baber/WOPTO huggingface dataset:
Patent GB-631719-A (GB)
Title: Improvements in or relating to aqueous emulsion paints
IPC: C09D5/02
Filed: 1947-09-24
Abstract: A paint is made by mixing a pigment with an aqueous emulsion containing acidified petroleum residues.  These are the by-products obtained by treating lubricating oil fractions with alkali or alkaline earth metal oxides, hydroxides or carbonates to neutralise the naphthenic acids present, followed by distillation to separate the acid-free oil.  The residue contains the salts of naphthenic acids, resinous bodies and mineral oil and is treated, if desired in solution in an organic solvent, with an aqueous inorganic acid, e.g. sulphuric acid or oleum sludge.  The aqueous phase is separated, the sulphates removed if necessary by filtration and dark viscous liquids remain, containing free naphthenic acids, resinous bodies and oil. Emulsions are made by agitating with water, preferably in the presence of a base, e.g. alkali metal or ammonium hydroxide, morpholine or triethanolamine. Additional emulsifying agents such as potassium rosinate and naphthasulphonates, stabilizers such as glue, gelatin, casein, agar, methyl cellulose, carragheen moss or alginic acids or its salts and a preservative, e.g. phenol, may be added. The pigment is added in the form of a slurry which may contain a wetting agent such as that known under the Registered Trade Mark "Teepol" and an emulsion stabilizer.  Specified pigments are lithopone, titanium dioxide, yellow ochre, iron oxide, whiting and kaolin. Insecticides and fungicides may also be added.
Patent GB-658470-A (GB)
Title: Improvements in or relating to electrical switch contacts
IPC: H01H1/0237
Filed: 1949-10-10
Abstract: 658,470. Switch contacts. IGRANIC ELECTRIC CO., Ltd. Oct. 10, 1949, No. 25951. Convention date, Oct. 11, 1948. Drawings to Specification [Class 38(v)] [Also in Group XXII] A contact element is formed from sintered powdered materials comprising silver, zinc oxide, and one or more of the following metallic compounds: silver iodide, silver bromide, silver chloride and lead hydroxide. The proportions are preferably in the ranges of 75 per cent to 95 per cent by weight of silver, 4 per cent to 20 per cent by weight of zinc oxide, and 1 per cent to 5 per cent by weight of the metallic compound. The manufacturing processes (see Group XXII) are similar to those of Specification 588,652, and several examples of mixtures are given. U.S.A. Specification 2,307,668 is referred to.
Patent GB-600425-A (GB)
Title: Internal combustion engine with double-acting crosshead-scavenge pump
IPC: F02B33/00
Filed: 1945-10-05
Abstract: 600,425. Crosshead scavenge pumps. PETERSEN, O. Oct. 5, 1945, No. 26038. Convention date, Jan. 7, 1944. [Class 7 (ii)] An internal-combustion engine has a piston crosshead 5 working in a cylinder guide 9 forming a double - acting scavenge pump closed at the top by a head 27, containing a stuffing - box joint for the piston-rod 4, and closed at the bottom by a sliding plate 28 containing a seal which, together with the said sliding plate, forms a compression head whilst the connecting- rod 6 oscillates. The inlet ports 10 and 11 feed the top and bottom chambers of the pump respectively and the pressure valves 12 and 13 communicate with a common duct 14 communicating with the scavenge ports 15 of a doubleacting internal - combustion engine using uniflow scavenging through poppet valves 16 and 17 which may be operated from a common cam-shaft 22 or from the engine crank-shaft 8. The valve 17 is bored to allow the passage of the piston-rod 4 and is returned to its seat by springs 26. The engine may also be of the single-acting type and may employ uniflow or transverse scavenging.
Patent GB-1100185-A (GB)
Title: Improvements in or relating to distributors
Inventor: HARGREAVES DEREK BURTT
IPC: A01C7/16
Filed: 1965-06-21
Abstract: 1,100,185. Distributing road chippings. "SISIS" EQUIPMENT (MACCLESFIELD) Ltd. 16 Sept., 1966 [21 June, 1965], No. 26057/65. Heading A1D. A distributer particularly for stone chippings comprises two smooth rollers 14, 15, the roller 15 being mounted on pivoted levers 17 which are controlled by springs 19 so that the rollers are urged into contact with each other. A rod 25 which is adjustably mounted at the mouth of the hopper prevents the weight of the material in the hopper from bearing on the rollers.
Patent GB-279814-A (GB)
Title: Improvements in sifting apparatus
IPC: B07B1/18
Filed: 1927-10-03
Abstract: 279,814. Anger, J. R. Oct. 26, 1926, [Convention date]. Rotary sieves.-Apparatus for separating nightsoil, &c. into its constituent elements comprises a rotating perforated drum 2 through which a current of air is blown from a pipe 8 in the direction of movement of the material. The drum is enclosed in a casing 6 provided with shoots 7 by which the cinders are discharged. The heavy materials such as stones drop over the end of the drum at 13. The air current carries the lighter material forward, paper &c. being deposited at 15 and the putrescible matter falling through a reciprocating grid 9 on to a slide 11.
Patent GB-361454-A (GB)
Title: Improvements in or relating to concrete paving
IPC: E01C9/00
Filed: 1930-12-18
Abstract: 361,454. Concrete paving. MASON, H., 5, Moor Lane, Bolton. Dec. 18, 1930, No. 26134. [Classes 20 (iv) and 107.] Concrete paving is formed by casting concrete on to a course b of sheet material having arranged on its surface a number of dividing strips f, g of wood, paper, metal, &c., and grooving the top surface of the concrete down to the strips, as shown at h, Fig. 3. The base course b may be of paper. The strips may be tapered to permit easy removal of the concrete slabs cast between such strips.
Patent GB-261674-A (GB)
Abstract: 261,674. Cross, H. P. Aug. 13, 1925. Stands or supports.-Brackets 1 are made with slotted cross bars a, b, the former adaptel to support a jack 2 to receive the axle A of a vehicle, and the latter to carry a support 4. One end of a slotted beam 6 rests on the support 4. By turning the nuts 5 the beam is raised to bear against the frame of the vehicle and thus take the weight off the springs. The brackets may be detachably mounted on castors 9 by means of frames 10 and bogie half-frames 8. Slotted bars 12 may besecured to the tops of the brackets as shown in Fig. 13, the side bearing- brackets on the engine being bolted to them. The two halves of the bogie may be clipped together by pins 13 and latches 14 to form a complete bogie, Fig. 12, for use as a support for a damaged wheel.
Patent GB-821780-A (GB)
Title: Improved tank linings
IPC: B29C63/26
Filed: 1957-08-20
Abstract: A container for the handling of corrosive fluids has an elastomeric lining comprising a base rubber and a semi-permeable membrane overlay bonded thereto.  The base rubber may be natural rubber or the cis-1,4-polymer of isoprene, which may contain up to 15% of the trans polymer.  The overlay may be of polychloroprene, rubbery copolymers of butadiene and styrene or acrylonitrile, or of chlorosulphonated polyethylene.  The layers may be applied as fluids by spraying or painting.ALSO:<PICT:0821780/IV (a)/1> A container suitable for corrosive fluids has attached to its walls 12 an elastomeric liner comprised of a base rubber 14 having a rubbery, semipermeable membrane overlay 15 bonded thereto.  The base rubber 14 may be natural rubber or a 1,4-isoprene polymer. The overlay 15 may be polychloroprene, a rubbery copolymer of butadiene and styrene, chlorosulphonated polyethylene, or a rubbery copolymer of butadiene and acrylonitrile.  According to an example, a sheet of natural rubber containing 2% by weight of sulphur is calendered to a thickness of 0.025 to 1.0 inches, a layer of vulcanizable neoprene composition is calendered on to the natural rubber to a thickness of 0.005 to 0.125 inches, the calendered stock is adhered to the inside of a metal tank, and the lining then vulcanised by heating with steam at a temperature of 275 DEG  F. and pressure of 30 p.s.i. for four hours.
Patent GB-690713-A (GB)
Title: Improvements in and relating to storage and advancing reels particularly for the drying of textile threads, fibres, filaments and the like
Inventor: WILLIAMS HAROLD MALCOLM GORDON
IPC: D01D10/04
Filed: 1950-10-27
Abstract: 690,713. Drying threads. COURTAULDS, Ltd. Oct. 26, 1951 [Oct. 27, 1950], No. 26242/50. Class 34 (i) [Also in Group IX] A thread-storing and advancing reel comprises a cage of cantilever construction mounted for rotation on a hollow shaft 1, the cage being formed by two reel members 2, 3 each provided with a number of bars 9, 13 which interdigitate to form a substantially cylindrical thread-supporting surface within the cage, and means, e.g. a plate cam 14 acting through rollers 15 on the rods 10 of the bars 13 which are carried by the reel member 3 eccentrically of the reel member 2, causing relative movement of the bars 9, 13 during rotation of the reel to cause them to co-operate to advance in a number of generally helical turns thread 19 introduced into the cage by way of the hollow shaft 1. The reel member 2, which is attached to the shaft 1 at 4, 5 is driven by a gear 8 and in turn, drives the reel member 3 through pin and push connections 20, 21. The bars 13 are pivotally attached to the rods 10 which are carried on pivot spindles 11 and spring urged at 17. Hot-air may be blown into the cage or a heating coil may be placed around it for drying the thread therein. In a modification, the reel member 3 is replaced by a cylinder 22 (not shown) mounted eccentrically and askew with regard to the member 2 and the bars carried thereby are secured in pairs to retaining springs riveted to the cylinder. The Provisional Specification discloses a modification similar to that in Fig. 1 but bars 10 and the eccentric member 3 are not pivotally mounted. Specifications 489,781, 527,075, [Group IV], 608,078 611,919 and 616,276, [all in Group IV (a)], are referred to.
Patent GB-282712-A (GB)
Title: Improvements relating to thermionic valves or electron discharge tubes
IPC: H01J19/40
Filed: 1927-10-05
Abstract: 282,712. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Dec. 30, 1926, [Convention date]. Vacuum tubes. - A valve has a filament, one or more anodes of small dimensions, and one or more shields, which are maintained at a constant potential, and surround one or more grids, the shields acting as regards the shielding effect as continuation surfaces of the anode. As shown, a short anode e is mounted around a filament a and a grid d, and shields f, g of the same cross-section as the anode extend above and below the anode and are supported on it by means of glass beads k. A support c for the upper end of the filament also carries the shields and maintains them at the potential of the filament. A second support p is secured to the shield f. The anode lead may be taken to a contact on the cap or through the opposite end of the bulb. The shields serve to prevent electrostatic lines of force from passing from the grid to the outside of the anode, and also to prevent the passage of electrons from the filament to the bulb. In a modification, a shield surrounds the anode and extends beyond it on one or both sides. Apertures are formed in the shield around the anode to facilitate removal of gas by high frequency heating.
Patent GB-783284-A (GB)
Title: An improved instantaneous-grip vice
IPC: B25B1/12
Filed: 1954-09-13
Abstract: 783,284. Vices. SCHMIDLIN, J. F., and SONNTAG, F. Sept. 13, 1954 [Sept. 11, 1953], No. 26383/54. Class 61. Relates to vices of the kind in which the movable jaw structure can be rocked with respect to the fixed jaw structure for quick disengagement of the screw 9 from the fixed threaded member 6. The present invention includes means for preventing the screw from disengaging the member 6 under operational stresses. In the vice shown the fixed jaw 1 has side flanges 3 spanned by plates 4, 5, the plate 5 serving to support the member 6. The moving jaw 2 also has side flanges 8 from the lower end of which projects side plates 8a which are guided between the flanges 3 and which are secured to a shank 7. The lower surface of the shank 7 is of arcuate form to fit over the screw 9 with a clearance sufficiently small to prevent the screw from disengaging the threads of the member 6 under ordinary operating conditions. One end of the screw has a circumferential recess to receive a locating pin 11, and the other end, carrying the operating lever 10, is mounted in the shank 7. For quick adjustment the moving jaw structure is rocked about the forward edge 12 of the plate 5 to disengage the screw from the member 6, the extent of the rocking movement being limited by an inclined face of the plate 4.
Patent GB-945707-A (GB)
Title: Process for the production of conjugated diolefines
Inventor: BARCLAY JOHN LYNN
IPC: C07C5/48
Filed: 1961-07-21
Abstract: Butadiene is obtained by passing a mixture of butene-1 and butene-2 containing a major proportion of butene-1 in the vapour phase with oxygen over an oxidation catalyst at elevated temperature.  Specified catalysts are bismuth tungstate, bismuth molybdate, a mixture of tin and antimony oxides, and phosphoric acid on alumina or tin oxide. The butene mixture may contain 55-95% vol. of butene-1 and the reaction mixture 1-20% butenes and 1-21% oxygen together with steam or nitrogen and reaction is effected at 200-500 DEG  C. with a contact time of 1-30 seconds.
Patent GB-628701-A (GB)
Title: A device applicable to flushing cisterns for charging the flushing water with disinfecting or deodorant substances
IPC: E03D9/03
Filed: 1947-10-01
Abstract: 628,701. Disinfecting. BEAMISH, V. W. Oct. 1, 1947, No. 26516. [Class 26] A device for attachment to a flushing cistern below the water level therein consists of a hollow body having a cage 17 therein to receive a solid block 29 of watersoluble disinfectant or deodorant, said hollow body having a lid 20 and a pipe 21 threaded for attachment to the cistern. Said hollow body. is built up from a wall member 12, preferably of glass within cupped members 10 and 11 clamped together in associatipn with washers 13, by means of rods 14 screwed into bosses 15 in the cupped member 10. The cupped member 11 has an annular wall 16 on which is placed the removable lid 20. Said annular wall in conjunction with the bosses 15 acts to locate the cage 17 comprising a solid base 18 and an annular wall 19 of wire mesh or other perforated material. The cupped member 10 is formed integrally with the pipe 21.
Patent GB-1293115-A (GB)
Title: Improvements in thread-forming members and methods and apparatus for making the same
IPC: F16B25/00
Filed: 1971-04-19
Abstract: 1293115 Self-tapping members; rolling screw threads RESEARCH ENG & MFG Inc 19 April 1971 [11 April 1970] 26548/71 Headings B3M and B3N  A thread-forming member 6a has an exterior surface surrounding a longitudinal axis, said surface having a thread with a root crosssection that is a regular polygon formed by an odd number of intersecting ares, 62, 64, 66, 68, 70, 72, 74, and a cross-section at the crest that includes an equal number of longer arcs 80, 82, 84, 86, 88, 90, 92, that are respectively concentric with the arcs at said root cross-sections, the centre of each circular arc at said root and its associated concentric circular arc at the crest being substantially at the intersection of the two circular arcs at the root that is most remote from said two concentric arcs, e.g. intersection 65 for arcs 66, 84, and thread swaging lobes 81. 83, 85, 87, 89, 91, 93 joining said crest crosssection arcs. The lobes are arcs each with a radius r substantially equal to the depth of the thread. Such a member is rolled by standard dies that have grooves 17a extending transversely to the direction of movement of the dies. The depth of the grooves reduces from the entry end of a shank into the dies and are over between a half and two thirds of the length of the dies. These grooves cause a blank positioned between dies as shown in Fig. 17 to rotate about point 50, rather than centre 60, until the blank is seated in groove 17a<SP>11</SP>. A cylindrical rotating die co-operating with a fixed arcuate die or two cylindrical dies could be used.
Patent GB-1472326-A (GB)
Title: Receiving control apparatus
IPC: H04B1/16
Filed: 1974-06-14
Abstract: 1472326 Radio receiving apparatus; transistor gating circuits THOMSON CSF 14 June 1974 [14 June 1973] 26576/74 Headings H4L and H3T In a receiver which enables special messages when transmitted to be detected and reproduced in preference to normal broadcast programmes, a manually operable facility enables the special message to be switched off and the normal programme restored, while the fact that a special message is being received is indicated during such a switch off. The arrangement may be used for example in a car radio adapted to receive special warning reports (e.g. road conditions) when it is not desired to listen to them (e.g. when the car is stationary). When a special message is received it is detected at 1 and passed via a normally closed switching circuit 20 to operate a relay 4, which alters the normal connection between a loudspeaker 2 and a broadcast receiver 5 such that the loudspeaker receives the special message via the line 7. The switch 20 remains closed by the action of a bi-stable 21, which operates such that the collector of a transistor 41 and thus the base of the transistor 40 are at a high potential. The signal from the detector 1 is applied to close the transistor switch 24 such that a potential source 28 is applied to the lamps 270, 272, 274 so that they light. The signal from 1 and that on the line 60 from the output of the switch 40 are applied to an AND gate 44. When the switch 40 is closed, a "1" is delivered to an inverter 43 whose zero output keeps the transistor switch 47 open, and no potential is applied to the lamps 271, 273, 275. If it is desired to switch out the special message detected at 1 the switch 29 is momentarily pressed to apply the zero signal from the inverter 43 to the base of transistor 42 of the bistable. This causes the switch 20 to be switched off. The AND gate 44 then delivers zero and the resulting "1" from the inverter 43 switches on the transistor 47, such that the lamps 271, 273, 275 are intermittently pulsed by a device 26 energized from the source 28. If the switch 29 is again pressed, the circuit is restored to its former condition with the switch 40 on. If no image signal is detected at 1, the switch 45 is turned off and none of the lamps light.
Patent GB-1341254-A (GB)
Title: Methods for producing a valve sub-assembly and a valve and  sub-assemblies and valves resulting from said methods
IPC: B29C39/00
Filed: 1971-04-19
Abstract: 1341254 Casting composite articles PONTA-MOUSON SA and PLAST-INDUSTRIE 19 April 1971 [24 April 1970] 26585/71 Heading B3F [Also in Divisions B5 and F2] A metal valve body may be cast around a valve sub-assembly IV comprising a valve closing element, rubber sealing rings, and rigid rings. The sheath is cut around the stem at 40 held together by a polyvinyl chloride sheath 6c shrunk about the sub-assembly.
Patent GB-860529-A (GB)
Title: Improvements in and relating to a method and apparatus for filling pre-cooled material into a row of refrigeration cells
IPC: A23G9/28
Filed: 1959-08-04
Abstract: 860,529. Fitting containers. HOYER, O. G. Aug. 4, 1959, No. 26651/59. Class 125(2). In a machine of the type having a row of juxtaposed pumps for the simultaneous delivery of pre-cooled semi-liquid material into a row of refrigeration cells 2, the material before passing to the cells, is used for cooling the ends of the row of pumps to prevent the temperature of the outermost pumps from rising above the gelation point. As shown, the machine is a rotary ice-cream brick refrigerator of the type described in Specification 744,583, the cells being mounted in radial rows on a table 1 ; three types of ice-cream are injected into each cell 2 by three tubes 22 fed with different material from gear-pumps 9 mounted on a common shaft 12. The pumps are fed from three juxtaposed chambers 26 extending throughout the length of the machine by weight loaded pistons 43 in three cylinders above the chambers. The incoming material for two of the chambers is fed directly through inlets 31, but for the third chamber, it first passes through two end chambers 32 and thence by pipes 38 to the chamber. In a modification, Fig. 4 (not shown), using a single ice-cream, the ice-cream passes through the end-chambers on its way to a reservoir above the pumps. Specification 800,105 also is referred to.
Patent GB-208276-A (GB)
Title: Improvements in or relating to openers and covers for milk bottles and the like
IPC: B67B7/12
Filed: 1922-10-03
Abstract: 208,276. Cooper, S. W. Oct. 3, 1922. S t o p p e r s serving secondary p u r p o s e s ; stoppers seated by gravity.-A cover for milk bottles is provided with means for removing closure discs and comprises a shaped disc c provided on its underside with one or more prongs adapted to pierce the closure disc b of the bottle and to withdraw it upon rotation of the disc c. The prongs are pointed or tapered at their ends and are curved and inclined downwards as shown to cause the disc b to ride thereon, and they are preferably formed from a single piece of material to provide a connecting portion i secured to the disc c by a rivet. h &c. The disc c has a depressed centre e and a curved annular part f to seat on the mouth g of the bottle.
Patent GB-871572-A (GB)
Title: Improvements in or relating to graft co-polymers
Inventor: SMITH ROBERT ROY
IPC: C07C17/12
Filed: 1957-08-23
Abstract: Graft copolymers are produced by subjecting a polymer to ionizing radiation, particularly g -rays from a cobalt-60 source, in the presence of oxygen to produce peroxidized active centres on the polymer, treating the peroxidized polymer with an excess of an organic solvent in which it is insoluble, such as methylene chloride or acetone, so as to extract the small proportion of soluble peroxide material produced on irradiation, and then contacting the solvent-treated polymer with a grafting material capable of being polymerized by free radicals.  The polymer may be polyethylene, cellulose, cellulose acetate, or triacetate, polyvinyl chloride, a polyamide, polystyrene, rubber or polymethyl p  methylacrylate.  The grafting material may be styrene, vinyl chloride, vinylidene chloride, vinyl carbazole, isoprene, butadiene, methyl methacrylate, acrylonitrile or acrylamide. Specification 863,211 is referred to.