baber/WOPTO huggingface dataset:
Patent GB-1066877-A (GB)
Title: Polymerisation process
Inventor: SQUIRE JOHN MANSEL
IPC: C08F10/00
Filed: 1965-05-06
Abstract: A continuous process for the production of amorphous olefine polymers comprises passing alpha olefines and an inert diluent into a reaction zone and adding a Friedel-Crafts catalyst in discrete catalytic quantities at intervals to the reaction zone, the quantities being sufficient to cause and/or maintain polymerization but being insufficient to cause more than a moderate exotherm of not more than 20 DEG  C.  Preferred olefines contain 4 to 12 carbon atoms.  The catalyst may be aluminium chloride or bromide, stannic chloride, boron trifluoride or hydrogen fluoride, and may be dissolved in a solvent, e.g. ethyl chloride.  The diluent, which may be a solvent for both the monomer and the polymer, may be pentane, hexane or heptane. Catalyst amounts in the range 0.05 to 5 weight per cent of the monomer may be added at intervals of 5 to 20 minutes.  In examples 4-methylpentene-1 is polymerized in pentane with the periodic addition of a solution of aluminium trichloride in ethyl chloride.
Patent GB-651925-A (GB)
Title: An improved method of welding metal tubes
IPC: B23K33/00
Filed: 1948-07-16
Abstract: 651,925. Uniting by fusion. AERO DESIGNS, Ltd., and SUPPANCIC, G. 0. July 16, 1948, No. 19142. [Class 83 (iv)]  A method of jointing tubes A, B comprises cropping the end of the tube A at C, pinching this end and welding the side of the deformed part to the other tube B. The deformed part  may conform to the other tube B and the cropping may be at an angle so that by aligning the chopped end C with the other tube axis E, E a guide for correct positioning is obtained. In a modification the deformed end may be opened out and a reinforcing slip (Fig. 6, not shown), may be inserted. The pinching may be performed during the cropping of the tube or after the tube is cut.
Patent GB-607861-A (GB)
Title: Carburetters
IPC: F02D9/00
Filed: 1944-10-05
Abstract: 607,861. Spray carburetters. BENDIX AVIATION CORPORATION. Oct. 5, 1944, No. 19146. Convention date, Aug. 25, 1943. [Class 7 (iii)] In a carburetter having a throttle-controlled induction passage 12 and a fuel conduit 26 having a metering jet or restriction 50 therein leading into the induction passage through a fuel valve 53 controlled by a diaphragm 43 subjected on one side 44 to the pressure of metered fuel and on the other side 46 to a pressure due to a connection to the induction passage, the fuel valve is controlled solely by the difference between the pressure of the metered fuel and the pressure due to the connection to the induction passage supplemented by a spring 62 acting in opposition to the pressure of metered fuel, the connection to the induction passage including a conduit 70, 72 having a calibrated restriction 80 therein leading to the throat of a venturi 74 in the induction passage. Circumferentially arranged holes 22 in the induction passage direct air against the fuel issuing from a nozzle 52 leading from the valve 53. The compression of the spring 62 is adjustable and arranged to just balance the pressure of the fuel in the chamber 44 at the other side of the diaphragm so that when there is a suction in the induction passage the valve 53 is opened and fuel is supplied. For slow running a branch pipe 84 is connected to a slot or holes 92, 94 adjacent the throttle butterfly valve and leads into the pipe 70. A slow running adjusting screw may be provided to control the hole 92. There may be one or more orifices 50 in the fuel supply to the chamber 44 or an adjustable orifice can be provided. There may be more than two holes as 92, 94 for slow running. The adjustable orifice may be controlled automatically according to the power being produced by the engine.
Patent GB-771847-A (GB)
Title: Improvements in or relating to a blowing agent for the production of cellular plastics
IPC: C08J9/10
Filed: 1955-07-04
Abstract: A blowing agent for the production of cellular plastics comprises hydrazine mononitrate and 1-15 per cent, based on the mononitrate, of ferrous sulphate, ferrous ammonium sulphate or molybdenum trioxide as activator.  Specified plastics are alkyd and urea-formaldehyde resins, polyacrylonitrile, polystyrene, polyvinyl chloride, vinyl chloride-acetate copolymer, cellulose esters, e.g. cellulose acetate and cellulose ethers, e.g. ethyl cellulose.  Plastisols are particularly preferred and dioctyl phthalate and tricresyl phosphate are specified plasticisers with a basic lead sulphate as stabilizer. The plastic may be blown by heating to 300-400 DEG  F.  U.S.A. Specification 2,621,161 is referred to.
Patent GB-487984-A (GB)
Title: Improvements in or relating to radio direction finders
IPC: G01S1/02
Filed: 1937-07-12
Abstract: 487,984. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. July 12, 1937, No. 19311. Convention date, July 15, 1936. [Class 40 (v)] In a continuously-rotating direction-finder, signals are fed periodically to a pair of headphones which are used for checking the " minimum " signal strength against the directional bearings given by the visual indicator. As shown, the main indication is thrown by a mirror O from a source of light L on to a screen Sch, all of which rotate with the aerial A. A second channel through R is normally blocked, but is opened periodically by a commutator switch B, M which applies an unblocking voltage from a battery D, so that the pick-up signal can reach the headphones. The brush B is movable and indicates the line of hearing when the signals heard in the phones K fall to a minimum.
Patent GB-1013001-A (GB)
Title: Loading apparatus for refuse trucks
IPC: B65F3/04
Filed: 1964-05-08
Abstract: 1,013,001. Tipping dustbins. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. May 8, 1964 [May 24, 1963], No. 19379/64. Heading B8E. A loading apparatus for refuse trucks with a frame for accommodating refuse holders is characterized by auxiliary means enabling differently shaped refuse holders to be used. Fig. 1b shows a frame 2 pivotally mounted on lifting arms 3, 4 with lifting means 5 so that a refuse holder 6 can be picked up, raised, emptied into a container 1 on a refuse truck (not shown) and set down. Fig. 1a shows how a hod 13 may be attached to the frame 2 so that, for example, a refuse collecting sack 19 may be conveyed into the container 1. Figs. 3, 4 show a frame designed basically to accommodate a large angular refuse container 22 by its rim 23 on rollers 21 on a lower yoke 20. To empty the container 22 the lower yoke 20 is raised to clamp the rim 23 against an upper yoke 24 to secure the container 22 for further lifting, emptying and subsequent lowering. To adapt the frame to handle two standard cylindrical holders 25, 26, pairs of lower round yokes 27 and two upper pairs of round yokes 28, 29 are pivoted into the frame, so that the holders 25, 26 may be clamped between yokes 28, 29 by raising the yoke 20. The two holders 25, 26 are then emptied in the same manner as described with respect to the large angular refuse holder 22.
Patent GB-257718-A (GB)
Title: Improvements in caoutchouc compositions
IPC: C08L7/02
Filed: 1925-07-31
Abstract: 257,718. Biddle, A. July 31, 1925. Sizes consist of india-rubber, gutta-percha, balata, or like latex, at carbohydrate derived from the cassava plant such as tapioca meal, and lime. Casein and filling materials may also be added.
Patent GB-465989-A (GB)
Title: Improvements in or relating to supporting means for the sterilization of gloves
IPC: A61L2/00
Filed: 1936-07-14
Abstract: 465,989. Supports for gloves. LAUTENSCHLAGER, F. July 14, 1936, Nos. 19520 and 19521. Convention dates, Nov. 21, 1935 and Feb. 24, 1936. [Class 141] A support for an indiarubber glove while being sterilized is made of artificial resin or other poor conductor of heat, is of flat or slightly curved cross-section and consists of two or more parts movably or releasably connected together at or near the wrist end of the support. Fig. 1 shows a thumb member 6 pivoted by a rivet 7 to the main plate 1 provided with fingers 2, 3, 4, 5. Grooves 9 may be provided in the plate 1. In a modification, a slot is provided in the thumb member which is thus free to slide on the rivet 7. In another modification, the rivet is replaced by a conical pin on the thumb member engaging a hole in the main plate. Fig. 6 shows three members 14, 15, 16 held together by a box-like member 18 provided with ribs to engage grooves 19 in the members. In a modification, the box-like member is open at one end so as to slide edgewise on to the members ; in a further modification, the box is of substantially cylindrical form to engage a bead on the members. In another modification, a sleeve is slidden on to the members in a longitudinal direction.
Patent GB-282846-A (GB)
Title: Improvements in or relating to filters and strainers for liquids
IPC: B01D25/00
Filed: 1927-04-29
Abstract: 282,846. Coates, D. A. April 29, 1927. Strainers comprising grids or gratings. - A strainer, formed of wire coiled to the shape of a cylinder or cone, is provided with special means for tensioning or compressing the coil to vary the distance between the turns. The wire may be crimped, indented or rolled to form raised projections. One arrangement, Fig. 5, comprises a container b and body a with inlet and outlet passages a<1> - - a<4> for the liquid, the container and body being held together by a screw c, and the coil e being under compression due to a nut d. The strainer, Fig. 6, is formed of a twostart coil f with a bottom-piece g, the wires at the top being bent to form cams f<1> and a handle f<2>. A stirrup-shaped latch h is pivoted on the part g and has projections h' which engage with the cams f<1> and by their position determine the degree of compression of the coil. The liquid to be strained is poured into the cup formed by the coil and strains outward into a receiver placed beneath.
Patent GB-593143-A (GB)
Title: Improvements in and relating to filament connections for electric lamps
IPC: H01K1/16
Filed: 1944-10-11
Abstract: 593,143. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 11. 1944, No. 19605. Convention date, Oct. 11, 1943. [Class 39 (ii)] In attaching the lead-in wires to the fllament of an electric lamp, more particularly of the high-wattage type, the filament 24 is provided with composite end portions each comprising a coil 31 and straight core 28 extending therethrough, with portions of the coil and core respectively extending in side - by - side relation transversely across the associated lead-in wire 21 to which they are individually welded at different points along its length. As shown, the outer end portions of the filament coils 24 terminate in straight end legs 28 which form cores to receive separate coils 31 of heat-resisting metal, such as tungsten, molybdenum or an alloy thereof, which fit closely thereon and have an open coiled portion 32 that can be arranged beside the end leg across the lead-in wire 21 to which they are both welded individually. Alternatively, the coils 31 are integral with the filament coils and fit over straight lengths of wire that form the cores. Additional support for the filament is provided by an anchor wire 26 which is mounted on a glass rod 22 carried by short end wires 23 welded to the lead-in wires. Specifications 515,091 and 526,924 are referred to.
Patent GB-275224-A (GB)
Title: Improvements in or relating to projectile fuses
IPC: F42C1/06
Filed: 1927-07-23
Abstract: 275,224. Lebensart, S. July 28, 1926, [Convention date]. Projectile fuzes. - Two inertia members N, Z are mounted between concave seats G, H1, H2, so as to be moved towards each other bv the shock of discharge, or throwing in any direction, and are adapted, when this occurs, to displace a coiled spring ring R from the safe position over a conical ring W on to a conical part Z2 of the member Z. During flight, the spring ring contracts, and passes down the conical parts Z2, Z1 of the member Z to the conical surface VI of a sleeve V. This movement of the spring ring forces the members N, Z away from each other back to their original position, and this is made to operate a friction igniter for a time fuze (not shown) or to arm a percussion fuze which, as shown, may be constituted by the same pair of members N, Z, provided for this purpose with a firing pin A and a percussion cap B. When the members N, Z approach each other on discharge, the spring ring R abuts against a shoulder Z<3> on the member Z, preventing the firing pin A reaching the percussion cap B; but on impact, the ring R, having passed down to the surface V<1> of the sleeve V, leaves the members N. Z free to complete their approach to make the firing pin A strike the percussion cap B. During this approach, the spring ring R drops over the edge V2 of the sleeve V on to the conical part N5 of the member N; and if the percussion fuze missfires, the spring ring afterwards rides down the conical part N5, and by bearing against the edge V2 of the sleeve V forces the member Z awav from the member N. Finally, the spring ring lodges itself between the end V2 of the sleeve V and the shoulder N8 of the member N. Henceforth, the members N, Z can no longer approach each other, and the fuze is disarmed. Premature shock immediately on or after discharge also disarms the fuze. Such a shock causes the spring ring R to jump over the edge W2 of the conical ring W and over the shoulder Z3 into a groove Z4 from which it can no longer be dislodged and wheret it prevents the firing pin A reaching the percussion cap B. Specification 260,318 is referred to.
Patent GB-210025-A (GB)
Title: Improvement in foundry moulding machines
IPC: B22C15/20
Filed: 1923-07-31
Abstract: 210,025. Beardsley, E. O., and Piper, W. F. July 31, 1923. Moulding-machines of the wad-projecting type as described in Specification 177,131, have the projector arranged to travel on a track forming part of the machine. The projector 30 is driven by a short shaft from a motor 25 and is carried together with a sand-feeder 49 by a yoke 18 swivelling on a sleeve 20 carried by a frame 16 depending from wheels 15 running on tubular guides 12 carried by a sleeve 9 swivelling on the column 8. Sand is supplied at 32 to a belt-conveyer running the full length of the guides and is discharged, by a deflector 46 carried by the frame 16, through the sleeve 20 and shoot 48 to the feeder 49.
Patent GB-778269-A (GB)
Title: Improved sintered metal articles made by a powder metallurgy process
IPC: C22C32/00
Filed: 1955-07-07
Abstract: A sintered metal article is made from a powdered metal mix comprising 0.5-25 per cent by weight of a Ti/Al alloy containing 30 per cent-90 per cent Ti-6.5 per cent C. -2.5 per cent die lubricant the balance being Fe base alloy, Cu or Cu base alloy, Zn, Al, Mg, Ni, Pb, or an alloy of any of these.  Further elements which may be present are-Mn, Si, Be, Co, P and C.  The Ti/Al alloy can be made by placing the components in a graphite crucible and melting at 2700 DEG -2950 DEG in an inert atmosphere (all degrees are given in the Fahrenheit scale).  The invention has particular reference to piston rings and bearings.  In the manufacture of piston rings the powder is briquetted at 20,000-120,000 p.s.i. (preferably 30,000 p.s.i.), and sintered at 1900 DEG -2300 DEG  for 4 mins.-1 1/2 hours.  ( 1/2 -1hr.) in a non-oxidizing atmosphere.  The metal may be hot or cold worked e.g. by sizing at 40,000-150,000 p.s.i.  Alternatively the powder may be briquetted at 30,000-90,000 p.s.i. pre-sintered at 1600 DEG -2100 DEG  for 10 mins. -2hrs.; sized at 40,000-150,000 p.s.i.; sintered for 15 mins.-2hrs. at 1900-2250 DEG ; cold sized at 40,000-150,000 p.s.i. and heat-treated at 800-1100 DEG  from 30-60 mins. to give a tempered martensitic structure.  A bearing is made by briquetting at 20,000-120,000 p.s.i. (40,000-60,000) and sintering at 1300 DEG -1950 DEG  for 4 mins.-2hrs. If an appreciable amount of Ni is included in the mix, a solution heat treatment for 1-8hrs. in a non-oxidizing atmosphere at 600 DEG -1400 DEG  is given.  Preferably this treatment comprises 5 hrs. at 1400 DEG  followed by a water- or oil-quench and aging at 600 DEG  for 5hrs.  The aging may take place at room temperature.  The mixes may be sintered on to supporting surfaces and then may be rolled with or without further treatment. The powder sizes should lie within 50-325 mesh.
Patent GB-147705-A (GB)
Title: Improvements in screw and like propellers
IPC: B63H1/16
Filed: 1920-07-08
Abstract: 147,705. Coninck, M. B. de. May 6, 1919, [Convention date]. Screw and like propellers.-A screw propeller is formed of a number of thin blades d.oubleconvex in section and of decreasing breadth from the boss to the tip, the blades being stayed by a number of rings of double-convex section. A number of elements forming the blade a, Fig. 2, are stayed by rings b. The angle a of each elements a', Fig. 4, of a blade is small and proportionate to the angle of attack for a small slip.
Patent GB-1040581-A (GB)
Title: Register mechanisms
Inventor: DEACON LIONEL OAKLEY
IPC: G06M1/16
Filed: 1963-05-20
Abstract: 1,040,581. Counting apparatus. CHAMBERLAIN & HOOKHAM Ltd. May 19, 1964 [May 20, 1963], No. 19891/63. Heading G4D. In a counter with conventional Geneva transfer mechanism the driven disc 13 of the lowest denomination has a recessed portion 13a not engaged by the driving pinion 12. The disc 13 carries a weight 14 which passes its highest point at the same time as the recessed portion 13a comes opposite the driving pinion. A snap movement then assists the transfer action. The digits 1-9 are more closely spaced than 9 and 0.
Patent GB-254129-A (GB)
Title: Method and device for adjusting and testing stroboscopically electric meters
IPC: G01R35/04
Filed: 1925-08-07
Abstract: 254,129. Fichter, R. M. Aug. 7, 1925. Stroboscopic apparatus for adjusting and testing electric meters and other rotating apparatus is arranged to interrupt periodically at an adjustable frequency the visual ray connecting the operator's eye and the rotating part of the apparatus tested, which part is provided with equidistant mark ings. Fig. 1 shows ar apparatus arranged as a mask to be worn by the operator as shown in Fig. 5, black cloth borders 20 being provided for excluding light. A frame 1 having a notch 10 for the nose carries a blade 3 clamped at one end 2 and carrying at its other end a plate 4 having two slits 5, 6 which are situated opposite. windows in the frame. These windows are closed by stationary slotted plates, the distance apart of which is adjustable by means of a right and left handed screw. The blade 3 carries a sliding weight 16, the position of which may be adjusted in accordance with a scale marked on the blade. An additional weight in the form of a graduated nut moving along a micrometric screw carried by the weight 16 may be provided for fine adjustment. The vibrations of the blade 3 are maintained by means of an electromagnet 21 provided with a trembler 23 and surrounded by a shortcircuited ring 24. Instead of using a trembler, the electromagnet may be connected in series with a standard diapason having a frequency equal to, or a fraction of, the natural frequency of the oscillating blade. One standard diapason may synchronize several stroboscopic devices. The vibrating blade may be calibrated to indicate the percentage error of the meter. For testing a number of meters, these are disposed on a holder in front of which is a slide, on which the stroboscopic apparatus may be slid so as to be brought opposite each meter in turn. The apparatus may be monocular instead of binocular. A small lamp may be provided on the apparatus for lighting up the rotating part of the meter to be tested. The mask may also be provided with lenses and prisms for increasing the field of view and facilitating binocular vision. In making a test the frequency of the vibrating blade is determined either by calculation or by adjusting the weight 16 until markings on the rotating part of a standard meter appear stationary. The meter under test is then observed and adjusted until the marks on its rotating part appear stationary. The speed of rotation is then either that corresponding to the frequency of the blade or a multiple or submultiple thereof. A scale may be drawn on the glass or other fixed part of the meter near the armature in order to facilitate distinction between the fundamental and harmonic frequencies.
Patent GB-727496-A (GB)
Title: Improvements in or relating to electrical suppressor capacitor arrangements
Inventor: DAVIDSON RONALD
IPC: H01G4/35
Filed: 1952-08-07
Abstract: 727,496. Interference suppressor capacitors. DUBILIER CONDENSER CO. (1925), Ltd. July 20, 1953 [Aug. 7, 1952], No. 19912/52. Class 37. A suppressor capacitor of the wound type has its two electrodes connected respectively in series with the leads of a double-pole interfering circuit and has a connection to each electrode brought out at each end. A core of H.F. magnetic material may be used to increase the mutual inductance effect between the coiled electrodes which thus form a two-wire transmission line. It is preferable to connect the outer ends of the electrodes, where the inductance/capacitance ratio is greatest, to the source of interference, and to take connections from the ends of one electrode from opposite edges of the roll to give more even H.F. current distribution. A coreless capacitor with these features is shown in Fig. 3, the roll G being positioned and sealed in a preferably metal cylinder H by an annulus HI of insulating material, the cylinder ends being formed by insulating discs H2 with tubular metal inserts H3 soldered to terminals A2, B2. In Fig. 6 (not shown) the condenser is wound on a magnetic dust core or on a core of magnetic ceramic material, the electrodes being connected to separate conducting rings on the insulating core to which the lines are soldered, while in Fig. 7 the lines are threaded through diametral holes F1, F2, F3, F4 in the core D, to the electrodes. In all embodiments the dielectric may be impregnated and the assembly encased in moulded insulating material. Specification 607,394 is referred to.