baber/WOPTO huggingface dataset:
Patent GB-647322-A (GB)
Title: Improvements in and relating to the preparation of polysiloxane resins
IPC: C08G77/00
Filed: 1948-08-06
Abstract: In preparing resinous polysiloxanes, a tertiary saturated aliphatic alcohol containing 4 to 6 carbon atoms is employed as hydrolysing agent for a mixture of hydrocarbon-substituted halogenosilanes with a hydrocarbon-to-silicon ratio between 1 and 1.5 and containing a monohydrocarbon - substituted trihalogenosilane, in solution in dioxane, trioxane, lower dialkyl ethers of ethylene or diethylene glycol, or mixtures thereof.  The halogenosilane mixture may be, e.g. of dimethyldichlorosilane methyltrichlorosilane and phenyltrichlorosilane.  The tertiary alkyl alcohol is preferably added in portions to avoid too high a temperature rise and a small amount of water may be finally added to hydrolyse any unhydrolysed silane.  Where a mixture of silanes of differing reactivities is used, one may be treated and the second silane then added and the mixture further treated.  The product is stripped of volatiles at about 180 DEG  C. to give the resin, which may be dissolved in petroleum spirits, xylene, toluene to make varnishes.  In examples, dimethyldichlorosilane, methyltrichlorosilane and phenyltrichlorosilane were treated (1) stepwise with tertiary butyl alcohol; (2) as a mixture with tertiary butyl alcohol; (3) as a mixture with tertiary amyl alcohol.  The resins may also be mixed with fillers and cure accelerators to give moulding compositions or in solution to impregnate sheets for laminates.
Patent GB-438344-A (GB)
Title: Improved supports for tramway and the like rails
IPC: E01B9/68
Filed: 1935-07-23
Abstract: 438,344. Supports for tramway &c. rails. INTERNATIONAL LATEX PROCESSES, Ltd., 10, Lefebvre Street, St. Peter Port, Guernsey. July 23, 1935, No. 20882. Convention date, July 24, 1934. [Class 104 (ii)] [See also Group V] Tram and like rails rest on two or more superposed layers 3, 5 of material composed substantially of rubber and cement, the elasticity of the layers decreasing from the top one downwards. The layers rest on a rigid foundation 9, and the space 4 on each side of the rail may be filled with bricks &c. The top layer 3 may have integral vertical walls enclosing the space 4 or it may consist of a block formed with a space for the rail. The layer 3 may consist of rubber in aqueous dispersion 16 parts, cement 30 parts, sand 19 parts, gravel 37 parts, water 8 parts. The layer 5 may consist of rubber in aqueous dispersion 10 parts, cement 30 parts, sand 9 parts, gravel 43 parts, water 8 parts. The rubber dispersion may comprise rubber latex 100 parts, sulphur 2 parts, zinc oxide 2 parts, accelerator 0.7 parts, water 9 parts. The space 4 may be filled with a mixture of rubber dispersion 14 parts, cement 28 parts, sand 24 parts, ground waste rubber 4 parts, water 3 parts.
Patent GB-150528-A (GB)
Title: Improved construction of appliances for straining and securing ropes and cords
IPC: A63B61/02
Filed: 1919-08-26
Abstract: 150,528. Welch, J. S. Aug. 26, 1919. Wire, cord, &c. strainers for the cord or wire of a. tennis net comprise a, lever A provided with a bifurcated end B having projecting pins C adapted to engage the teeth E of a double rack D secured by means of a base-plate F to the tennis-net post H. The cord J is tied to the lever, the pins are caused to engage any pair of the teeth E, and the lever is pressed downwards until the cord passes beyond the vertical, whereupon the tension on the rope draws the lever into contact with the post to hold the cord taut.
Patent GB-1367997-A (GB)
Title: Furnaces burning liquid or gaseous fuels
IPC: F23C99/00
Filed: 1972-05-05
Abstract: 1367997 Recirculation of combustion products; gas and oil burners INGENIEURSBUREAU RODENHUIS & VERLOOP NV 5 May 1972 [6 Jan 1972] 20999/72 Headings F4B and F4T A burner 6 is arranged to deliver liquid and/or gaseous fuel and primary air centrally of a burner hole in a furnace wall and secondary air from a wind box 23 is delivered to flow past the burner head within a sleeve 38, and flue gases  are supplied through a passage 47 to a gas box  35 to enter the sleeve 38 through holes 43 to shroud the burner flame from its root. The flow  of secondary air is controlled by shutters 32. The burner head 6 has a central atomizing oil nozzle 17, Fig. 3, supplied with air from an inlet  22, Fig. 1, and a central oil supply pipe 18. Natural gas is supplied through an annular passage 9 to be delivered through inwardly directed nozzles 12 and outwardly directed nozzles 14. A shroud 15 directs some of the secondary air over the nozzles 14. In a boiler furnace, each burner has a separate flue gas box with an independent control.
Patent GB-1512064-A (GB)
Title: Mechanism for moving a rotary member step-wise in either of two opposed rotary directions
IPC: G06M1/04
Filed: 1975-05-16
Abstract: 1512064 Ratchet mechanism AMERICAN MFG CO Inc 16 May 1975 [19 June 1974] 21001/75 Heading F2Q [Also in Divisions H1 and G4] A number wheel 14 is stepped in either direction by corresponding movement up or down of a lever 15 which is connected by a link 18 to a pivotally mounted member 27 which is in operative driving engagement with a lateral surface of the numeral wheel 14, and means are provided for restraining reverse movement of the wheel 14 when the lever 15 is restored to its neutral position. A decimal-binary switching means is located at the side of the wheel 14.
Patent GB-719170-A (GB)
Title: Improvements in or relating to propping-up devices for mines
IPC: E21D23/00
Filed: 1952-08-21
Abstract: 719,170. Propping devices for mines. PERRIN, J. G. Aug. 21, 1952 [Aug. 22, 1951], No. 21005/52. Class 20 (2) A mine propping device comprises two fluid pressure jacks I, II, secured respectively to one of the elements of a telescopic beam A, B and of a telescopic sole C, D, so that one of the jacks can support the roof whilst the other is inoperative and is moved forwards by means of a double-acting fluid pressure jack III which connects the two elements C, D, of the sole.
Patent GB-856894-A (GB)
Title: Apparatus for husking and winnowing nuts
Inventor: GILL ERIC GEORGE ALEXANDER
IPC: A23N5/01
Filed: 1958-07-01
Abstract: 856,894. Husking nuts. SKYLUX Ltd. April 10, 1959 [July 1, 1958], No. 21019/58. Class 58. An apparatus for husking nuts, e.g. ground nuts, comprises a hand-rockable, cradle-like, preferably metal, trough 3 having side walls 4, 4 and a curved perforated bottom 5 provided with a hand grip 6 at each end, mounted on and oscillatable about, a shaft 3 supported horizontally between two spaced-apart A-frames 1, 1, with cross-ties 2, 2, resting on the ground. The side walls 4, 4 have openings 7, 7 to allow a pair of brackets 8, 8 mounted on frame 1, 1 to adjustably support one or more stationary members 9, with downwardly projecting teeth or spikes 10. In operation the trough is rocked, nuts contained in the trough being engaged between the member 9 and the trough bottom 5 so that the husks or shells are broken, and, together with the released kernels, fall through the perforated trough bottom. This mass may be winnowed by usual means or by removing the members 9 and placing a fine screen over the trough bottom. Specification 856,895 is referred to.
Patent GB-665823-A (GB)
Title: Improvements in or relating to electron-discharge velocity-modulation tube apparatus
IPC: H01J25/12
Filed: 1947-08-01
Abstract: 665,823. Velocity-modulated tubes. SPERRY GYROSCOPE CO., Inc. Aug. 1, 1947 [June 28, 1945], No. 21029/47. Class 39 (i). In a frequency multiplier velocity-modulated tube, an input cavity resonator 40 is coupled to the electron beam between the cathode 77<SP>1</SP> and an accelerator grid 69 to modulate both the current-density and the velocity of the beam; the beam then passes through a drift space 75 and an output cavity resonator 89 tuned to a harmonic of the input frequency. The physical size of the resonator 46 for a given fundamental resonant frequency is reduced by providing a flange 52 on the inner wall 48 to introduce an effective lumped capacitance. The cavity resonators may be tunable. The Specification as open to inspection under Sect. 91 comprises also an embodiment in which a parallel resonant lumped constant circuit is connected between the cathode and the accelerator grid. The inductance of the circuit is constituted by a winding which contains and so shields from high frequency, the cathode leads. This subject-matter does not appear in the Specification as accepted.
Patent GB-687574-A (GB)
Title: Improvements in or relating to riveting
Inventor: WHITMAN JOHN GWYNNE
IPC: B21J15/02
Filed: 1949-08-15
Abstract: 687,574. Riveting. MINISTER OF SUPPLY, Oct. 20, 1950 [April 15, 1949], No. 21240/49. Class 83 (iv). [Also in Group XXV] An aluminium rivet 2, Fig. 1, has at one end a head 3 and at the other end a conical depression 4 with upstanding walls 5 thick enough to be upset. In use, the depression should not extend substantially below the level of the plate on to which the rivet is to be closed. The closing is effected by a set 6 formed with an annular groove in its face, the groove being wider than the upstanding wall 5. The rivet may have a depression at each end, Fig. 3.
Patent GB-1499815-A (GB)
Title: Electrical plug and socket assemblies
IPC: B60D1/64
Filed: 1975-03-21
Abstract: 1499815 Two part couplings CHRYSLER UNITED KINGDOM Ltd 21 March 1975 [14 May 1974] 21289/74 Heading H2E [Also in Division F2] A plug (Fig. 5) and socket (Fig. 3) each comprise electric contacts, at least one fluid conduit and valve means in the conduit which open and close the conduits when the plug and socket are mated and unmated. The plug comprises a rectangular moulded element 25 resiliently mounted in a frame 26, spring loaded contact pins 27, an annular boss 40 and a hollow cylindrical housing 31 containing a spring 37 loaded valve member 36 and connected to a fluid conduit 35. The socket comprises a rectangular moulded element 12, contacts 13 with mating butt faces 13a, a spigot 24 and an annular member 16 containing a spring loaded valve member 23 mounted on a flange 20 engaging a groove in the member 16 which is connected to a fluid conduit 22. On mating, alignment is achieved by the spigot 24 entering the boss 40, pins 27 butt faces 13a, and member 23 is first engaged by a stem 39 to open the plug valve and then by a frusto-conical part 32 to open the socket valve, a lip 16a sealing around the part 32.
Patent GB-704115-A (GB)
Title: Process for the production of citric acid-soluble fertilisers
Inventor: SCHYTIL FRANZ
IPC: C05B13/02
Filed: 1951-09-10
Abstract: Citric acid-soluble phosphate fertilizers are obtained by calcining crude phosphates with or without added soda, in an atmosphere of steam at temperatures above 1350 DEG C., the phosphate being in the form of granules of size between 3 and 8 millimetres, varying from one another by not more than 1 millimetre in the absence of added soda or 2 millimetres if soda (4 to 8 per cent.) is added.  Silica may also be added, preferably in amounts between 5 and 15 per cent. or 25 and 35 per cent., so as to give a high melting point mixture and bind any calcium or magnesium oxides as silicates.  The granules are preferably formed by grinding the components to the fineness of cement and granulating with water. The calcining may be effected in a rotary tube having a basic lining.
Patent GB-614502-A (GB)
Title: Ignition systems for internal combustion engines
Filed: 1946-07-16
Abstract: 614,502. Cables; two-part couplings. TITEFLEX, Inc. July 16, 1946, No. 21307. Convention date, July 30, 1945. [Classes 36 and 38 (i)] [Also in Groups XXVII and XXXVII] Cables.-In a pressurized ignition system (see Group XXVII) the leads 17, in addition to being screened, are provided with an axial wire mesh walled channel 75 through the conductor for the purpose of conveying air under pressure from the distributor to the sparking-plugs. Immediately over the hollow conductor 75 is a layer of conventional style cable insulation; a flexible metal shielding conduit is in turn superimposed over the cable and an insulated filling compound is used to fill the space within the conduit between the cable insulations and the inner conduit wall. Two-part couplings.-The lowtension connections 12, 18, Fig. 4, to an induction coil 27 are effected bv means of connector buttons 34, 36, Fig. 5, the curved surfaces of which are maintained in contact by a coil spring 38. The connection is made by screwing a nut 33 on to an outlet conduit 38 of the induction coil 27 ; a moisture-proof joint being ensured by abutment of the front tapered or spherical surfaces of a ferrule 32 and the outlet conduit 28. In the connection to a distributer contact-breaker, a moulded insulation 42, Fig. 4, abuts a ledge on the inner surface of the distributer outlet 43 and a tapered or spherical surfaces on the ferrule. An elbow 44 abuts a similar seat on the face of the outlet 43 which thereby ensures a sealed joint when the threaded connection is tightened up. The high-tension outlet from the induction coil 27 is made through a connection 50, coil spring 51, which damps high-frequency currents, and an open terminal 57 moulded in a plug in connector 52. Surrounding the coil spring and serving as a receptacle for the plug in connector 52 is a moulded insulating bushing 56 which is threadedly fixed to a detachable metal outlet conduit 54. A flanged tapered portion 52 of insulating material on the connector 52 provides a moisture-proof seal when the threaded connection is tightened up. The high-tension input connection 52<1> to the distributer is identical to plug in connector 52. The connection to each shielded sparking-plug 72, Fig. 6, is obtained by means of the distributer contact 66, which is moulded into an insulator 67 that is threaded into the distributer cap 61. A stud connector 71, contact button 69, plug in connector 70 attached to the cable 75, the other end of which latter has a similar type of connector 76 in the sparking-plug 72. A spring connector 73 in each sparking-plug is in the form of a small cell filled with dehydrating material. The high-tension leads 75 in addition to being provided with nut and ferruletype joints also include resilient gasketing integral with the plug-in connectors.
Patent GB-221810-A (GB)
Title: A process and machine for emptying barrels of tallow and the like
IPC: C11B1/12
Filed: 1924-09-10
Abstract: 221,810. Etablissements L.B. Donkers. Sept. 11, 1923, [Convention date]. Removing solid contents.-A machine for emptying barrels of tallow &c. by cutting it out in the form of shavings comprises supporting means for the barrel consisting of adjustable blocks 9, 10, Figs. 1 and 4, adjustment being effected by a spindle 13 with right- and lefthanded threads, clamping means including a block 8 and cutting means including a rotating cutting- head 15, Fig. 5, consisting of an iron plate with radial slots 20 having adjustable blades 21 clamped along them. The cutter is mounted on a spindle 19 which is rotated to move the cutter forwards or backwards according as the driving- belt is on pulley 33 or pulley 34. At the end of its forward travel its movement is automatically reversed by belt-shifting mechanism 37, 38, 39 and 40, operating through a collar 41 on the spindle 19. A slide-way leading the tallow to a melting pot is fixed underneath the barrel.
Patent GB-276027-A (GB)
Title: Improvements in and relating to indirectly-heated steam generators
IPC: F22B1/12
Filed: 1927-08-15
Abstract: 276,027. Schmidt'sche Heissdampf- Ges. Aug. 16, 1926, [Convention date]. Heating by indirect contact of ateaw.-In a steam generator having an indirectly heated steam drum 1, the heating elements through which the heating medium, e.g. steam flows without reversal of direction consist of inlet and outlet headers 4<a> - - 4<d> and 5<a> - - 5<d> within the drum connected by longitudinally arranged straight tubes 3. Pipes 6<a> - - 6<d> and 8<a> - - 8<d> with fittings passing through the drum connect respectively to pipes leading from and to the bent receiving part of the system. The steam drum may be slightly inclined to allow of a larger water space and facilitate removal of condensate from the elements and of deposit from the drum. A larger evaporative surface is also provided in this way near the inlet ends of the elements. Specification 210,749 is referred to.
Patent GB-1148953-A (GB)
Title: Improved advancing mine roof support
Inventor: SHUTTLEWORTH PETER
IPC: E21D23/00
Filed: 1967-05-09
Abstract: 1,148,953. Advancing mine roof supports. MASTABAR MINING EQUIPMENT CO. Ltd. 9 May, 1967, No. 21473/67. Addition to 1085719. Heading E1E. In an advancing mine roof support frame as claimed in claim 1 of specification 1085719, the forward and rearward props are mounted on a single shoe formed by a pair of parallel sledge-like runners 70, 72 of U-shape interconnected by bridge members 74, 76. A flap 46, 50 of wrap around configuration is hing- edly connected to the canopy 40 and slidably rests on the shield 30. For details appertaining to the location of the props in the canopy and the base the Specification should be referred to.
Patent GB-922130-A (GB)
Title: Improvements relating to caps for electric incandescent lamps
Inventor: WRIGHT JOHN WILLOUGHBY THOMAS
IPC: H01K1/70
Filed: 1960-06-20
Abstract: 922,130. Lamp caps and holders; cut-outs. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 11, 1961 [June 20, 1960], No. 21588/60. Class 38 (1). A centre contact type lamp cap incorporating a series cut-out comprises complementary discs 1, 3 between which the inturned rim 5 of the metal sleeve 2 of the cap is clamped by a contact eyelet 4 one of the discs being of insulating material and the other having a normally insulating coating located at that face to which contact with the rim of the sleeve is established, the insulating coating being such as to break down if the lamp filament breaks. The disc 3 may be either of copper, the normally insulating coating being of cuprous oxide, or it may be anodised aluminium. In the embodiment shown, the cap 2 is of the Edison screw type but it may be of the bayonet type.
Patent GB-206587-A (GB)
Title: Improvements in and relating to smoke consumers for locomotives or the like
IPC: B61C1/14
Filed: 1922-08-08
Abstract: 206,587. Miller, C. D. Aug. 8, 1922. Air, supplying; combustion products, returning to furnaces.-For consuming smoke in locomotives and the like, air supply pipes 11, Fig. 1, arranged outside the boiler are provided with forwardly and rearwardly directed air intakes 12, 13 and extend through the sides of the smoke-box where they terminate in the form of rearwardly directed hoods or are continued through the boiler to the fire-box. When, as shown in Fig. 1, the pipes 11 deliver air directly into the smokebox, the air passes with combustion products through some of the boiler tubes to the' fire-box. To assist the passage of air through the pipes 11, exhaust or live steam may be delivered to the pipes 11 through the pipes 16, 17 respectively or air may be supplied through a pipe 19. The admission of air through each pipe 11 may be controlled by a damper 15. In the modification shown in Fig. 5, the pipes 11 are provided with extensions 14' leading through the boiler to the fire-box where the air is delivered beneath a baffle plate 15<1> and baffle wall 16'. Steam may be supplied to coiled pipes arranged within the pipes 11 for heating the air.
Patent GB-454398-A (GB)
Title: Improvements in or relating to wheel springing for motor vehicles
IPC: B60G21/055
Filed: 1935-07-30
Abstract: 454,398. Vehicle spring suspensions. PALMER, G. M., 53, Hallowell Road, Northwood, Middlesex. July 30, 1935, No. 21621. [Class 108 (ii)] In vehicles in which the wheels are independently sprung the axes of the wheels are maintained in substantially parallel relationship by a transverse member which is strong in resistance to bending but is relatively weak in torsion so as to act as a torsion stabilizer. The wheel casings 28 are carried by arms 13 which are pivoted at 14 to the chassis 10 and are connected to torsion bar springs 15, the other ends of which are anchored at 16 to a bracket 17 and also provided with a spigot 19 adapted to bear in an eye 20 through which the vehicle drive 22 passes and which is mounted on a transverse member 21 of channel section. The ends of the member 21 are connected to the casings 28 and to the arms 13. The brake anchor plate 37 is rotatably mounted relatively to the casing 28 but is kept from actual rotation by an arm 40, Fig. 2, the end of which forms part of a shock-absorber 41. Fig. 5 shows a transverse member 21 mounted to the rear of the axle and rods 44 are provided to prevent lateral movement of the wheels.
Patent GB-1058115-A (GB)
IPC: C07C/
Filed: 1964-05-26
Abstract: In a process for the preparation of acrylonitrile and methacrylonitrile by the oxidation of propylene or isobutylene with oxygen or gases containing oxygen in the presence of ammonia at an elevated temperature, a tin salt of a boromolybdate heteropoly acid on a carrier is used as a catalyst.  The weight ratio of stannic oxide to molybdenum oxide is from 10:1 to 1:10, and of boron oxide to molybdenum oxide is from 1:5 to 1:20. and the preferred carrier is silica gel.  The catalyst may be prepared by impregnating the carrier with solutions of tin, boron and molybdenum salts, or by coprecipitation of silica gel and tin, boron, molybdate, followed by drying, and the use of a fluidized bed method is preferred.ALSO:Aminoxidation catalyst comprise tin salts of a boromolybdate heteropoly acid supported on a carrier.  The weight ratio of stannic oxide to molybdenum oxide is from 10:1 to 1:10, and of boron oxide to molybdenum oxide is from 1:2 to 1:50 and silica gel is preferred as the carrier.  The carrier may be impregnated with suitable solutions of tin, boron, molybdenum salts and dyed, silica-gel may be co-precipitated with tin boron molybdate, or the tin salt of boromolybdic acid may be applied in molten form preferably in the presence of a flux e.g. urea or oxalic acid. The particle size is determined by spraying, extrusion or by grinding. In examples of catalyst preparation, boric acid is added to ammonium molybdate solution followed by stannous chloride solution, the solution made alkaline with ammonia, and silica gel kneaded is followed by dying and annealing; ammonium molybdate and boric acid solution is stirred into silica sol and during heating and mixing an acetic acid solution of stannous oxide is flowed in, the mixture is evaporated and calcined.
Patent GB-1300802-A (GB)
Title: Improvements in or relating to extrusion
Inventor: FUCHS FRANCIS JOSEPH JR
IPC: B21C35/02
Filed: 1970-01-27
Abstract: 1300802 Extruding WESTERN ELECTRIC CO Inc 27 Jan 1970 [28 Jan 1969] 21719/72 Divided out of 1300801 Heading B3P The description is substantially identical with Specification 1,300,801 but the claims relate to a method of extrusion wherein the bar is advanced to the extrusion die through regions of pressurized fluid whose pressures increase in the direction of advance, extrusion taking place in a region of high pressure.
Patent GB-301887-A (GB)
Title: Process and apparatus for the preparation of pulverized solid fuels
IPC: F23K1/00
Filed: 1928-07-27
Abstract: 301,887. Loy, G. S. Dec. 9, 1927, [Convention date]. Disc and like mills.-Apparatus for drying and pulverizing fuel &c. comprises a hopper 1 delivering into a screw conveyer 2 situated over a dryer 4 in which hot gas circulates and having blades or paddles 6 mounted on a horizontal shaft 5. The material is discharged from the dryer through an aperture 9 on to a magnetic drum 10 and thence, freed from magnetized particles, into a trough 11 leading to a pulverizer 12. The pulverized material passes thence through a pipe 14 to a sorting chamber 15 containing screens. The finer particles pass through the screens and are drawn by suction fans into pipes 18, and conveyed to the point of use. Material in excess of requirements and also larger particles failing to pass through the screens, fall back into the conveyer 2 and thus reduce the amount of fresh fuel fed into the circuit. A perforated screen 17 permits the suction to draw sufficiently fine particles direct from the dryer.