baber/WOPTO huggingface dataset:
Patent GB-279143-A (GB)
Title: Improvements in internal expanding or external contracting brakes
IPC: F16D49/16
Filed: 1927-01-28
Abstract: 279,143. Swales, E., and Swales, J. Jan. 28, 1927. Blocks and shoes acting on drums; force-transmitting mechanism; compensating for wear.- Operating mechanism for internal or external shoe brakes comprises a right- and left-handed screwed rod engaging the screwed ends of the shoes and rotated by a rack and pinion. The application of the brake to the front and rear wheels of a vehicle is described. As applied to a front steering wheel, the stub axle a, Fig. 3, 4, is formed with a bracket a<1> provided with lugs through which pass rods b, b<1> upon which the brake shoes B, B<1> are mounted. Nuts b<2> on the rod b<1> serve for the adjustment of the shoes. The shoes are applied to and disengaged from the drum by the rod b, which has a right- and lefthanded screwed parts engaged by lugs b<3> on the shoes and is provided with a pinion C engaged by a rack D pivotally connected at a point d<2> in the axis of the steering pivot to a rod F universally jointed at f to a pull rod f<1>. The rack D is guided bv means of a tongue and groove connection with a bracket c. For the rear wheels ,the lugs a<2> for the screwed rods and the guide for the rack are provided on a bracket secured to the axle casing. An internal expanding brake is also described and in this case the lugs on the shoe ends through which the rods b, b' pass extend laterally to the exterior of the drum.
Patent GB-1105632-A (GB)
Title: Improvements in the circuit arrangement of a synchronous stereo balanced demodulator
Inventor: MACK ZDENEK
IPC: H03D1/22
Filed: 1965-03-17
Abstract: 1,105,632. Stereophonic radio receivers. TESLA, NARODNI PODNIK. 17 March, 1965 [18 April, 1964], No. 11285/65. Heading H4L. A demodulator for a stereophonic radio signal of the pilot tone type comprises four diodes, Fig. 2, connected as shown to a common point A and to pairs of resistors forming the arms of a bridge. The regenerated switching signal fp is applied via transformer T1 to two opposite terminals of the bridge and the composite stereophonic signal is supplied by amplifier E1 to the point A, the demodulated left and right stereo signals appearing at the remaining terminals L and P, respectively. Crosstalk is reduced by a signal from amplifier E1 fed either to a centre tap of the secondary winding of transformer T1 or to the junction of resistors Ra in the output circuit. The output resistance of the bridge in combination with capacitors CL, CP may constitute the de-emphasis circuits. In a modification, Fig. 3 (not shown), the subcarrier difference signal is demodulated separately in the bridge circuit and the sum signal, which is separated from the difference signal in the amplifier El, is combined with the difference signal after detection to produce the left and right signals. In a further arrangement, Fig. 4 (not shown), a pair of the bridge circuits are provided, one supplying the left and the other the right output signal.
Patent GB-1556898-A (GB)
Title: Polycarbonate membranes foe use in hemodialysis
IPC: B01D71/80
Filed: 1977-03-17
Abstract: The hydrophilic polycarbonate membrane is used for preferential removal of molecules of moderate molecular weight from the blood. The polycarbonate preferably comprises a polyether-polycarbonate block polymer containing 5-35% by weight of recurring alkylene ether carbonate units and 95-65% by weight of bisphenol A carbonate units. The membrane exhibits improved transport properties for molecules of moderate molecular weight and approximately the same ultrafiltration rate as cellulose membranes. Patients treated in dialysers using the polycarbonate membranes exhibited improved haemocritical and neurophatic functions.
Patent GB-1102023-A (GB)
Title: Automatic machine for vending newspapers
IPC: G07F11/04
Filed: 1965-03-17
Abstract: 1,102,023. Vending newspapers. W. SLAVIK. 17 March, 1965, No. 11377/65. Heading G4V. A coin-freed newspaper delivery machine has a stack of newspapers resting on a slotted platform 2, and teeth 14 are traversed to effect delivery, each tooth being swung upwards to engage a newspaper on the forward stroke, and swung back into its slot 3 on the return stroke. Each tooth is mounted on a plate-like lever 12 on shaft 11, the ends of which slide in guides. A second common shaft 18 is journalled in levers 12, and is connected by links 20 to a third common shaft 22 also sliding in guides. Shaft 22 is connected by a draw-bar 23 and rod 24 to a customer-operated draw knob 25. One lever 12 supports a pawl 31 having a hook 33 engageable with a fixed abutment 37, and having a pin 35 engageable with a hook 36 on the draw-bar 23. At each end of shaft 22 is secured a lever 46 having a hook 47 engageable with a fixed pin 48, and bearing a pin 50. Coins falling down shoot 40 rest in pocket 42, the lower coin being on a platform 43 secured to the draw bar, and the upper coin resting in the path of pin 50. The shoot 40 may be moved so that an alternative pocket holding a single coin becomes operative. When the coin or coins are in place, the customer pulls knob 25, and thus shaft 22. After a short movement, pin 50 rides over the coin 41<SP>1</SP>, to release hook 47 from pin 48, and platform 43 is withdrawn to drop the coins into box 44. Shaft 11 is held by hook 33, so that the pull on shaft 22 raises shaft 18, and thus the teeth 14 to engage a newspaper, and shaft 18 also rotates pawl 31 to release hook 33. The delivery movement can now be completed, a lip on a thimble member at the delivery slot permitting only one paper to be delivered. The return movement is effected by springs acting on shaft 22, to collapse the linkages 20, 12 and lower shaft 18 and teeth 14. Gravity engages pin 35 with hook 36, so that a second pull exerted on drawbar 23 will not raise teeth 14 and give a second delivery. Pin 35 is disengaged for the next delivery by abutment 37, by which time the hooks 47 are re-engaged. Delivery may be from the top of the stack, the stack being moved up in conventional fashion, or the delivery mechanism and slot being moved down.
Patent GB-293927-A (GB)
Title: Improvements in or relating to the purification of liquid trades waste
IPC: B01D21/00
Filed: 1927-04-29
Abstract: 293,927. Pennell, R. H. L., and Brackett, F. W. April 29, 1927. Plant.-Liquid trades waste, such as the effluent from a beet-sugar factory is passed successively through a screen, which removes the larger solid matters, a settling- tank, and two or more filters, means being provided for drawing- off a part of the liquid before the last filter and re-circulating it for use in the factory processes. The apparatus shown comprises a screen a, settling-tank c, and filters d, e, g arranged so that the liquid passes upwards through the medium. The later filters are larger than the first so that the rate of flow is reduced. The purified liquid is collected in a channel h from which there are connections to discharge and for re-circulation of the water through the factory. Liquid passes from above the medium in the filter e to below the medium in the filter g through regulators f which can be partially or wholly closed, so that part or all of the liquid from the filters e may be collected in a channel l connected to the re-circulation conduit. Sludge collecting at the bottom of the tanks is discharged into a channel p through valves m operated by hand-wheels n and levers o. A duplicate series of filters is provided.
Patent GB-1027535-A (GB)
Title: Arrangement for the control of a wagon retarder
IPC: B61L17/02
Filed: 1963-03-22
Abstract: 1,027,535. Automatic speed control. SIEMENS & HALSKE A.G. March 22,1963 [March 24, 1962], No. 11425/63. Heading G3R. [Also in Division B7] An arrangement for controlling the release of a retarder positioned on an inclined track in a hump yard classification system comprises means for initially releasing the retarder when the speed of a vehicle or cut of vehicles in the retarder Vt = VS - #V - dVt/dt (TR - #t), where Vs is the computed required release speed, TR is the reaction time of the retarder and #V and #t are empirically obtained speed and time correction values respectively, and subsequently applying braking and release instructions whenever the value Vt is greater or less than Vs, respectively. The retarder 2 is controlled by setting motor 3 which normally applies a braking pressure determined by a vehicle weight class determining device 5 and this pressure is released when a signal is applied to the motor from a comparison device 6 via AND circuit 7 and amplifier 4. The speed of a vehicle in the retarder is determined by a radar speed measuring device 13,13a and a voltage analogue of this speed is applied to input c of the comparator 6 and also to a stage 21 in which the voltage is differentiated and multiplied by a signal representing the constant time period TR - #t. A voltage representing the leaving speed Vs is obtained via switch 17 from a computer 18 or manually set device 16 and applied to a summing circuit 14 in which it is added to a fixed voltage representing -#V obtained from unit 19 and applied to the adder via switch 20. The output of the adder 14 is applied to a second adder 15 in which it is summed with the output of circuit 21 applied via switch 23 and the output of adder 15, comprising a voltage representing Vs - #V - dVt/dt(TR - #t) is applied to terminal d of the comparator. "AND" circuit 7 is opened when the radar system is on and a wheel trip 9a at the entrance to the retarder has been operated so that when the vehicle has been retarded such that the voltage value of Vt falls below the voltage at terminal d the retarder is released. The release takes place at a speed below the value Vs and when the vehicle accelerates, due to the track inclination, and attains the value Vs a second comparator 25, supplied with the voltages Vs and Vt, operates and switches a flip flop 26 to a second stable state which releases switches 20 and 23. The input to terminal d of comparator 6 now becomes the voltage Vs and the braking pressure is subsequently applied and released whenever the speed voltage Vt is greater or less than the voltage Vs. The exit of the vehicle from the retarder is detected by a light and photocell arrangement 12, 12a which develops a signal to return flip flops 8 and 26 to their initial states.
Patent GB-1433524-A (GB)
Title: Water-repellent and oil-repellent compositions based on fluorine  compounds
IPC: C23C22/00
Filed: 1973-03-09
Abstract: 1433524 Polymer compositions for providing protective coatings PRODUITS CHIMIQUES UGINE KUHLMANN 9 March 1973 [10 March 1972] 11466/73 Heading C3P [Also in Divisions B2 and D1] A mixture for rendering substrates oil and water repellent comprises: (A) an aqueous dispersion of a copolymer containing in interpolymerized form (1) 30-99 wt. per cent of one or more monomers of the formula in which Rf is a C 1-20  perfluorocarbon chain (straight or branched); a is an integer of 2-20; R is H, C 1-10  alkyl, C 5-12  cycloalkyl, C 2-4  hydroxyalkyl, or aryl optionally substituted with a C 1-6  alkyl group; R<SP>1</SP>, R<SP>11</SP>, X and X<SP>1</SP> may be the same or different and represent H, or C 1-4  alkyl, b is an integer of 1-4; and Y represents the residue of an alkene monocarboxylic acid or dicarboxylic acid or monoalkyl ester thereof; (2) up to 70 wt, per cent of one or more non-perfluoro group containing ethylenic monomers; and (3) up to 10 wt. per cent of one or more ethylenic monomers containing at least one reactive group; and (B) an aqueous dispersion of a copolymer containing in interpolymerized form: (1) 1-70 wt. per cent of one or more monomers of the above formula in (A) (1); (2) 30-99 wt. per cent of one or more monomers as in (A) (2); and (3) 0 to 10 wt. per cent of one or more monomers as in (A) (3). Non perfluoro group containing monomers (A) (2) and (B) (2) may be virtually any ethylenic monomer including vinyl, vinylidene, allyl, and diene compounds, an exhaustive list of which is given. Monomers (A) (3) and (B) (3) containing reactive groups are those containing such groups as will produce cross-links either between the two polymers or one or both of them and the substrate. Suitable reactive groups are -OH, -NH 2 , -NH-alkyl, -COOCH 3 , -SO 3 H, Again, an exhaustive list is given. In the examples the perfluoro monomers used are perfluoroalkyl sulphonamido alkyl acrylates in which the perfluoro group is C 8 F 17  or C 6 F 13 . Substrates which may be rendered oil- and water-repellent are woven and non-woven articles based on cellulose or regenerated cellulose, cotton, cellulose acetate, wool, silk, polyamide, polyester, polyolefin, polyurethane and polyacrylonitrile fibres. Other substrates are paper, cardboard, leather, plastics, glass, wood, metals (Al, Fe, steel, Cu, Mg, Cr, Zn or Sn), porcelain and concrete.
Patent GB-315814-A (GB)
Title: Improvements in or relating to the manufacture of articles from dispersions of organic materials
IPC: B29C37/00
Filed: 1928-04-19
Abstract: 315,814. Dunlop Rubber Co., Ltd., and Trobridge, G. W. April 19, 1928. Moulding by dipping; moulding indiarubber &c. -In the manufacture of goods directly from aqueous dispersions, e.g. of rubber, e.g. by dipping, spreading, spraying but not by electrophoresis, the deposition bases are engraved, embossed, printed or otherwise marked, e.g. with inks or other colouring matter and produce a corresponding marking on the goods. Rubber goods may be dried and vulcanized on the deposition bases which may be wholly or partly porous and may be of metal, glass or porcelain. The invention is particularly applicable to the process described in Specification 287,946.
Patent GB-599555-A (GB)
Title: Method of manufacture of synthetic resin articles by polymerization
IPC: B29C35/04
Filed: 1945-05-07
Abstract: Synthetic resin articles are manufactured by subjecting liquid monomer in a mould to a local polymerizing action in successive adjacent zones by gradual and systematic displacement of the polymerization promoting agent along a <PICT:0599555/IV/1> <PICT:0599555/IV/2> <PICT:0599555/IV/3> <PICT:0599555/IV/4> path corresponding to the outline of the mould so as to scan its whole area.  Monomers specified include acrylic, methacrylic and vinyl compounds.  As promoting agent heat and infra red, ultra-violet, visible light, and X-rays, supersonic waves, electrical fields and radioactive materials may be used.  Fig. 1 is a suitable nozzle for applying a heated fluid.  Fig. 5 shows the use of a diaphragm for controlling radiations applied and Figs. 2, 3 and 4 show suitable diaphragms.  Specification 477,364 is referred to.
Patent GB-232420-A (GB)
Title: Improvements relating to safety suspension apparatus for minecages, lifts and the like
IPC: B66B5/24
Filed: 1924-05-10
Abstract: 232,420. Webb, S., and Guest, H. C. May 10, 1924. Catch gear of minecage type.-The housings c of the guide gripping devices are attached to brackets d on the cage by fragile connections such as copper rivets e which break when the housings become secured to the guides on breakage of the hoisting rope. A spring g surrounding a rod h is placed between the housing c and a slipper f on the cage for the guide a. Fragile joints j are also provided in the actuating rods. Specification 217,948 is referred to.
Patent GB-623328-A (GB)
Title: A coupler for coupling two shafts, spindles or the like
IPC: B65G37/00
Filed: 1947-04-30
Abstract: 623,328. Endless conveyers. COLLIS, L. A., and COLLIS & SONS, Ltd., J. April 30, 1947, No. 11575. [Class 78 (i)] [Also in Group XXIV] A coupler for coupling together two shafts of adjacent endless conveyers comprises a casing 10 in which two sprockets 11, 12 or the like, adapted to be connected to two shafts 19, are carried in ball and socket mountings to permit of slight self-adjustment of the spindles. As shown, the casing 10 has flanged members 16 each housing a socket element 15 with slight clearance such as to allow variation in the pitch of the shafts 19, and in which is fitted a ball element 14. The ball elements 14 have square or other non-circular bores 18 to engage correspondingly shaped shaft ends. In a modification, the ball elements 14 have square or other non-circular spindles to engage complementary recesses in the driving and driven members. Furthermore, drive between the two ball elements may be by gear, belt or friction means. The device may be used in conjunction with belt conveyers as described in Specification 611,199.
Patent GB-1302981-A (GB)
IPC: B29C48/475
Filed: 1971-04-27
Abstract: 1302981 Pistons ALFRED FISCHBACH KG KUNSTASTOFF-SPRITZGUSSWERK 27 April 1971 [9 July 1970] 11664/71 Heading F2T [Also in Division Fl] A closure of resilient material operable as a piston to expel plastic material from a container 9 comprises an externally convex end plate 2 having a sealing lip 3 around its edge, a skirt 1 extending from the lip 3, stop means, e.g. an annular ridge 4, on the inner surface of the plate 2, an annular lip 6 within the skirt and extending from the plate axially beyond the stop means 4 and a thickened wall portion 8 on the skirt which is spaced from the sealing lip 3 and, in use, engages the container wall. The closure is inserted to the filled container by a piston 10, Fig. 2, formed to engage firstly the edge 5 of ridge 4 and then the edge 7 of lip 6 whereby the lip 3 is not in contact with the container wall and any air is free during ininsertion to escape past the skirt. The discharge end of the container has an outlet 12 closed by stopper 13 (Fig. 3). To expel plastic material, after removing the stopper and fitting a discharge nozzle 14, the closure is pressed inwards by a plate 15 which engages firstly the edge 7 and then the edge 5 so that the lip 3 sealingly engages the container wall and the closure acts as a discharge piston.
Patent GB-466921-A (GB)
Title: Automatic mixing and fine-grinding rolling mill
IPC: B02C4/04
Filed: 1936-04-24
Abstract: 466,921. Grinding and mixing machines. THEINER, L. April 24, 1936, No. 11684. Convention date, April 24, 1935. [Classes 59 and 86] In a machine for grinding paint,- chocolate, &c., of the kind comprising a number of parallel rollers arranged to form a trough, end plates being provided, mixing is effected by a roller which rotates faster than the other rollers and is spaced therefrom, or by two mixing-rollers rotating in opposite directions, one being a high speed roller. As shown, the mixing-roller 5, on to which the ingredients are sprinkled, rotates in the same direction as, but at a higher speed than, the first fine grinding-roller 1 ; a scraper 8 assists the mixing operation. In a modification an additional scraper deflects some of the material into a jacketed trough below the rollers where it is picked up by the first grinding-roll. In another form the material falls on to a slow moving mixing-roll rotating in the opposite direction to, and working with, a high speed mixing-roller.
Patent GB-764334-A (GB)
Title: Anti-corrosive, shock-resistant lined liquid-handling articles such as containers
IPC: B29C63/26
Filed: 1953-04-28
Abstract: 764,334. Laminated materials. MANUFACTURES DE CAOUTCHOUC INDUSTRIEL P. LACOLLONGE. April 28, 1953 [Oct. 7, 1952], No. 11748/53. Class 140. [Also in Group XXIX] A laminated material for lining tanks or vats consists of alternate thin sheets of a butadieneacrylonitrile copolymer and thicker sheets of ebonite or vinyl resin. In examples: (1) a laminated sheet consisting of a rigid sheet of unplasticized polyvinyl chloride and a thinner sheet of a vulcanizable composition containing a butadiene-acrylonitrile copolymer is softened by heat and used to line a concrete vat; (2) a lining for a metal tank consists of two sheets of raw ebonite and an interposed sheet of a vulcanizable composition containing a copolymer of butadiene and acrylonitrile. It is secured to the tank by a natural rubber adhesive and vulcanized by admitting steam into the tank. Specification 760,395 is referred to.
Patent GB-958435-A (GB)
Title: Liquid fuel injection pumps
Inventor: VOLOSSEVICH GEORGE
IPC: F02M59/00
Filed: 1962-03-28
Abstract: 958,435. Fuel injection pumps. C.A.V. Ltd. March 15; 1963 [March 28, 1962], No. 11829/62. Headings F1A and F1B. In a fuel injection pump comprising a piston 5 having a control groove 16, the angular position of the piston, and hence the quantity of fuel delivered, is determined by the setting of a throttle 27 controlling the flow of liquid from above a spring-loaded sleeve 18 which rotates the piston until the commencement of injection. Sleeve 18 is movable axially but not rotatably relative to piston 5 and has helical teeth 22 engaged by a bevel pinion 23 on an adjusting rod 24. Rod 24 is movable angularly to determine the maximum delivery of the pump, and is movable axially against spring 25 to provide excess fuel for starting. During the downward stroke, piston 5 engages sleeve 18 to move it downwardly, thereby rotating the piston to its minimum delivery position. A feed pump supplies fuel to the pumping chamber and, via a check valve, to chamber 17 above sleeve 18. On the upward stroke, sleeve 18 is moved upwardly by spring 17a at a rate determined by throttle 27 and rotates piston 5 towards its maximum delivery position until injection starts, whereupon friction between piston foot 5a and a collar 6 prevents further rotation of the piston.
Patent GB-1222793-A (GB)
Title: Improvements in or relating to centrally controlled exchange systems
IPC: H04Q3/545
Filed: 1969-03-06
Abstract: 1,222,793. Automatic exchange systems. SIEMENS A.G. 6 March, 1969 [7 March, 1968], No. 11906/69. Heading H4K. A matrix store served by row and column scanners serves to record data relative to subscribers lines on the one hand and exchange operators' positions and junctor circuits on the other hand, some rows of the matrix serving to record data relative to individually associated junctor circuits or operators' positions while other rows serve to record data relating to associated groups of subscribers such other rows having an individual storage element relating to each subscriber of the group and at least one extra element to record data relating to the group as a whole. Further rows of the matrix may be employed in the processing of push-button dialling signals as buffer stores, or may be used to record the numbers of frequently wanted subscribers. Data recorded for own-exchange junctor circuits comprises last look state, calling and called subscribers identities and classes of service, the junctor identity, and a sequence state for call establishment and supervision. Data collected for other-exchange junctors comprises last look state, calling subscriber and junctor identities, metering data and call sequence state. The matrix may be comprised of ferrite cores and a number of planes to give each element a multi bit capacity. The subscriber line groups are of such a size as to require the same average processing time per matrix row as for junctor circuits.
Patent GB-791658-A (GB)
Title: Improvements in or relating to the preparation of a stabilized raney nickel catalyst
Inventor: OCKRENT CHARLES
IPC: B01J25/02
Filed: 1955-04-25
Abstract: A stabilized Raney nickel catalyst is prepared by forming a solidified suspension of Raney nickel in a fatty alcohol having from 16 to 26 carbon atoms per molecule.  Suitable fatty alcohols are cetyl, stearyl and ceryl alcohols.  The Raney nickel may constitute 20-50 per cent by weight of the suspension.  In examples, Raney nickel catalyst is prepared by extracting nickel - aluminium alloy powder twice with sodium hydroxide solution and washing with water, 94 per cent alcohol, and anhydrous alcohol; the catalyst is mixed with cetyl alcohol or stearyl alcohol at 65 DEG  C. and the mixture cast in moulds.  Before use, the fatty alcohol is dissolved out from the catalyst with ethyl alcohol or methyl alcohol.  The Provisional Specification refers to U.S.A. Specification 1,563,587.