. To compensate for this components 8, 9 and 11 are connected in series with an inductance 6, the inductance 6 being coupled to an inductance 7 in the cathode circuit of the valve 2. The inductance 6 comprises more turns than the inductance 7 the turns-ratio n being preferably of the order of 2 to 4. The component 8 is a condenser whose capacity is 1/n times that of the interelectrode capacitance 5, the component 9 is a resistor having n-times the resistance of the resistor 10 in the cathode circuit of the valve 2 and the component 11 is a resistor designed to damp any resonance produced by the stray inductance of the coupled coils 6 and 7.
Patent GB-903731-A (GB)
Title: Thermoelectric members
IPC: H01L35/18
Filed: 1960-06-14
Abstract: 903,731. Thermo-electric devices. WESTINGHOUSE ELECTRIC CORPORATION. June 14, 1960 [June 15, 1959; Feb. 29, 1960], No. 20788/60. Class 37. [Also in Group II] A thermo-electric member is formed by hot pressing a powdered thermo -electric composition such as intermetallic compounds and oxides and simultaneously uniting the composition to at least one electric contact. The powder composition is formed either by mixing the constituent powders in stoichiometric proportions to form the intermetallic compound and sintering in Ar, He or N 2  at 400-525 C. or by melting the constituent under vacuum, e.g. at 900 C. and crushing the resulting casting. The thermo-electric materials specified are zinc or cadmium antimonide, indium arsenide-indium antimonide mixtures, germanium telluride, bismuth selenide, bismuth antimony telluride, lanthanum barium titanium oxide, germanium antimony telluride, sodium manganese telluride and manganese germanium telluride. Additives such as 1%-1% by weight of Sn, 0.1%-5% by weight Ag, A1 or Fe may be added to the constituent powders prior to the sintering or melting process. The powdered material at least minus-200 mesh is packed in a graphite die 21 with electric contact members 14 on the top and bottom of the powder fill and hot pressed at 450-520 C. at 1000-15,000 p.s.i. by plungers 24. The temperature of hot pressing should be 20-100 C. below the melting point of the thermo-electric material. The contact members may be steel, stainless steel, Cu or Ni clad steel, Ag, Cu clad A1 or Ag plated steel and the elements are then connected by an electrical conductor 32 to form a thermoelectric device (Fig. 4).
Patent GB-221793-A (GB)
Title: Improvements in packaging apparatus
IPC: B65B61/20
Filed: 1924-09-03
Abstract: 221,793. Anschell, S. C. Sept. 10, 1923, [Convention date]. Packeting confections &c. in receptacles. - Apparatus for facilitating the hand packeting of confections and novelties comprises a support for confeetions and means travelling above the support for continuously conveying a supply of different novelties past an operator so that he may reach novelties and confections with equal facility to insert different novelties in successive packages. A table 1 capable of accommodating a number of operators is provided with a portion 3, on which the filling and sealing of the packages are effected, a recessed portion 2, to which the confections are fed through shoots 5, and racks 4 to receive filled packages. The table legs 8 are extended upwards and provided' with brackets 7 supporting a shelf 11 for empty packets and a track 6 from which are suspended hangers 15 provided with rollers 16 to run on the track and with hooked lower ends to engage the hooked ends of plates 17 secured to containers 14 for the novelties. An endless chain 13 is secured to the hangers 15 and is carried by sprocket-wheels 12 at the ends of the table, one of the sprocketwheels being driven. Each container 14 carries a supply of novelties different from those of the other containers, and the containers move at such a speed, that an operator in filling packages and taking a novelty for each from the container 14 in front of bins places different novelties in successive packages.
Patent GB-799912-A (GB)
Title: Magnetic impulse record carriers
IPC: G11B5/716
Filed: 1956-07-06
Abstract: The magnetic coating on a magnetic impulse record carrier comprises in a non-magnetic binder, a magnetic iron oxide powder of which 2.5-4 atom per cent of iron are substituted by cobalt, and a magnetic iron oxide in which iron is the sole metal.  In making the mixed oxide, mixed hydroxides are precipitated by adding a solution of iron and cobalt sulphates to a solution of NaOH and NaClO, under nitrogen. The suspension is heated under nitrogen to 80 DEG  C. and mixed with a solution of NaNO3.  The precipitate is decanted, dried at 100 DEG C. and oxidized in air at 280 DEG  C.  The simple iron oxide is made by precipitating iron hydroxide by adding NaOH to a solution of FeSO4.  After the addition of iron scrap, the suspension is heated to 60 DEG  C. and air passed through.  The iron hydroxide filtrate is heated to 350 DEG  C. and converted into Fe2O3, and then reduced by gas to Fe3O4.  This is cooled to 200 DEG  C. in nitrogen and oxidized to Y-Fe2O3 at 200 DEG  C. in air.  Alternatively, the suspended hydroxide is converted to Fe3O4 by heating to 80 DEG  C. and adding NaNO3 and afterwards to Y-Fe2O3 by heating at 260 DEG  C. in air. Other starting salts may be the chlorides, nitrates or acetates of iron and cobalt, and the precipitating agent may be potassium or calcium hydroxide or ammonia.  Other oxidizing agents referred to are potassium and ammonium nitrates, sodium chlorate, potassium persulphate, hydrgoen peroxide and oxygen.  Methods of making the record carrier from the oxides are described (see Group XXXV).