baber/WOPTO huggingface dataset:
Patent GB-1202774-A (GB)
Title: Thermostatic control means for gas-fired fluid heating apparatus
Inventor: BROOKS ERNEST GEORGE
IPC: F23N1/08
Filed: 1968-01-18
Abstract: 1,202,774. Valves. POTTERTON INTERNATIONAL Ltd. 18 Jan., 1968, No. 2659/68. Heading F2V. A thermostatic valve for controlling a gas burner in the boiler of a water heating system can have its operating range altered by selectively applying current to resistance heating elements R 1 , R 2 . In Fig. 3 these elements are wound on a heat sensitive probe 8 in one of the water tubes, but in a modification (Fig. 4, not shown) an auxiliary probe (15), connected to capillary tube 10, is provided with the heating elements. In another embodiment (Fig. 5) the position of the datum regulating control 12 is adjusted by a toothed sector 18 movable by a bi-metallic strip 21 provided with elements R 1 , R 2 . The Specification describes circuits (Figs. 7 and 8, not shown) which energize the elements under the control of a programming clock and an air temperature sensing element.
Patent GB-679272-A (GB)
Title: Improvements in or relating to machine tools for use in producing turbine or the like blade elements
Inventor: SMEDLEY JOHN
IPC: B24B17/02
Filed: 1950-02-01
Abstract: 679,272. Grinding turbine blades. ROLLS-ROYCE, Ltd. April 25, 1951 [Feb. 1, 1950], No. 2673/50. Class 60. A machine for grinding the convex surface of a turbine or like blade comprises a grinding wheel 22 of sufficient width to render traverse unnecessary, a rotatable arbor 13 to support the blade with its spanwise axis approximately parallel to the grinding wheel axis, and separate cam and follower devices for each end of the carrier under control of which the ends of the latter are reciprocated in a plane parallel to the plane containing the axes of the grinding wheel and carrier and also in a plane at right angles thereto. Two cams 25, 26 held in contact with fixed roller followers 27, 29 by springs 31 are provided at each end of the arbor 13 which is driven through a universal joint 21 or a flexible shaft drive from an electric motor and a reduction gear (not shown). The cam 25 produces the movement in the first-mentioned plane while the cam 26 produces the movement in the second-mentioned plane. Clamps 15 hold the blades on the arbor and the diameter of the grinding wheel may be about ten times that of the circle swept out by the blades. The springs 31 are connected to the arbor through freelymounted collars 32. According to the Provisional Specification, the arbor may be journalled at each end in pedestals adapted to slide transversely to the grinding wheel axis, the cams 26 being omitted. This specification also states that the cam profiles may be determined by rotating a master blade in contact with a dummy grinding wheel.
Patent GB-1263394-A (GB)
Title: A control system for electrochemical machining apparatus
IPC: B23H3/02
Filed: 1970-01-20
Abstract: 1,263,394. Protective arrangements. ANOCUT ENG CO. 20 Jan., 1970 [4 Feb., 1969], No. 2682/70. Heading H2K. A protective arrangement for an electrochemical machining apparatus comprises a plurality of sensing devices 30, 38, 40, 150 to sense different fault conditions in the apparatus, a plurality of indicating means each responsive to a fault signal from a respective sensing means, means for enabling the fault condition which occurs first to be indicated by the appropriate indicating means and means responsive to all sensing means for indicating a secondary fault condition which occurs prior to resetting. The sensing means comprise sn overcurrent sensor 30, a current increase sensor 38, a current decrease sensor 40 and a spark detecting circuit 150. The output from the sensors 30, 38 and 40 are compared in comparators 34, 96 with reference signals and the outputs from these comparators and the spark detecting circuit 150 are effective to change the state of flip-flop circuits 48, 102, 132, 156 which are all connected to AND gates 52, 66, 68; 70 arranged to passafault signal from the associated flip-flop circuit unless prevented from doing so by a prior signal from any other circuit. Thus the first fault signal will pass through the appropriate AND gate and set a flip-flop 56, 108, 142 or 180 to cause a lamp driver to extinguish a green lamp, e.g. 12<SP>1</SP>, and to light a red lamp, e.g. 12<SP>11</SP>. The first fault signal is also applied, e.g. from flip-flop 48, through the closed contacts of a switch 12 associated with the lamps 12<SP>1</SP> and 12<SP>11</SP>, to an OR gate 82 which provides a signal to a circuit 90 to effect the shutting down of the apparatus. Should a second fault signal follow the first signal, then the second signal will pass through the appropriate OR gate 58, 110, 146, 182 to an OR gate 61 and thence to a lamp driver 242 to extinguish a green lamp 18a and to light a red lamp 18b. To determine which sensor provided the second fault signal a push-button switch 18 is operated to close contacts 18c which causes operation of the appropriate lamp driver 78, 118, 149, 192. A relay 220 with associated components delays operation of the arrangement when the apparatus is started. A short circuit detecting circuit 200 applies a potential across the electrodes of the apparatus to determine the existence of a short circuit prior to, and after, starting. A short circuit causing the operation of a relay 204 to shut down the apparatus and to light a red lamp 17b. Most of the components and circuits are described in some detail and illustrated in Figs 1 and 3 to 7 (not shown).
Patent GB-1172145-A (GB)
Title: Transfer Material
Inventor: HERITAGE DEREK HAROLD
IPC: B44C1/17
Filed: 1966-01-20
Abstract: 1,172,145. Transfers. D. H. HERITAGE, and F. J. MORLEY. 11 Jan., 1967 [20 Jan., 1966], No. 2698/66. Heading B6C. [Also in Divisions C3 and C5] A transfer material comprises a carrier sheet bearing pressure transferable indicia formed of a material which is ink receptive and water repellant so that a lithographic plate may be prepared by application of the carrier sheet to the plate and transferring the indicia on to the plate by applying pressure to the rear of the sheet. The carrier sheet is preferably transparent or translucent, and may be tracing paper impregnated or coated with a wax or silicone release agent, or may be of plastics material such as cellulose acetate, polystyrene or polyethylene which may be coated with a release layer. Alternatively, the sheet may he opaque coated paper on which the indicia are repeated on the reverse face in register with those on the front to aid correct transfer. Tear lines may be defined in the carrier sheet so that one symbol may be selected and accidental transfer prevented, or a transparent or translucent protector sheet, e.g. coated with silicone, may be used for this purpose. The material forming the indicia is paste based solely on an ink comprising a pigment, e.g. carbon black, dispersed in a film forming material such as cellulose acetate and dissolved in an organic solvent, e.g. cyclohexanone, or a chloro-sulphonated polyethylene dispersed in aromatic and ketone solvents, and a wax which may be natural, e.g. beeswax or petroleum derived wax, or synthetic, e.g. polyethylene, polyethylene glycol or modified polyethylene glycol waxes. The wax content is not more than 95% by weight and preferably between 25 and 65%. In an example, the indicia material comprises 10% petroleum derived wax, 45% cyclohexanone and 45% cellulose acetate ink, and the transfer sheet is prepared by printing the indicia on a carrier sheet by a silk screen process and excess solvent allowed to evaporate by standing in air, or by using warm air. In preparing a lithographic plate, the indicia are applied thereto and the plate is heated to a temperature in the range of 120‹ to 200‹ F. for 5 to 30 seconds, the heat being applied to the back of the plate by radiation or convection.
Patent GB-1502196-A (GB)
Title: Ball valve
IPC: F16K/
Filed: 1976-01-23
Abstract: 1502196 Valves KITAZAWA SHOJI KK 23 Jan 1976 [6 June 1975] 02709/76 Heading F2V In a rotary ball valve a conical spring 17 with 4-12 radial slots and a conical projection located in a seat 42 in the casing supports the weight of the valve member to reduce wear on the sealing members. The sealing members 10 are provided with a U or V-shaped groove 26 into which a U or V-shaped resilient member 14 is loaded to bias the arms of the sealing members against the valve member 15 and the casing 12, 13. The surface 56 of the sealing members is provided with annular recesses 66, 76 to reduce friction between the sealing members and the valve member.
Patent GB-607162-A (GB)
Title: Improved apparatus and process for the treatment of finely divided minerals or carbonaceous substances with heated gases and/or superheated steam
IPC: C01B17/52
Filed: 1946-01-28
Abstract: <PICT:0607162/III/1> Apparatus for the treatment of finely-divided minerals or carbonaceous material with hot gases and/or steam, comprises a stationary treatment chamber 1.  Finely-divided solid material to be treated is fed into the chamber at inlet 3.  Hot gas and/or steam is introduced tangentially into the chamber through a plurality of inlets 12, 13, 14 and 15, the said inlets being disposed alternately in opposite directions.  The gas inlets are preferably separated by ridges 17 which may be of triangular cross section.  The turbulence set up in the chamber results in a rapid reaction, the products of which and residual untreated reactants being withdrawn to dust collectors for separation.
Patent GB-730912-A (GB)
Title: Improvements relating to motion picture projection systems
Inventor: BOWEN ARTHUR
IPC: G03B15/08
Filed: 1953-01-30
Abstract: 730,912. Kinematograph apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 20, 1954 [Jan. 30, 1953], No. 2729/53. Class 97 (1). [Also in Group XXXVIII] The angular movements of a kinematograph camera in azimuth and/or elevation, to follow a centre of interest of a scene being photographed, are recorded synchronously with the images recorded on the film. The same film or a separate magnetic tape or tapes may be used for recording the camera movements, and during subsequent projection of the film, the projected beam is angularly moved so that the image appears at different positions on the screen, in accordance with the recorded camera movements. These movements may be recorded subsequently to the filming. Also, further angular movements, additional to those of the camera, may be applied to the projected beam, these movements being added to the panning record, e.g. when the film is edited. The projected beam may be angularly moved by rotating the whole projector, or by other means such as prisms or mirrors in the light beam or by movement of the projection lens relative to the film. Loud-speakers arranged behind the screen may be selected according to the rotational position of the projected beam. The projecting system may be used with an illuminated or coloured surround, such as described in Specifications 514,673 or 727,696. In the case of stereoscopic projection both beams are controlled together. Recording, Fig. 2. Wipers 21, 22, are moved over associated potentiometers, in accordance with the movements of the camera 20 in azimuth and elevation, respectively, and apply voltages corresponding to these movements to modulator amplifiers 24, 25 in each of which a separate carrier is frequency or amplitude-modulated in accordance with the input signal, and recorded on a tape 26 running synchronously with the film. Projection, Fig. 1. The azimuth and elevation signals recorded on the tape, which is driven synchronously with the projector 2, are applied by pick-offs 3, 4 to demodulator amplifiers 5, 6 respectively. The output signals therefrom are compared in servo-amplifiers 7, 8 respectively, with azimuth and elevation projector position voltages derived, e.g. from potentiometers 11, 12. Servomotors 9, 10 are driven in accordance with the difference voltages to align the projector in azimuth and elevation respectively with the angular position indicated by the record.
Patent GB-731976-A (GB)
Title: Multiple sheet glazing units
IPC: C03B23/24
Filed: 1953-02-02
Abstract: 731,976. Double-paned glazing units. LIBBEY-OWENS-FORD GLASS CO. Feb. 2, 1953 [July 25, 1952], No. 2850/53. Class 56. In the making of double-paned glazing units the bending and sealing of the edges of the spaced panes takes place while the panes are moving continuously past concentrated heaters. A unit 41 having the section shown in Fig. 9 is thus produced, the line of weld 47 being nearer one pane 39 than the other, 38, and the inner walls 43 of the side portions being substantially at right angles to the panes whilst the outer walls 44 are oblique. The lower pane 39 is carried on a rectangular framework 48, Fig. 12, and the upper pane 38, spaced from and initially overlapping the lower, is supported by stepped blocks 59 adjustably and pivotally mounted on members 55 formed on a part of the framework. The framework is continuously passed on a conveyer 32, Fig. 3, from a preheating station 33, through the bending and sealing zones A, B and then through an annealing zone C. At zone A the bending and sealing of one pair of opposite edges takes place, and at zone B the other pair of edges are similarly treated, suitable transfer devices being provided at the corners of the conveyers. During their passage through zones A and B the edges of the panes are acted on by burners 104, 105, Fig. 12, carried by units 89 formed on supports which project through the coping of the treatment chambers. As the supports 48 approach the burners the blocks 59 are automatically swung, in turn, from beneath the upper pane 38 thereby enabling the edges of that pane to bend. The movement of the supports 48 also automatically imparts to the burner units whatever aligning movement is necessary.
Patent GB-967088-A (GB)
Title: Improvements in or relating to condenser microphones
IPC: H04R19/04
Filed: 1962-01-25
Abstract: 967,088. Microphones; vibratory diaphragms. K. SCHOEPS, [trading as SCHALL-TECHNIK DR.-ING. KARL SCHOEPS]. Jan. 25, 1962 [July 8, 1961], No. 2938/62. Heading H4J. The directional characteristics of a condenser microphone are altered selectively by sliding valves which alter the impedance of a back cavity. The valves may be operated electromagnetically. As shown in Fig. 1 a diaphragm 1 mounted adjacent a counter-electrode 4 has a cavity 10 in a plate 8 behind the counterelectrode which is perforated as at 7. The boundary portion 16 of the plate 8 is slotted so that the cavity communicates with an annular cavity formed by a slider 12 which in the position shown is sealed off. The cavity 10 also communicates, through apertures such as 15, with space at the rear of the microphone, such communication being made resistive by the constriction presented by the peripheral rebate 14 on a plate 11 secured to the rear of the microphone. A slide valve 18 mounted on the outside of plate 11 may be moved upwards from the position shown to seal off the apertures 15 in which position, provided valve 12 is also closed, the microphone is pressure responsive. If valve 12 is closed and valve 18 is opened to introduce resistance, the microphone is said to be directional. If valve 12 is opened then, regardless of the position of valve 18, the microphone is undamped rearwardly and has a figure-of-eight characteristic. In the simpler arrangement of Fig. 3, in which the front of the diaphragm is covered by a permeable plate 28, a single valve 25 is provided to damp the large breathing apertures 27 in the plate 21 which defines the back cavity 22. When the valve is moved downwards the cavity is given free access to the rear and the microphone is transferred from a directional to a figure-of-eight characteristic. Without the peripheral rebate the valve may be made to close the apertures 27 completely to provide a circular characteristic. In the construction of Fig. 4 the damping plate 31 is fixed and the plate 32 defining the back cavity is movable to open the large breathing apertures 33. In Fig. 5 the directional damping is permanently provided by a plate 42 and a single valve 46 opens or closes the breathing holes 44 giving access to the back cavity. In this embodiment the diaphragm works in pushpull between counter-electrodes 4 and 48. Fig. 6 shows the arrangement of Fig. 1 modified to operate the valves 12 and 18 electromagnetically. Coils 51 and 52 can be energized ,to displace the valves against rubber rings 53 and 54 which normally hold the valves shut.
Patent GB-759941-A (GB)
Title: Improvements in or relating to garden trowels
Inventor: DOWSETT HAROLD JOHN
IPC: A01C5/02
Filed: 1954-02-01
Abstract: 759,941. Garden trowels. STAINLESS DEVELOPMENTS, Ltd. Feb. 4, 1955 [Feb. 1, 1954], No. 2948/54. Class 6 (2). [Also in Group XXIII] A garden trowel comprises a blade 1 of sheet metal, preferably stainless steel, bent to arcuate shape, and a handle 18 secured inside the upper part of the channel, the blade being formed with a series of graduation marks parallel to the axis. The blade is formed with a pointed lower end and is strengthened by bending near the lower end of the handle. The handle is mainly of circular crosssection and the adjacent part of the blade is bent to accommodate it and extends for more than half its length. The handle is provided with acut-away portion 20, 22, 23 to provide a support for the thumb.
Patent GB-328914-A (GB)
Title: Improvements in receptacles for dispensing liquid, semi-liquid or pasty materials
IPC: A47G19/18
Filed: 1929-01-29
Abstract: 328,914. Iochum, M. Jan. 29, 1929. Condiment receptacles.-A receptacle for dispensing liquid or pasty materials comprises a cylindrical casing a with an inwardly extending wall c and a vane h which is movable about the cylinder axis and has a stem extending through the cover g of the receptacle for manipulation. The discharge takes place through an ascending and descending passage e<1> in the wall c. A plug f gives access for cleaning the passaga e<1>. The receptacle may be of earthenware, glass, white metal, or ebonite.
Patent GB-1358993-A (GB)
Title: De-reeling cover
IPC: H01F41/06
Filed: 1972-01-17
Abstract: 1358993 Roll holders ENGINEERING & GLASSFIBRE DEVELOPMENTS Ltd 17 Jan 1972 [25 Jan 1971] 3050/71 Heading A4G [Also in Division D1] A cylindrical package cover 11, Fig.1, has a conical top 12 in which is a ceramic bush 15 through which the filamentary material of the package can be withdrawn. The cover 11 may have outwardly extending generally V-sectioned ribs 21 within which are brushes that press against the enclosed package to prevent overrunning of the filamentary material. The lower end of the cylindrical portion 11 has an outwardly directed rim 26 with keyhole apertures 27, 28 through which screws may pass to secure the cover to a base. The bush 15, Fig.3, may have an annular groove 17 into which the frusto-conical top 12 may be integrally moulded. The cover 10 may be of glass-reinforced synthetic material and may have inspection openings in it.
Patent GB-657020-A (GB)
Title: Improvements in superheated vapour heat engines working according to a continuous cycle
IPC: F01K19/02
Filed: 1949-02-04
Abstract: 657,020. Power generating system. GUARINI, E. Feb. 4, 1949, Nos. 3099 and 3100. Convention dates, Feb. 20. 1948, and July 8, 1948. [Class 122(iii)] Vapour from an insulated vessel 1 receives heat in the superheater 2 and is then expanded in the engine 3. This engine drives the load and also a compressor 4 which raises the vapour pressure to that of the storage vessel, wherein the vapour is condensed. Liquid is led from the vessel 1 to an atomiser 6 to maintain the vapour in the compressor in a saturated condition.
Patent GB-423130-A (GB)
Title: Variable pitch propeller
IPC: B64C11/36
Filed: 1934-01-30
Abstract: 423,130. Air-screws. DUSSI, R., 23, Birinci Vakif Han, Istambul. Jan. 30, 1934, No. 3111. Convention date, Jan. 30, 1933. [Class 114] A variable-pitch propeller of the kind in which blades are rotatable on their axes by the axial displacement of a member in the hub, which displacement can be effected by hand or automatically, includes arranging a rod longitudinally movable on the blade roots for effecting the change in pitch, such longitudinal displacement resulting from the axial displacement of the control member which consists of two rods fitted one into the other, one set of rods being set by the pilot and the other being controlled automatically by a centrifugal regulator. The hollow cylindrical block 8 provided with ribs 9 is mounted in guide ribs 7 in the blade root and over the trunnion 4 of the boss. Inside the trunnion is a rod 25, radial movement of which results in a screwed sleeve 28 rotating, carrying with it a disc 29 which at its periphery engages slots 31 inside the blade root, whereby the blade participates in the rotary movement and receives its change of pitch. The rod has roller contact with an inclined slot 24 in a block 23 movable axially in the boss. Secured to the block 24 is a rod 38 which is connected exteriorly of the boss with a flange ring 40 under the control of the pilot. Axial movement of the rod causes the conical member 53 to engage detents 54, whereby the automatic control is disconnected For controlling the pitch automatically, weights 37 are mounted non-rotatably on screw rods 45, 46 and by their outward movement produce rotation of the rods which through bevel gearing is communicated to rods 36. These rods are connected by the detents 54 with a sleeve 33 having an exterior thread 44 engaging a corresponding thread within the block 23. Rotation, therefore, of the shaft 36 produces an axial movement of the block 23 with a resultant change in pitch. The block is restrained by a a spring 24<1>.
Patent GB-489767-A (GB)
Title: Method of stabilising soil mixtures
IPC: C08L95/00
Filed: 1937-02-03
Abstract: A soil mixture containing not less than 15 per cent of particles smaller than 0,074 mm. in diameter and not less than 5 per cent of particles smaller than 0,001 mm. in diameter is converted into a moisture-resistant, hard mass in which the natural cohesive and binding properties of the smaller particles are utilized, by mixing therewith at about atmospheric temperature at least sufficient water to bring the consistency of the mixture to the plastic limit and an aqueous emulsion of bituminous material in amount insufficient to act by itself as a binder but sufficient to coat the particles with a thin adsorbed film of bitumen capable of inhibiting re-absorption of water by the smaller particles, and thereafter drying, without further mechanical mixing, to the extent attainable by air-drying. The material may be compacted, as by rolling, before drying. "Plastic limit" is defined as the lowest moisture content at which soil can be rolled into a coherent thread 1/8 " in diameter.  Formulae are given whereby the required amount of bitumen to be added may be calculated from the proportions of differently-sized particles present in the soil mixture. Petroleum bitumen, natural asphalt, or tar may be used, as emulsions, in water containing a small amount of caustic alkali and, if desired, a stabilizer such as casein, dried skimmed milk, or animal blood, and a protein preservative such as formalin. Soils deficient in small particles may be rendered suitable for treatment by adding clay.  In this case the bitumen emulsion may be mixed with the clay and the mixture incorporated with the soil.