baber/WOPTO huggingface dataset:
Patent GB-1292527-A (GB)
Title: Improved method of polymerization of aromatic vinyl hydrocarbons
IPC: C08F279/02
Filed: 1970-12-02
Abstract: 1292527 Graft polymers SOC CHIMIQUE DES CHARBONNAGES 2 Dec 1970 [2 Dec 1969] 57321/70 Heading C3G A method for the polymerization of aromatic vinyl hydrocarbons in the presence of an elastomer and one or more polymerization catalysts, comprises a pre-polymerization stage followed by a further polymerization stage, in which method, (a) the pre-polymerization is carried out in the presence of part or all of the polymerization catalysts and optionally together with an emulsifying agent with a speed of agitation not greater than that employed in the further polymerization stage, and in the presence of a quantity of water dispersed in the reactants and comprising 10-32%, preferably 20-30%, by weight of the reactants, and (b) the further polymerization stage is conducted with agitation in the presence of the polymerization catalyst or catalysts and in aqueous suspension, additional water and a suspension-stabilizing agent being added. The aromatic vinyl hydrocarbon is preferably styrene and the elastomer is preferably polybutadiene. The pre-polymerization is preferably carried out at a temperature or 80-94‹ C. The whole of the catalyst is advantageously added at the beginning of the pre-polymerization step. As such catalysts there may be employed conventional free radical initiators.
Patent GB-1113149-A (GB)
Title: A process for the production of ion exchangers based on crosslinked acrylate polymers
IPC: C08F8/00
Filed: 1966-12-22
Abstract: Cross-linked non-proliferous copolymers comprise in polymerized form an acrylic acid ester cross-linked by 2 to 20% by weight of a cross-linking agent which is an aliphatic or cycloaliphatic hydrocarbon containing two or more allyl or substituted allyl groups, which are defined as having the formula <FORM:1113149/C3/1> where the remaining valencies of the carbon atoms are satisfied by hydrogen, alkyl or other organic radicals.  The copolymers are obtained by copolymerising the monomers in the presence of a catalyst at 20 to 100 DEG  C.  An additional cross-linking agent such as divinyl benzene, trivinyl benzene or divinyl naphthalene may also be included, as may such comonomers as styrene, ethyl styrene or an ester of vinyl alcohol.  Cation or anion exchangers may be obtained by hydrolysing or aminolysing the copolymers.  Specified "llyl" comonomers are hexa - 1,5 - diene, 2 - methyl - , 2,5 - dimethyl -, 3,4 - diethyl -, and 2 - methyl - 5 - isopropyl - hexa - 1,5 - diene, hepta - 1,6 - diene, nona - 1,8 - diene, 1,2,4 - trivinylcyclohexane, 1,3 - divinylcyclohexane and 1,3 - divinyl cyclopentane. The Examples describe the preparation of bead polymers by polymerizing in the presence of diebenzyl peroxide, methyl cellulose, and water, optionally with white spirit or isooctane in addition and also bulk polymerizations in the presence of dibenzoyl peroxide, the resulting copolymers being hydrolysed with aqueous soda lye or aminolysed with N,N-dimethyl-1,3-propylene diamine.
Patent GB-1432500-A (GB)
IPC: B60G3/24
Filed: 1973-12-13
Abstract: 1432500 Independent rear suspensions DAIMLER-BENZ AG 13 Dec 1973 [23 Dec 1972] 57830/73 Heading B7D In an independent rear wheel suspension comprising a transverse control arm 10 rigidly connected to a wheel carrier 9 and pivotally connected to a sub-frame 3 resiliently mounted on the superstructure of the vehicle, and two generally longitudinal control arms 11, 12 pivotally connected to the carrier 9 at vertically spaced points 13, 14, the lower longitudinal aim 12, which extends forwardly from the carrier 9, is angled upwards and the transverse arm 10 is angled forwards so that their points 16, 17 of attachment to the sub-frame 3 define an oblique inclined axis 18 positioned to obtain starting and braking compensation and small camber variations. To minimize toe-in changes the upper arm 11 is arranged so that in side elevation it extends at angle to the perpendicular to a tangent which touches the path of travel the point 14 would describe about the axis 18 if the lower arm 12 was assumed to be rigidly attached to the carrier 9. If the point 17 is above the point 14 and below the point 16 as shown, the upper arm 11 is angled so that it passes through a plane containing the points 14, 16, 17 below the axis 18. A helical spring and concentric damper 21 are seated on the wheel carrier 9. In another embodiment, Fig. 4 (not shown), the upper longitudinal arm extends rearwardly from the wheel carrier, and the transverse arm incorporates a torsion bar or is made torsionally resilient and is arranged so that springing is provided by the torsional stresses induced therein.
Patent GB-1332460-A (GB)
Title: Process for the preparation of halogenated hydrocarbons
IPC: C07C23/10
Filed: 1970-12-07
Abstract: 1332460 Preparation of halogenated hydrocarbons SUN OIL CO 7 Dec 1970 [9 Dec 1969 (2) 19 Dec 1969 (2) 22 Dec 1969] 58007/70 Heading C2C Halogenated hydrocarbons are prepared by (a) forming a solution of (1) a hydrocarbon having 7 or more C atoms and (2) a C 4 -C 5  tertiary alkyl halide, e.g. tertiary butyl chloride in which the halogen is chlorine or bromine in molar ratio to the hydrocarbon at least 1 : 1 the solution being capable of dissolving and maintaining therein the aluminium trihalide hereinafter specified, (b) maintaining said solution at a temperature in the range of - 30‹ to 20‹ C. while admixing therewith and dissolving therein an aluminium trihalide in which the halogen is the same as that in said tertiary halide, the weight ratio of aluminium trihalide to the tertiary halide being sufficient to promote halogenation of said hydrocarbon; (c) maintaining the resulting solution within said temperature range and in homogeneous phase until at least substantial halogenation of said hydrocarbon has occurred; (d) and recovering from the reaction mixture a halogenated hydrocarbon product. Many examples are given including C 7 -C 30  branched alkanes, alkyl cyclohexanes, alkyl decahydro naphthalenes, polycyclic fused rings, perhydro aromatics, perhydro polyphenyls.
Patent GB-1206478-A (GB)
Title: Signal limiter-amplifier circuit arrangements
IPC: H03F3/213
Filed: 1967-12-21
Abstract: 1,206,478. Limiting amplifiers. R.C.A. CORPORATION. 21 Dec., 1967 [27 Dec., 1966], No. 58044/67. Heading H3T. A limiting amplifier comprises a transistor having collector and emitter resistors, the collector being directly coupled to the base of a second transistor which is connected as an emitter-follower and has a further resistor in its collector circuit, whereby input voltage swings of one polarity forward bias the base-collector junction of the second transistor and drive it into saturation, whereas voltage swings of the opposite polarity reduce the collector current of the first transistor and drive the second transistor into saturation. The limiting may be made symmetrical by appropriate choice of the resistor values. Fig. 6 shows portion of a TV intercarrier-sound amplifier using two stages as defined above, viz. transistors 216/218 and 232/234. The circuit is generally similar to that of Specification 1,127,801 and the initial stages differ only in the presence of resistors 224 and 240 which provide the above-described limiting function. These resistors may be replaced by one or more diodes with or without series resistors. The whole circuit within the dotted line may be formed as one integrated circuit. Transistors 308, 316 and 318 provide biasing voltages which are compensated for changes in temperature or supply voltages as described in Specification 1,206,479. Transistors 312 and 314 provide similarly stabilized collector potentials. The output from transistor 234 is applied to a further limiter 246/248 which is supplied from a higher potential than the earlier stages. The output of this limiter is taken to a discriminator transformer 254, ratio detector 264/266 (as in Specification 1,124,276) and A.F. amplifier 278-292, all these (except for the transformer) being on the same integrated circuit as the I.F. stages. The signal from transistor 292 is taken to an output stage 328 as shown, or alternatively transistor 292 may be a phase-splitter feeding a Class B output stage. Transistors 312, 314 and 316 may be replaced by diodes (Fig. 5, not shown).
Patent GB-1240745-A (GB)
Title: Valve operator
IPC: F16K31/163
Filed: 1969-12-01
Abstract: 1,240,745. Valves. BELL AEROSPACE CORP. 1 Dec., 1969 [25 April, 1969], No. 58484/69. Heading F2V. [Also in Division F1] A valve actuator has two substantially identical casing halves 10, 20 detachably secured together and each providing a bearing surface 14, 24 for an integrally cast lever means which is provided with a keyway 59 for engagement with a valve stem and two spaced arms 54, 55. Rollers on the ends of a pin 63 engage in the slots 56, 57 of the arms. The pin 63 is secured to a plunger 72, 71 which reciprocates in hydraulic cylinders 31, 41 secured in the casing apertures 17, 27 and provided with internal bearing surfaces for the plunger inwardly of the securing flanges 32, 42.
Patent GB-1384720-A (GB)
Title: Combusting flammable liquid wastes
IPC: F23G7/00
Filed: 1972-12-20
Abstract: 1384720 Incinerators MOSKOVSKY NAUCHNO - ISSLEDOVATELSKY I PROEKTNO-IZYSKATELSKY INSTITUT "MOSVODO-KANALNIIPROEKT" 20 Dec 1972 58898/72 Heading F4B Liquid waste is combusted by forming a layer of the liquid waste in a bubbling bath 1 having a grate 2 and by blowing air through ducts 3 in the grate to cause the liquid to rotate. Gasification products rise into a combustion chamber 6 to which secondary air is supplied through nozzles 7, 8, in the inner and outer walls of the chamber. The nozzles are arranged in tiers and at an angle to the walls so that the gasification products are caused to rotate in one direction by nozzles 7 and in the opposite direction by nozzles 8. In another form (Fig. 3, not shown), the combustion chamber has a single row of inwardly directed nozzles and a column in the centre of the bubbling bath carries a head with further nozzles directed outwardly.
Patent GB-1214690-A (GB)
Title: Electrical water storage heater
IPC: F24H1/20
Filed: 1968-12-11
Abstract: 1,214,690. Electric water heaters. SIEMENSELECTROGERATE G.m.b.H. 11 Dec., 1968 [20 Dec., 1967], No. 58995/68. Heading H5H. An electric water storage heater including a container 1 closed by a flange plate 6 carrying the water inlet and outlet pipes 4, 5, and the heating element 7, is characterized by its thermostat assembly 9, 10, 12, being thermally conductively coupled to the cold water inlet pipe 4, e.g. by a copper strap 11, and being situated in an air space 13 enclosed by the flange plate 6 and at sides 14, 15, by foam plastics insulating material 2. Switch 9 is operated via lever 12 by a bi-metallic member 10. The heater may be mounted below a sink. Because the bimetallic member 10 is thermally coupled both to the cold water inlet pipe 4 and to the flange plate 6 by heat radiation and/ or conduction, the heating element 7 is switched on as soon as the water in pipe 4 runs cold, e.g. when hot water is dispensed via outlet pipe 5, and is switched off only when the standing water in pipe 4 is sufficiently warmed.
Patent GB-1208829-A (GB)
Title: Improvements in or relating to bottle cleaning machines
IPC: B08B9/42
Filed: 1968-12-16
Abstract: 1,208,829. Washing bottles. WINTERWERB, STRENG & CO. G.m.b.H. 16 Dec., 1968 [5 April, 1968], No. 59656/68. Heading B8T. A crate for chain conveyer bottle cleaning machines comprises a tubular box 9, as shown, of generally hexagonal shape in transverse cross-section, open at the top and made of bent sheet metal with holes 11 in the bottom. Plastics bottle compartments 12 are provided with a pair of rectangular flanges 13 secured by nuts and bolts 14 to the flanges 10 either side of the open top of the box 9. At the bottom of the box 9 the bottle compartments 12 project through the holes 11. Holes 17 are provided in the box 9 for escape of cleaning fluid. The box 9 may be closed at the top but provided with additional holes in the top for the compartments 12. The compartments 12 may be fixed to the crate by downwardly projecting plugs (15), Fig. 4 (not shown), on the flange 13 having thickened ends which fit into corresponding bores in the flange 10.
Patent GB-1451208-A (GB)
Title: Camera case
IPC: B22C7/00
Filed: 1973-12-27
Abstract: 1451208 Camera cases NIPPON KOGAKU KK 27 Dec 1973 [28 Dec 1972] 59898/73 Heading A4G A camera case, for a camera B having a projection P at each side, comprises two connector members 2 one at each side of the case, each member 2 having one end secured to the case and the other end releasably engageable with the case so that the members 2 may be passed over the projections P and the other end of each member may be engaged with the case to secure the case on the camera. As described a neck strap S is secured by suspension rings 4 to the projections P. Each member 2 is in the form of a string, cord, or leather band having one end secured to or integral with the camera case and the other end secured to the camera case inside or outside by a releasable stud and socket fastener 2a. The case has a hole in its base to permit the camera body to be secured directly to a tripod.
Patent GB-1492539-A (GB)
Title: Packing assemblies
IPC: F16J15/32
Filed: 1973-12-29
Abstract: 1492539 Pistons POLYPAC BAL Ltd 2 Dec 1974 [29 Dec 1973] 60143/73 Heading F2T In a piston sealing member, having an elastomeric sealing ring 15, the inner and/or outer rims of support rings 16, 17 are of knurled form, to provide leakage grooves (18, Fig. 2, not shown), so as to relieve any fluid pressure which may build up in the space between them. Additional leakage grooves, extending from the base 12 of the groove up its side walls, may be formed in the groove wall itself or in the contacting face of the supporting ring. Nylon bearings rings may be provided.
Patent GB-1243378-A (GB)
Title: Improvements relating to magnetic materials
IPC: C23C18/16
Filed: 1968-12-19
Abstract: 1,243,378. Magnetic materials. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 Dec., 1968 [21 Dec., 1967], No. 60378/68. Heading H1H. [Also in Division C7] Magnetic material consists of magnetic particles (diameter <30Á) coated with metal. The magnetic particles consist of an alloy of the system M-R within the region of homogeneity which includes M-R and in which all alloys have the same hexagonal crystal structure as M 5 R where M is Co, or Co and one or more of Fe, Ni, Cu, and R is one or more of Y, Th or rare earth elements (see Specification 1,187,853). When M 5 R is Co 5 Sm, the metal coating may be NiP or B; CoP or B, SnZn or Cd; or Cu. The coated particles may be made by melting, casting and pulverizing the core materials and forming the metallic layer by sputtering, or by electroless or electrolytic deposition. In examples, SmCo 5  particles are etched in an ultrasonically vibrated vessel containing INH 2 SO 4  at 20-50 C. for 60 seconds before being electrolessly coated with Ni-P, Co-P, or Ni-Co-P and electrolytically coated with Cu. In further examples, SmCo 4 . 9  is coated with Cu or Ag by cathode sputtering, and Ni-P coatings are applied to particles of YCo 5 , GdCo 5 , PrCo 5 , LaCo 5  and Mischmetall Co 5 . The IHc of the coated particles ranges from 1700 Oe. to 26,000 Oe. Permanent magnets made from the particles are anisotropic.
Patent GB-1209249-A (GB)
Title: Anode for alkaline electrolyte fuel cell
IPC: H01M4/86
Filed: 1968-12-20
Abstract: 1,209,249. Fuel cell. UNITED AIRCRAFT CORP. 20 Dec., 1968 [27 Dec., 1967], No. 60825/68. Heading H1B. [Also in Division C7] An anode for an alkaline electrolyte fuel cell comprises a conductive screen e.g. nickel having a sintered catalytic coating consisting of by weight 65-95% powder of an alloy of nickel with Pd or Pt in an amount not exceeding 5% weight of the alloy, and 5-35% of an inert hydrophobic binder, the alloy being dispersed throughout the binder. The preferred hydrophobic material is polytetrafluoroethylene but other fluorocarbon polymers such as those of trifluorochloroethylene, fluorinated propylene, vinylfluoride, vinylidine fluoride and copolymers thereof can be used with alkali metal hydroxides of K, Na, Cs and Rb. Pt, Ni-Pt, Ag and Au may also be used to make the conductive screen. The alloy is prepared by the room temperature reduction of nickel and Pd or Pt salts with hydrazine in an alkaline solution. A thin controlled oxide film is formed on the powders before applying to the screen to form the electrode. A slurry of the powders and the binder is sprayed or filtered on to the conductive screen which is then dried and sintered in a nitrogen atmosphere.
Patent GB-1283564-A (GB)
Title: Life saving buoyancy device
IPC: B63C9/093
Filed: 1969-12-16
Abstract: 1283564 Life jackets GENTEX CORP 16 Dec 1969 [3 Feb 1969] 61298/69 Heading A3V [Also in Division B7] A life saving buoyancy device for constraining a wearer floating in a buoyant medium to a face up position, includes a first buoyant mass formed by two members 14, 16 of different buoyancies and made from e.g. unicellular foamed polyvinyl chloride, the members 14, 16 being fitted in fabric envelopes 18, 20 one on either side of the chest and being connected by cords 48, 50 to secondary buoyant masses 44, 46 positioned on the wearer's forearms. A further buoyant mass 28 may be disposed behind the shoulders of the wearer, the mass 28 and members 14, 16 being secured by belts 36, 38. Each secondary buoyant mass is formed as a tapered annuar body of material, such as expanded p.v.c., engaging a forearm by interior bosses or undulations. In an alternative embodiment as in Fig. 8 (not shown) the buoyant masses are incorporated in a sleeved jacket.
Patent GB-1299599-A (GB)
Title: Improvements in or relating to variable resistance control device
IPC: H01C10/14
Filed: 1969-12-23
Abstract: 1299599 Variable resistors CTS CORP 23 Dec 1969 [23 Dec 1968] 62666/69 Heading HIS  In a variable resistor control, Fig. 3, a screw 17 drives a gear 14 associated with a contactor assembly 22. The contactor has a carbon button 51 and a dimple 58 which contact the cermet film resistive path 18 and the collector 19, respectively, on a ceramic substrate 21. The screw is inserted in a bore of the lower half 13 of the housing and presses against a sealing ring within the bore. A seating 39 in the housing engages a groove 43 in the screw thus preventing longitudinal movement. An integral member 42 of the upper housing 12 prevents the screw lifting out of the seating. A stop arm 47 on the fixed spindle 16 limits the travel of the gear by engaging a stop member (46) on the lower surface of the gear. At least part of the gear rim is flexible so that the drive to the screw is interrupted once the contactor has reached its limit of travel. In an alternative embodiment, Figs. 5-6 (not shown), the terminals are bent at right-angles and leave the upper housing 12 through its upper surface, thus improving the terminal pull-out strength. A separate member (82) replaces the integral member 42.
Patent GB-2000605-A (GB)
Title: Stereoscopic image-viewing apparatus
IPC: G02B30/25
Filed: 1978-06-29
Abstract: Astereoscopic image-viewing apparatus utilises the Pulfrich effect to give a viewer a three-dimensional view of a two-dimensional image displayed on a screen 21. The apparatus includes a polarising plate 20 for polarising the light emanating from the displayed image, and spectacles 23 to be worn by the viewer and having at least one polarising lens 23L or 23R arranged so that the plane of polarisation is different from the plane of polarisation of the polarising plate 22, while the other lens 23R or 23L is either non-polarised or has a plane of polarisation substantially aligned with the plane of polarisation of the polarising plate 22. The polarising plate 20 may be replaced by a Kerr-effect cell 25, so that the plane of polarisation of the cell 25 can selectively be aligned with one or the other of the polarising lenses 23L or 23R <IMAGE>
Patent GB-2001125-A (GB)
Title: Reinforcing doors against forcible entry
IPC: E05C19/00
Filed: 1978-07-06
Abstract: A hinged door 11 is reinforced against forcible entry by having a strong flat metal strip 19 let into a groove 21 in the hinged edge, which strip is lock operated, e.g. by the normal door lock, so that with the door open the strip is retracted into the groove, but with the door shut the strip can be caused to project from the groove into a facing groove 24 or rebate in the stile of the door frame or casing. Also the bolt of the door lock may be a flat strip 15 of substantial height so as to reinforce the door edge 12 opposite the hinged edge. <IMAGE>
Patent GB-2005071-A (GB)
Title: A junction field effect transistor logic semiconductor device
IPC: H01L27/02
Filed: 1978-08-11
Abstract: A logic device comprises a PNP transistor (Q1) having a base (3), an emitter (1), a collector (2) and acting as an injector. A longitudinal junction field effect transistor Q2 having a source (4), a gate (2), and a drain (7) acts as a driving transistor. The PNP transistor has an N- type semiconductor region (6) of higher impurity concentration than an N-type epitaxial layer (3) acting as the base. The semiconductor region 6 is adjacent the emitter (1) on a side remote from the collector (2) and has a depth greater than the emitter. The epitaxial layer (3) has a relatively low impurity concentration. <IMAGE>
Patent GB-2005628-A (GB)
Title: Vacuum Packaging Method
IPC: B65B31/02
Filed: 1978-09-05
Abstract: In a vacuum packaging method, comprising vacuum and heat-shaping a laminated film in a mould, applying a box film over an article or commodity received in the shaped laminated film, and evacuating the base film/shaped film interspace prior to releasing vacuum in the mould to form a package, the laminated film is composed of (1) at least one plastically deformable layer of a synthetic resin having a yield stress of more than 50 kg/cm<2> at a temperature of 23 DEG C. and an elongation at the elastic limit (which term is defined) of less than 30 percent at a temperature of 50 DEG  to 180 DEG C and (2) at least one elastic layer of a synthetic resin having an elongation at the elastic limit of more than 40 per cent at a shaping temperature of 50 DEG  to 180 DEG C. The use of this laminated material in vacuum packaging provides vacuum tight packages with reduced residual stress in the packaging material.
Patent GB-2005805-A (GB)
Title: Improved valves for liquids
IPC: F16K1/34
Filed: 1978-09-13
Abstract: The invention relates to valves, such as water taps. In one embodiment, the tap has a hollow body 10 provided with an internal partition 101 formed with a valve seat. A reciprocable valve closure member comprising a plunger 25 is displaceable into and out of the valve cylinder, respectively, to close and open the tap, by means of a conventional, manually operable, screw-threaded spindle 20. <IMAGE>
Patent GB-2009991-A (GB)
Title: Electro-optic display cells and method of making same
IPC: G02F1/1341
Filed: 1978-09-21
Abstract: To produce cells to be filled with electro-optical material, e.g. liquid crystal, single or multiple arrays of electrode patterns 16a, 17a, 18a and screen- printed patterns 21 of a glass frit spacer mixture are applied to substrate sheet material 5 in patterns separately suitable for front and back substrates of a display cell and the frit is vitrified by firing. Subsequent operation of scribing and breaking (Fig 7a) of substrate sheet material along a lines 15, possibly both vertical and horizontal, through frit and electrode patterns provides individual substrates, with frit 21 and electrodes 18, 18a extending fully to the substrate edge. Subsequently, the front and back substrates are sealed together by remelting the frit. Filling passage 23 may be left after sealing; one substrate may overlap the other for ease of connection. <IMAGE>