baber/WOPTO huggingface dataset:
Patent GB-872678-A (GB)
Title: Method of injecting fuel continuously in internal combustion engines
IPC: F02B17/00
Filed: 1958-05-15
Abstract: 872,678. Fuel injection engines. CITROEN S.A., ANDRE. May 15, 1958 [Oct. 10, 1957], No. 15613/58. Class 7(3). An injector 7 in each intake pipe injects fuel continuously directly on to the intake valve 11 so that when the valve opens a stratified charge of rich mixture A, leaner mixture B, and air C is formed in the cylinder, which charge is compressed into a turbulence chamber 3 and ignited by a spark plug 9. The exhaust valve 12 is situated in the chamber 3. Specification 779,978 is referred to.
Patent GB-664341-A (GB)
Title: Improvements in or relating to electronic discharge-tube amplifiers
IPC: H03F3/28
Filed: 1947-06-16
Abstract: 664,341. Valve amplifying circuits. PHILIPS LAMPS, Ltd. June 16, 1947 [June 18, 1946], No. 15785/47. Class 40 (vi). In a push-pull amplifier of the type comprising a pair of valves having an unbalanced signal applied to the one, while. the other derives its input from a common output transformer, negative feed-back is utilized to suppress mains hum or to stabilize the amplifier. In one embodiment, Fig. 1, the input of the valve 2 is derived from a winding 7 on the output transformer and the arrangement stabilized by applying negative feed-back to the other valve 1 by means of an auxiliary winding 6. Alternatively, Fig. 3 (not shown), the winding 7 may be dispensed with, the grid of the valve 2 being earthed and its cathode connected to the cathode of the valve 1. In another arrangement, Fig. 2, the transformer winding 6 is coupled to the grid circuits of both valves by means of resistances 10, 11 and 8, 9 respectively. In the arrangements of Figs. 4 and 6 (not shown), in which the valve 2 is driven from a tap on a potentiometer 6 across the output transformer primary, negative feed-back is applied from the same point to the grid of the valve 1 in order to balance out mains hum. In a modification, Fig. 5 (not shown), the grid of the valve 2 is earthed, the cathodes of the valves being connected via a blocking condenser to a tap on the transformer and to ground via a common bias resistance. Specification 519,448 is referred to.
Patent GB-1045526-A (GB)
Title: A method of zone-by-zone melting a rod of semiconductor material
IPC: C30B13/16
Filed: 1964-04-16
Abstract: 1,045,526. Zone-melting. SIEMENSSCHUCKERTWERKE A.G. April 16, 1964 [April 27, 1963], No. 15895/64. Heading B1S. In the suspended zone-melting of a silicon rod, a low temperature gradient is maintained in the neighbourhood of the molten zone by means of preheating and after-heating means, the pre-heating means being of greater heating power than the after-heating means. The rod may have a diameter of 25 mm. The molten zone may be moved at 3 mm/min. The three heating means may be fixed relatively to one another. Heating may be by radiation, electron beams or induction. As shown, a rod 2 is passed relatively downwards through three induction coils, pre-heating coil 5a and after-heating coil 5b being electrically connected and having three and two turns respectively. Alternatively (Fig. 2, not shown), both coils may have three turns and the after-heating coil may be of larger diameter.
Patent GB-867755-A (GB)
Title: A bearing for a table or slide of a machine tool or other apparatus having a v-shaped guideway
Inventor: COBB ERNEST TRACY
IPC: F16C33/48
Filed: 1958-05-17
Abstract: 867,755. Rectilinear - motion bearings. LYTHALLS ENGINEERING CO. Ltd. May 4, 1959 [May 17, 1958; June 9, 1958], Nos. 15918/58 and 18299/58. Class 12 (1). A rectilinear-motion bearing, for a table or slide of a machine tool or other apparatus having a V-shaped guideway, comprises a carrier in the form of a strip of sheet metal or synthetic plastic material of V-shape in transverse cross'-section or, alternatively, in the form of a pair of flat strips arranged adjacent the inclined walls of the guideway, each strip having therein a number of apertures 2, in each of which is mounted a roller 3. The longitudinal edges of each aperture are formed with three tongues which are bent transversely of the strip to hold the roller, the centre tongue 5 being bent in the opposite direction to the tongues 4 and corresponding tongues at opposite edges of each aperture being bent in opposite directions. The pair of strips 1, which may be hinged together have mutually - engaging notches 10, are positioned in V-shaped grooves 7, Fig. 6, of a machine tool, for example, to facilitate movement of a table 8. In a modification, Fig. 7, the rollers are mounted in seating members 16, made of a flexible material such as polyethylene. Each member 16 has a part-cylindrical concave face 18 to engage the roller 3 and has a bifurcated flange which receives an edge of the strip 15 bounding the aperture. On assembly, a roller may be mounted in one of the seating members 16 and the other seating member is then forced into position. Alternatively the seating members are positioned on the strip 15 and the rollers inserted and retained in position by a continuous or intermittent closure strip 19 attached to the carrier. One or more rows of rollers could be mounted in the strips which, if flexible, could be formed into an endless band.
Patent GB-1361534-A (GB)
Title: Hydraulic motors
IPC: F03C1/34
Filed: 1972-04-06
Abstract: 1361534 Container traffic container transfer; winches AUTOLAVA OY 6 April 1972 [6 April 1971] 15935/72 Headings B8B and B8Q [Also in Division F1] A cargo 4 is drawn on to the pivotable platform 3 of a road vehicle by means of cables 10 secured to the cargo and wound on to drums 9 driven by an hydraulic motor 7. The drums 9 are mounted at opposite ends of the motor's output shaft 8, the shaft being supported in bearings 21 slidably mounted in oval ring supports 20 fixed to the ends of the side beams 14 of the platform 3. If the cables become unequally tensioned, the bearing 21 of the cable carrying the highest tension slides towards the load in its oval ring support. This in turn causes a bar (25) fixed to that bearing 21 to move further into a U-pipe 26 to displace balls therein and cause the other bearing 21 to move away from the load.
Patent GB-784544-A (GB)
Title: Improvements in and relating to the production of substituted meta-dioxanes
Inventor: CRISP EDMUND THEODORE
IPC: C07D319/06
Filed: 1955-06-03
Abstract: Substituted meta-dioxanes are produced by bringing together at a pressure of up to 500 atmospheres and a temperature of up to 300 DEG C. an olefinically unsaturated hydrocarbon, formaldehyde and a catalyst comprising either aluminium phosphate or tungstic acid. Propylene may be reacted with formaldehyde at 120-150 DEG  C. and 400 atmospheres in the presence of a tungstic acid catalyst to give a product comprising a major amount of 4-methyl-meta-dioxane and a minor amount of 4-hydroxytetrahydropyran.  This process may be used as a step in the production of butadiene from propylene and formaldehyde.  For example, the 4-methyl-meta-dioxane may be reacted with methanol in the presence of an acidic catalyst to give methylol and butane-1 : 3-diol.  The methylol may be oxidized to formaldehyde which is recycled for use in the process, while the butane-1 : 3-diol may be dehydrated, e.g. by use of a phosphate-containing catalyst, to butadiene.  Alternatively, the methylol may be hydrolysed to methanol and formaldehyde, the former being recycled for reaction with the 4-methyl-meta-dioxane and the latter being recycled for reaction with propylene.  Other suitable olefinically unsaturated hydrocarbons for use in the process are butenes and styrenes.  In an example, paraformaldehyde, tungstic acid, water and propylene are heated in a copper-lined autoclave to 135 DEG  C. and 445 atmospheres, and 4-methyl-meta-dioxane is recovered with 4-hydroxy-tetrahydropyran as a by-product.  Comparative examples are described using the same reactants, without a catalyst, and with a sulphuric acid catalyst.
Patent GB-637459-A (GB)
Title: Improvements in or relating to electricity meters, time switches, or relays
IPC: H01H9/38
Filed: 1947-06-17
Abstract: 637,459. Mechanical switches; arc rupturing in switches. ARON ELECTRICITY METER, Ltd., and RIORDAN, E. J. June 17, 1947, No. 15991. [Class 38 (v)] In a switch having main and subsidiary arcing contacts, each moving contact is actuated by a separate cam, the cams being arranged so that the subsidiary contacts are closed before the main contacts close, and are opened after the main contacts open. The switch has fixed contacts 1, 2 connected in parallel and mounted on spring strips 3, 4. The -co -operating moving contacts 5, 6 are mounted on arms 7, 8, the arm 8 being resilient and riveted at its lower end to the arm 7 which is pivoted on a hinge 9. The cams 10, 11 on a spindle 12 engage the arms 7, 8 to close the contacts and stirrups 7a, 8a on the arms to open the contacts. The lobe of cam 11 is displaced relatively to that of cam 10, so that the subsidiary contacts 2, 6 are closed..before the main contacts 1, 5 close and are opened after the main contacts open. The main contacts 1, 5 are of large cross-sectional area and may be of silver, whilst the subsidiary contacts 2, 6 may be of tungsten alloy or other arc-resistant metal. Specification 523,674 is referred to.
Patent GB-883215-A (GB)
Title: Wet spinning of polyvinyl alcohol fibres
IPC: D01D5/06
Filed: 1959-05-11
Abstract: An aqueous polyvinyl alcohol spinning solution is wet-spun to form filaments, the minimum linear speed of the extruded filaments over the distance of from 5 to 20 cms. from the spinneret being 5 metres/min., and the maximum filament linear speed over this distance being less than the extrusion speed of the spinning p  solution.  The coagulating bath may be a saturated aqueous sodium sulphate solution, but other conventional baths may be used, e.g. potassium sulphate, ammonium sulphate and sodium dihydrogen phosphate, saturated aqueous solutions of these salts being preferred.  The spinning solution may comprise a blend of polyvinyl alcohol with acetalized <PICT:0883215/IV (a)/1> polyvinyl alcohol.  Spinning may be horizontal, inclined, or, preferably, substantially vertical, as in the apparatus shown. Spinning solution supplied to line C is extruded through spinneret D into the coagulating zone, to which coagulating liquid is supplied by the branches B.  The speed of the extruded filaments is controlled by adjustments of coagulating bath velocity and by the use of a driven roller in the coagulating bath (not shown), and is measured over the specified distance photographically. Filaments may be stretched before leaving the coagulating bath by control of the withdrawal roller speed.  Overflow means (not shown) are provided to collect the upflowing coagulating bath for reconcentration and further use.  The filaments withdrawn from the bath over roller E may be stretched, dried, heat-treated, and formalized, acetalized or benzalized in conventional manner.
Patent GB-485816-A (GB)
Title: Improvements in or relating to apparatus for the electrical protection of gaseous discharge-tubes
IPC: H05B41/46
Filed: 1937-06-10
Abstract: 485,816. Protective cut-out arrangements; magnetic switches. BARLOW, H. E. M. June 10, 1937, No. 16063. [Class 38 (v)] [Also in Group XXXV] In a device for protecting electric dischargetubes, the current input to the primary winding of the transformer supplying the tube is interrupted by the action of an electromagnetic relay operated automatically as a result of any change from the normal distribution of the flux of the transformer. The device operates in dependence on overload and short-circuit in the secondary and also on open.-circuit, and is applicable to signs N, valves, and ray appliances. Windings A1, A2 are connected across a coil Q energized in accordance with the flux linking the secondary S, whereas windings B1, B2 are connected across the additively-connected coils M on the leakage-core. Pivoted armatures C1, C2 are normally in the positions shown, to which they are manually restored after operation. On overload in the secondary S, the flux linking the latter diminishes owing to the increased diversion through the leakage-core ; accordingly the currents in windings A1, A2 fall and those in B1, B2 rise. Armature C1 is pulled over against B1 and, by striking projection F, tilts a mercury-switch D about its pivot H, so opening the primary P. On opencircuit in S, the currents in A1, A2 rise and those in B1, B2 fall, so that armature C2 is pulled over to strike projection F. To prevent chattering, the armatures may be oil-immersed or may be separated from the cores by a cushion. The secondary mid-point is preferably earthed, so that an earth-fault produces disconnection of the primary in the same way as an overload. In a modification, the relays may be dispensed with by placing pivoted armatures in the paths of the respective fluxes. The Provisional Specification shows and describes also two forms in which winding Q is located between the two halves of the secondary, and in one of these forms the winding M is a single coil embracing the entire primary flux. The winding Q energizes a single relay similar to A1 and winding M a single relay similar to B 1. The single armature, similar to C1, is normally against the core of the winding energized by Q and is pulled over by the other to operate the mercury switch on overload, due to the fall of flux linking winding Q, with either maintenance of the primary flux or increase of the leakageflux, according to the position of M. The latter winding may be dispensed with, and winding B be placed in series with the primary P.
Patent GB-1110205-A (GB)
Title: Improvements in or relating to control devices for traffic signal installations
IPC: G08G1/08
Filed: 1966-04-13
Abstract: 1,110,205. Road traffic signals. SIEMENS A.G. 13 April, 1966 [13 April, 1965], No. 16111/66. Heading G4Q. Two sets of signal lights Sg 1-2 and Sg 3-4 at different road junctions are controlled from programmes stored in a store Hs p1 by counting one-second pulses from a generator Tg and changing the lights when the count corresponds to a stored count. The generator Tg feeds a 40 kc./s. generator Ge which, through a distributer Tv and address register Ar1, samples all the storage cells. Fig. 3 shows one form of store comprising four sets of cells, two for each set of signal lights; the active cells have L in the last column and the inactive ones O. The signal cells (e.g. z2) contain a code S in the first column, the times at which changes are required in the second and third columns, a code (e.g. A) in the fourth column controlling a corresponding contact (a) in unit Sch, Fig. 2, thereby selecting the appropriate signal (Sg1). The time storage cells (e.g. zl) contain a code zz in the first column, the time in the second column, which is advanced by one each sampling cycle, and the length of the signal cycle in the third column. The second column is connected by line V8 to a time store ZSp, Fig. 2 and the second and third columns are connected to a comparator Vg1 which detects coincidence and resets the second column and the store ZSp at the end of a cycle via line V9. Coincidence units Vg2 and Vg3 detect coincidence between the time store ZSp and the times at which the signals should change (supplied on lines V8 and V10 from the second and third columns of the signal stores) and energize lines V15 and V16 thereby changing over the appropriate bi-stable switch T1-T4 selected by the fourth column of a signal store via lines V1 and V12, address register Ar3, and contacts a to d. The store is provided with an input device E and address register Ar 2. The input may be derived from punched cards or the like, a teleprinter, or a data-processing installation responsive to traffic data. In an alternative form of main store, Fig. 4 (not shown), each storage cell is provided with a final column giving the address of the next cell to be sampled. There are twenty time storage cells (Z1-Z20) and 180 signal storage cells (Z21-Z200).
Patent GB-254712-A (GB)
Title: Improvements in drink dispensing machines
IPC: G07F13/10
Filed: 1926-06-28
Abstract: 254,712. McLellan, J. H. July 6, 1925, [Convention date]. Fixed-chamber apparatus.-Relates to a drink dispensing machine of the kind comprising a casing having a cup delivery recess, a liquid valve, means for supporting a cup adjacent thereto. means for discharging liquid into the cup from the valve, and means for delivering the cup into the recess for depositing another cup adjacent the valve in readiness for filling after the insertion of a coin. An electric motor 35, Fig. 3, started by prepayment rocks in a clockwise direction by means of a ratchet wheel 40, a shaft 36 from which, through crank arms controlled by dashpots and cams, the various movements of the machine are derived. The liquid is fed from a tank 5, through a pipe 7 and port 113 in a valve 8, Figs. 2 and 3, to a measuring tank 6. The valve 8 has a port 114 communicating with a discharge spout 9, and a piston 115, controlled by a spring 117 and normally located between the ports. The piston is moved between the port 113 and the pipe 7 to discharge the contents of the tank 6 into a cup resting on a counterweighted lever by a push rod operated in one direction by a cam and in the other by a crank arm. The spout 9 is pivoted to the valve and is moved to delivery position by a rod connected to a pistonoperating member. The filled cup is carried forward into a delivery receptacle 100.
Patent GB-117378-A (GB)
Title: Improvements in or relating to Camp Bedsteads.
Inventor: RAHMATALI SAYED
IPC: A47C17/66
Filed: 1917-11-06
Abstract: 117,378. Rahmatali, S., and Gafoor, A. Nov. 6, 1917. Folding bedsteads.-A camp bedstead comprises a folding framework with side rods s and detachable end rods d, e, together with a canvas covering g. The covering carries side rods f which engage loops a, b, c on the frame, while the end loops h, i are fitted over the rods d, e.
Patent GB-1118661-A (GB)
Title: Improvements in or relating to bodies of fibre-reinforced plastics material
Filed: 1964-04-20
Abstract: 1,118,661. Laminates. C. WIGGLESWORTH. 8 July, 1965 [20 April, 1964], No. 16232/64. Heading B5N. A shaped body, e.g. the hull of a boat, is made by applying a layer of glass or other fibre-reinforced resin 6 (Fig. 4, not shown) to a mould surface 5, applying while the resin is unset, trapeziform or like spaced strips 3<SP>1</SP>, e.g. of foamed polyurethane to layer 6, covering the layer and the strips with a second similar layer, inserting between the strips further inverted strips 3<SP>11</SP> also of trapeziform shape, applying a cover layer 10 similar to layer 6, and allowing the resin to set.
Patent GB-286939-A (GB)
Title: Improvements in and relating to the fuel supply to internal combustion engines
IPC: F02B1/00
Filed: 1927-06-18
Abstract: 286,939. Udale, S. M. June 18, 1927. Spray carburettors.-To increase the charge at high engine speeds, a carburettor is provided with a small centrifugal air pump A driven from the engine and discharging through a conduit C into the mixing-chamber D which is provided with a main air inlet and with a rich mixture inlet conduit E, the conduit C being connected by a pipe H<1> with the float chamber G so that the fuel supply is increased as the air pump becomes effective at high speeds. The main air supply may be controlled by a suction-actuated valve F, and the rich mixture conduit E may be surrounded by an exhaust jacket F<1> or may be heated by conduction from the exhaust manifold. The pressure in the float chamber may be controlled by the provision of an interchangeable vent J. The pump may be driven by the belt which drives the radiator cooling-fan.
Patent GB-570758-A (GB)
Title: Improvements in or relating to colours for painting on photographic prints and the like
IPC: C09D105/14
Filed: 1943-10-05
Abstract: 570,758. Water colours; cakes. GROSE, L. A. T. Oct. 5, 1943, No. 16306. [Class 95] A water colour, particularly for use in painting on photographic prints, comprises a watersoluble dye, gum arabic, oxgall, glycerine and water, mixed into a paste. Methyl salicylate may be added. The paste may be filled into a container with a sealed opening, or it may be dried out in a tray, to form a sheet which can be cut up into pieces for fitting into the usual pans of paint boxes.
Patent GB-797828-A (GB)
Title: Improvements in and relating to electric incandescent projection lamps
Inventor: MORFEY DENNIS SURRIDGE
IPC: H01K7/02
Filed: 1954-06-02
Abstract: 797,828. Electric incandescent lamp filaments. BRITISH THOMSON-HOUSTON CO., Ltd. June 1. 1955 [June 2, 1954], No. 16340/54. Class 39(2) The coiled filaments of a projection lamp are arranged in sections with the axes of the coils of the sections arranged substantially parallel to one another to lie in three substantially parallel planes A, B, and C, and with the coil sections in the two adjacent planes A and B in staggered relation to one another, and each of the sections a<SP>1</SP> which have their axes lying in the third plane C are located so that their respective axes are positioned on the centre line of a gap b otherwise visible between the sections which have their axes in the two planes A and B. The arrangement shown is a modification of a conventional arrangement comprising the same number of coil sections viz. eight disposed in two parallel rows of four, with the sections of one row staggered relative to those of the other row, thereby resulting in considerable gaps between the sections of the filament when viewed at angles other than perpendicular to the planes containing the axes of the said sections, thereby producing a non- uniform light emission. In the arrangement shown the distance R between the centres of the coils in the adjacent planes is the same as for the conventional two row arrangement referred to. Curves, Fig. 3 (not shown) are furnished illustrating the relative increase of average brightness attained with the modified arrangement of the coils.