baber/WOPTO huggingface dataset:
Patent GB-1479588-A (GB)
Title: Method and apparatus for conversion of internal combustion engines to gas fuel
IPC: F02M13/08
Filed: 1974-11-21
Abstract: 1479588 Gas carburetters H C BATE 21 Nov 1974 [31 Aug 1973] 41104/73 Heading F1B When it is desired to switch an I.C. engine from petrol to bottled gas operation, the petrol tap 9 is closed and the gas tap 8 opened to enable gas to flow from container 7 via metal piping 6, valve assembly 5 and flexible piping 4 to issue into the carburetter Venturi 2 through a nozzle 1 having its end cut at 45. Valve assembly 5 controls gas flow in response to engine intake suction by means of a diaphragm 14 acting via lever 15 on a gas valve plunger 16. The diaphragm loading spring 13 can be adjusted by nuts 12.
Patent GB-1499347-A (GB)
Title: Water filter and a water filtering device including the water filter
IPC: B01D29/01
Filed: 1975-10-07
Abstract: 1499347 Purifying water GELMAN INSTRUMENT CO 7 Oct 1975 [21 Oct 1974] 41105/75 Heading ClC [Also in Divisions Bl and F2] A domestic water filter adapted to be screwed to a tap outlet 6 comprises a two-part housing 32, 34 enclosing a replaceable cartridge 38 (Figs. 5, 6, not shown) which consists of an annular shell 40 open at the top and enclosing at least one layer 50 of woven or felted cotton or polyester fibres incorporating activated charcoal particles of 5-50 microns diameter, an intermediate layer (54) of pore size smaller than the charcoal particles (e.g. 1-10 microns) and a downstream layer (52) of pore size 0À2 to 0À5 microns which stops bacteria. Layer (52) is a unitary film of copolymer of acrylonitrile and polyvinyl chloride, possibly reinforced by a nylon fibre web embedded therein. Layer (54) may be similar to layer (52) or may be woven or felted polyester. Layers 50, (54) and (52) are shown sandwiched between layers (62) and (56), both of woven or felted natural or polyester fibre, 100-300 microns thick and with pore size greater than 10 microns. Layers (52) and (54) may be cemented to shell 40. Layers (52) and (54) are respectively 100-250 microns and 200-800 microns thick, and layers 50 total 0À1 to 0À2 inches in thickness. The floor 42 of shell 40 comprises an integral grid whose bars are of triangular cross-section with apices directed upwards, and downward projections (66) hold shell 40 off the lower housing part 34. Housing parts 32, 34 may screw together as shown or make a bayonet coupling and include radial grooves 20, 18 which carry water to and from the cartridge 38 when by-pass valve 28 is closed. When the valve is open as shown water flows from tap 6 to aerator 10 directly through central passage 12, 14 and is not filtered. The valve comprises a rubber washer 28 moved axially towards seat 30 by rotating cup-like member 19,22 which screws on to the housing. Member 19, 22 has apertures 23 by which water leaves the housing.
Patent GB-1478726-A (GB)
Title: Vehicle roll stabilization systems
IPC: F41G7/26
Filed: 1975-10-08
Abstract: 1478726 Angle determination NORTHROP CORP 8 Oct 1975 [27 Jan 1975] 41314/75 Heading G1A [Also in Division H4] Vehicle roll angle is determined, and may be used for stabilization control purposes, by transmitting an optical beam, polarized components of which carrying, guidance, control information, to the vehicle, on which is mounted a polarizing beamsplitter cube 20, the light from which is detected to provide at least one signal representative of the angle between the plane of polarization of the beam and the plane of a predetermined side face of the beam-splitter, which is then divided by a signal representative of the non-polarized components of the beam to eliminate such components and provide a representation of the deviation of the roll angle from a predetermined orientation. As shown, two angle representative signals are developed from amplifiers 32, 33, the non-polarized constant A being obtained by scanning at 35.
Patent GB-1449069-A (GB)
Title: Heating controller
IPC: G05D23/24
Filed: 1974-09-23
Abstract: 1449069 Automatic temperature control ADOLPH SAURER Ltd 23 Sept 1974 [21 Sept 1973] 41370/74 Heading G3R A control system for use with an interior heating installation has means for changing both the slope and the position of a controller characteristic (as explained below) together with means for determining which of these two adjustments is appropriate. In Fig. 1, curve a shows the relationship, for a given installation, between external temperature tA and heating medium (or heating surface) temperature THV to attain required internal temperature conditions. The controller characteristic is the relation between tA and t HV  determined by the control system and this is a straight line such as a<SP>1</SP> which approximates to the curve a. The specification shows that at high external temperatures the divergence between a and a<SP>1</SP> is best corrected by a bodily shift of a<SP>1</SP> but that at low temperatures it is better to vary the slope of a<SP>1</SP>. The control circuit of Fig. 5 uses a known bridge configuration Fig. 4 (not shown) improved by the provision of means 5 to indicate whether the external temperature is high or low. Figs. 6 and 7 (not shown) depict variants of the Fig. 5 circuit. In Fig. 5, the resistance of elements 3 and 4 vary with the external and the heating medium temperature respectively and the output between points 41, 44 leads to an amplifier which controls the heating means. This causes t HV  to rise as tA falls in accordance with a line such as a<SP>1</SP> in Fig. 1, the slope of which depends on the settings of potentiometers 2a, 2b and the position of which depends on the setting of potentiometer 1. The output between points 43 and 45 depends on the potential of point 42 and hence on the external temperature. A threshold switch 5 responds to this output by means of a signal which informs an operator that any necessary adjustment should either be a 'positional' adjustment using potentiometer 1 or a 'slope' adjustment using potentiometer 2b. Alternatively, the potentiometers 1 and 2b may have a common operating knob and the output from switch 5 may control the coupling of this knob to the appropriate one of the two potentiometers.
Patent GB-1022025-A (GB)
Title: Method for inhibiting the growth of bacteria
IPC: C11D1/00
Filed: 1962-11-01
Abstract: Soaps or detergents contain the bactericide (R3Sn)aX wherein R is a vinyl, n-propyl, isopropyl or allyl radical, X is O, S or halogen and a is accordingly 1 or 2.ALSO:Industrial waters are protected against growth of bacteria therein by treatment with a compound of formula (R3Sn)aX wherein R is a vinyl, n-propyl, isopropyl or allyl radical, X is O, S or halogen and a is accordingly 1 or 2.ALSO:The growth of gram negative bacteria on liquid or solid media is prevented by applying thereto a compound of formula (R3Sn)aX wherein R is a vinyl, n-propyl, viopropyl or allyl radical, X is oxygen sulphur or a halogen atom and a is accordingly 1 or 2.  The compounds may be applied as solutions, dispersions and emulsifiable concentrates containing non-ionic, cationic or anionic surface active agents.  The process is used to treat textiles and industrial waters.
Patent GB-990994-A (GB)
Title: Method of and means for clamping ropes together
Inventor: DRYSDALE JOHN
IPC: F16G11/02
Filed: 1960-12-02
Abstract: 990,994. Coupling ropes. CABLE COVERS Ltd. Jan. 30, 1962 [Dec. 2, 1960], No. 41460/60. Heading D1T. A method and means for clamping non- metallic ropes together comprises a ductile metal sleeve 1, Fig. 6, of uniform bore which is radiused or chamfered either internally or externally at its ends and into which the rope lenghts are inserted, the sleeve being then subjected to pressure to cause the sleeve to extrude into the interstices of the ropes Fig. 7. The sleeve illustrated in Fig. 6 may be formed by suitably compressing a cylindrical sleeve and after the rope lengths have been inserted the sleeve is compressed back to cylindrical form to trap the rope lengths therein Fig. 7.
Patent GB-1440760-A (GB)
Title: Apparatus for the continuous polymerisation of polyamides
IPC: C08G69/00
Filed: 1972-09-07
Abstract: 1440760 Continuous polyamide manufacture IMPERIAL CHEMICAL INDUSTRIES Ltd 20 Aug 1973 [7 Sept 1972] 41488/72 Heading C3R [Also in Division B1] A continuous process for the manufacture of high molecular weight linear polyamides by condensation polymerization comprises passing an aqueous solution of a polyamide-forming monomer under elevated temperature and superatmospheric pressure through an elongate reaction zone at least the inner surface of which comprises metallic titanium, and the diameter of which increases gradually or stepwise, but never. decreases, along its length. The diameter of the zone is related by a mathematical formula as in Specification 1,085,816 in which the parameter V may be up to 10,000 Q to the rate of output of polymer. The elongate zone may be a helix. Examples relate to polymerization of nylon 6 salt in the presence of excess hexamethylene diamine and are compared to similar examples using steel apparatus.
Patent GB-1373864-A (GB)
Title: Indicator device for rotary elements
Inventor: BRAUKMANN H
IPC: F16K37/00
Filed: 1972-09-07
Abstract: 1373864 Friction gearing; valves HBRAUKMANN [tading as HEINRICH BRAUKMANN] 7 Sept 1972 [21 Sept 1971] 41599/72 Headings F2Q and F2V [Also in Divisions G1 and G4]  An indicator showing the rotational position of a valve spindle 8 or 32 comprises a cylindrical housing 2 and a rolling element 12 pressed against the inner wall 11 of the housing by a pressure device 13 and engaging the wall 11 frictionally or by intermeshing teeth, one of the two parts comprised by the housing 2 and the pressure device 13 being connected for rotation with the spindle and the other part being fixed. The tubular rolling element 12 has on its outer surface a graduated scale which is viewable through a window 27 in the housing 2. On relative rotation between the pressure device 13 and the housing 2, the rolling element 12 is caused to planetate, its rotation relative to the housing 2 being only a fraction of the relative rotation between the pressure device 13 and the housing. In Fig. 1, the pressure device is a resilient spherical roller 14 carried on an arm 16 secured to a sleeve 15 which is connected for rotation with the spindle 8 by a screw 22 which engages a longitudinal slot 20 in the spindle. The sleeve 15 is rotatable in the housing. The spindle 8 is in screw-threaded engagement with the housing at 5. The rolling element 12 carries friction tyres 18, 19. The indicator may indicate axial movement of the spindle due to its rotation, and hence movement of a valve member actuated by the spindle. In Fig. 4, the sleeve 15 is rigidly connected to the spindle 32 and supports a pressure roller 30 on a leaf-spring 29. In either embodiment, the roller may be carried by a telescopic arm.
Patent GB-1360413-A (GB)
Title: Locking arrangement
IPC: B60R11/00
Filed: 1971-09-08
Abstract: 1360413 Locks MOTOROLA INC 8 Sept 1971 [11 Sept 1970] 41793/71 Heading E2A A radio, tape-recorder &c 10 is secured arid locked to a vehicle dash-board 11 having a support bracket 13 inside it, by means of a lock body 45 secured through the base 21 of the appliance and having, connected by pin 42 to its barrel, a threaded bolt 29 projecting up through a hole in the top cover 19 and also the dash. A threaded sleeve 25 having a head resting on the bracket and longitudinal slots (59) engaged by projecting tongues (57) on the top cover to prevent its rotation. To secure the appliance, the sleeve is inserted downwardly through the hole in the bracket and into a sleeve 61 passing into the appliance, and the lock barrel is rotated by the key 40 to engage the threads. In the form shown in Fig. 5, the threaded sleeve is divided into two parts 63, 65 joined by a step so that guide-pins 75 prevent both rotating.
Patent GB-1513559-A (GB)
Title: Printing devices
IPC: B41K3/12
Filed: 1975-10-13
Abstract: 1513559 Selective printing PITNEY BOWES LTD 13 Oct 1975 41809/75 Heading B6F In a printer having printing members 19 selectively alignable with the surface of a drum 11 for printing on documents 13, a bail 25 is urged by rod 33, against the action of spring 36, to engage one of the notches 20 between the members 19. This locks the members 19 against any type selection movement. A cam 41 moves the rod 33 so that whenever the drum 11 is out of its home, i.e. type selection, position, the bail locks the members 19 against movement.
Patent GB-996583-A (GB)
Title: Circuit arrangement with a magnetron
IPC: H01J23/10
Filed: 1962-11-06
Abstract: 996,583. Supply arrangements for magnetrons. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 6, 1962 [Nov. 9, 1961], No. 41948/62. Heading H3W. [Also in Division H1] In a magnetron supply circuit in which the cathode-anode path of the magnetron 1 is in series with the magnetic field producing coil 2 and the magnetron is fed with A.C., a shunt circuit including a rectifier 3 and a resistor 4 is provided across the coil in order to reduce fluctuations of the magnetic field and therefore eddy current losses in the magnetron anode while permitting the initial current when the magnetron is initially connected to the supply to be maintained within allowable limits. A further shunt connected voltage-dependent resistor 5 attenuates the voltage peaks across the coil 2 during the intervals when the magnetic field is increasing and the shunt circuit 3, 4 is cut off. An inductor 6 may be included as shown. Only part of the magnetron magnetic field may be produced by the coil 2. Two or more magnetrons may be fed in parallel from a common source.
Patent GB-1134447-A (GB)
Title: Wide-band hybrid network
IPC: H01P5/18
Filed: 1966-09-20
Abstract: 1,134,447. Power dividing networks. HUGHES AIRCRAFT CO. 20 Sept., 1966 [8 Oct., 1965], No. 41988/66. Heading H1W. A wide-band hybrid network includes four sections of transmission line, a first end of each of the first and second sections being conductively connected together, a first end of each of the third and fourth sections being conductively connected together, the first and third sections being electromagnetically coupled over at least a substantial portion of their respective lengths in such a manner that the coupling increases steadily along their length towards their first ends, the characteristic impedances of the first and third sections varying along their respective lengths, the conductively connected sections having mismatched characteristic impedances at their junctions, and the second end of each section being connected to a corresponding port of the network. Strip transmission lines are preferably employed, Fig. 4, the first and third sections 20 and 21 being tapered in width, and their spacing apart decreasing, towards that end at which they are connected to the uniform sections 22 and 23. The sections and their dielectric substrate 40 are sandwiched between, and spaced from a pair of ground planes by, a pair of dielectric sheets (Fig. 5, not shown), a series of screws connecting the ground planes and located between sections 21 and 22, and 23 and 24, Fig. 4, minimizing the coupling between the members of those pairs. The cascaded combination of two networks of the above type is also described (Figs. 7 and 8, not shown), an arrangement which permits the omission of two of the uniform, uncoupled sections to give a structure formed by two sets each consisting of one uniform and two non-uniform sections connected in series, one set being mounted on each face of the dielectric substrate. The use of coaxial rather than strip lines is referred to.
Patent GB-1282098-A (GB)
Title: Improvements in or relating to the manufacture of pneumatic tyres
Inventor: HARRINGTON WILFRED HENRY
IPC: B29D30/00
Filed: 1968-09-05
Abstract: 1282098 Tyre supporting device DUNLOP HOLDINGS Ltd 4 Sept 1969 [5 Sept 1968] 42260/68 Heading B7C A tyre supporting device comprises an annular band 2 locatable circumferentially around a tyre carcass, at least one "spider" 3 releasably secured to and mounted coaxially with the band and at least one bead support saddle 17 mounted on the "spider" 3. The band 2 is adjustable in length, the adjusting means comprising a toggle clip 5 at one end of the band and a plurality of longitudinally spaced apart hooks 6 at the other. The bead supporting saddles 17 are each slidably located on an arm 9 of the spider 3. Each arm 9 has one end pivotally secured to the boss 8 and the other end releasably secured to the band. The boss has a coaxial hole 10 for the insertion of a crane hook or the like. The arms 9 may comprise rectangular section strips, chains or, to render their length adjustable, two telescopic tubular portions and may be adapted to grip the tyre sidewalls. The device may be used in tyre manufacture to transport the tyre from the shaping machine to the next manufacturing stage. Specifications 1,205,951 and 1,252,431 are referred to.
Patent GB-938263-A (GB)
Title: Dressing of minerals
IPC: B03B1/00
Filed: 1959-12-11
Abstract: A mixture of minerals to be conveyed hydraulically, and containing substances of different specific gravity and hardness, is prepared by dividing it into portions of higher and lower specific gravity, crushing the separate portions to such particle sizes that the rate of sinking in the carrier liquid of the heavier portion is equal to or less than the lighter portion, and combining the two portions. The minerals may be crushed one after the other in a single machine, simultaneously in a single machine by introducing the two portions at different points or in two separate machines.  Where a machine separates minerals into a plurality of products the two portions containing the highest proportions of desired product are selected and crushed according to the invention and conveyed hydraulically. The surface of minerals may be treated e.g. by wetting agents.
Patent GB-1244855-A (GB)
Title: Improvements in or relating to electrostatic printers
Inventor: ROBINSON GENE HAROLD
IPC: G03G15/05
Filed: 1968-09-05
Abstract: 1,244,855. Electro-photographic apparatus. EASTMAN KODAK CO. Sept. 5, 1968 [Sept.6, 1967], No.42324/68. Heading G2H. Electro-photographic apparatus comprises a photo-conductive element p placed over a receiving sheet R supported on a platen S, the platen comprising a base 25 and a plurality of conductive segments 19, 20, 21 mounted on the base and electrically insulated from each other, connections permitting electrical connection between the segments. The photo-conductive element consists of a photo-conductive layer having a transparent conductive layer on one side and a transparent support on the other side. The receiving sheet has a paper base with a conducting layer on one side and an insulating layer on the other side. A switching circuit 37 applies a potential from voltage source 36 to selected platen segments, the other side of the voltage source being connected to the conductive layer of the photo-conductive element. Upon operation, the size of receiver sheet is manually selected by adjusting the feed from supply roll 13 and the switching circuit 37, segments being selected that will just cover the area of the sheet. Arms 41 and 42 move vertically downward to lower photo-conductive element on to the receiving sheet, and a knife 43 co-operates with a stationary cutter 44 to cut the sheet into the selected length. The platen is segmented in a transverse direction to accommodate receiver sheets of varying width. After exposure, the photo-conductive layer is raised and the sheet carrying the latent image is fed to a developing tank 70 and past an infrared lamp 77 to dry the paper and fix the image.
Patent GB-1061904-A (GB)
Title: Improvements in or relating to compositions containing metal deactivators
Inventor: ELLIOTT JOHN SCOTCHFORD
IPC: C07D235/08
Filed: 1962-11-09
Abstract: Functional fluids (e.g. lubricants, steam turbine oils, transformer oils, switch oils, and hydraulic fluids) comprise a base oil and at least 0.002 wt. per cent of one or more additives having one of the formulae <FORM:1061904/C4-C5/1> <FORM:1061904/C4-C5/2> <FORM:1061904/C4-C5/3> where R is hydrogen or a short-chain alkyl radical, R1 and R2 are alkyl, aryl, cycloalkyl, aralkyl or heterocyclic radicals (or may together form part of a ring structure, and Ar is an aromatic ring system.  Typical of many specified compounds are 1-morpholinomethyl-2-methyl benzimidazole, and 1-(p-decoxydiphenylaminomethyl) benzotriazole.  The base oils of the fluids may be mineral oils, mixtures of two different mineral oils, or synthetic oils, e.g. di-(2-ethylhexyl) sebacate, diacetone alcohol, C1-4 alkyl mono-ethers of mono-, di- and polyethylene glycols, and mixtures of the latter with refined castor oil or ethylene oxide treated castor oil.  Many optional additives are specified, including secondary aromatic mono-, di-and poly-amines, phenothiazine, alkyl phenols, long-chain alkenyl succinic acids, primary and secondary monoamine orthophosphates and sulphates, dialkyl citrates, polyesters derived from polyalkylene glycols and aliphatic di- or poly-carboxylic acids, chlorinated paraffin wax, n-butyl dimethyl dithiocarbamyl acetate, tricresyl phosphate, or one of the compounds described in Specification 1,028,924.ALSO:The preparations are described of (A) 1-(4-morpholinomethyl) benzotriazole, (B) 1-(di-n-butylaminomethyl) benzotriazole, (C) 1 - (di-phenylaminomethyl) benzotriazole, and (D) N,N-bis(benzotriazolylmethyl)lauramine by reacting formalin, benzotriazole and (A) morpholine, (B) di-n-butylamine, (C) diphenylamine, and (D) laurylamine; and of (E) 1-(morpholinomethyl) benzimidazole by reacting formalin, benzimidazole and morpholine.
Patent GB-1419516-A (GB)
Title: Machine tool chucks
IPC: B23B31/30
Filed: 1972-09-13
Abstract: 1419516 Chucks PRATT BURNERD INTERNATIONAL Ltd 13 Sept 1973 [13 Sept 1972 10 Nov 1972] 42495/72 and 52059/72 Heading B3B [Also in Division F2] A chuck of the type comprising a fluid pressure operated piston 5 axially displacable in a body 1 to move radially, via inclined earn surfaces, a set of jaws 7, in which the fluid pressure, e.g. compressed air, is supplied through a stationary slip ring 9 surrounding the body 1, is characterized in that the slip ring 9 has an annular recess 12 in which is mounted a sealing ring 11 through which the piston actuating fluid pressure passes by way of holes 14, the throttling effect of which causes pressure to deform a central sealing part of the sealing ring into sealing contact with the body 1, the sealing ring having a central sealing part with a contact face 18 and marginal peripheral edge parts 17 which are secured relative to the slip ring. These edge parts 17 are secured by physical engagement in grooves 19 in the sealing ring 9 and/or by an adhesive. Figs. 3 and 4 (not shown) illustrate alternative forms of sealing ring cross-sect on. In an alternative embodiment (Fig. 5, not shown) the slip ring and sealing ring operate on a plane radial surface of the chuck body. The body 1 has two sealing rings for a double acting piston 5 and houses two valves (16), 16a (Fig. 6, not shown) which operate together to control supply and exhaust passages to and form the cylinder chambers 2a, 2b. The valves include manually operable spools (103a) to allow pressure in the cylinder chamber 2a or 2b to be reduced.