baber/WOPTO huggingface dataset:
Patent GB-1478887-A (GB)
Title: Shot-blasting machines
IPC: B24C3/08
Filed: 1975-08-21
Abstract: 1478887 Blasting TILGHMAN WHEELABRATOR Ltd 21 Aug 1975 [19 June 1974] 27159/74 Heading B3D  A shot-blasting machine comprises a chamber 10 housing an openwork carrier 11, in the form of a tunnel with perforated walls, for holding a workpiece 13, such as a casting from which sand is to be removed, and adapted to be vibrated, and impellor means 18A, 18B, 18C for throwing shot against the workpiece. The openwork tunnel 11 protrudes from both ends of the chamber and is given a vibratory movement by an eccentric arrangement 14 rotated by an endless drive from a motor 15 to convey workpieces supplied from a feed conveyer 22 through the chamber 10 and on to a discharge conveyer 23. The tunnel is formed of steel bars 12 which are surrounded by a bridge structure 17 and arranged to orientate the workpiece in different attitudes along the tunnel length so that shot thrown upwardly by the impellor 18A, laterally by the impellor 18B and downwardly by the impellor 18C and constrained by guide plates (not shown) removes sand from the workpieces, the jolting of the tunnel also assisting in the removal of the sand. Kick bars, guide bars or ramps are provided in the tunnel adjacent its exit to turn, shake or jolt the workpieces so as to remove abrasive therefrom. In another embodiment, the tunnel is formed of two sections one above the other with overlapping portions and a turnover plate so that as the workpieces being cleaned fall from the first portion they turn over on reaching the second portion so as to present other surfaces to the shot from the impellors. Shot and debris fall to a screw conveyer and is carried to a shot removal vibrating conveyer 25 having vibrating sieves. Shot and small debris are carried by a screw conveyer 26 to a bucket elevator 27 which delivers it to a shoot 28. A screw conveyer 29 carries the shot and small debris from the shoot to a rotary sieve separator from which clean shot is fed along shoots 31 to the impellors.
Patent GB-281452-A (GB)
Title: Improvements in or relating to stop and household taps and other screw-down valves
IPC: F16K43/00
Filed: 1926-10-30
Abstract: 281,452. Openshaw, W. Oct. 30, 1926. Valves or cocks fitted with independentlyactuated supplementary valves.-In stop or household or other screw-down valves wherein a supplementary plug valve is provided to shut off the supply to enable repairs to be effected &c., the plug valve is arranged in the casing below the main valve in a downwardly slanting hole so that leakage can be allowed or, by removing the plug, the supply pipe can be conveniently flushed. The supplementary plug valve 9, Fig. 1, provided with a conical or rounded end 10, is threaded into an inclined hole 8 formed in a thickened portion 3 of the casing below the outlet passage and opening into a chamber 5 below the main valve 1. An inclined valve seating 7. is provided at the junction of the supply passage 6 with the chamber 5. A slot 11 or recess for reception of a tool is formed in the end of the plug valve and a fluid tight closure is effected by a flanged screw-plug 12 and washer 13. In the, form shown) in Fig. 2, the threaded plug spindle 23 is screwed into a sleeve 21 which itself is screwed into the threaded. opening 18 being retained in positdon by a set screw 22. Each screwed member is slotted or formed to facilitate manipulation by a tool, and by double adjustment thereof, wear on the valve. surfaces can be distributed.
Patent GB-717562-A (GB)
Title: Improvements in or relating to spray nozzles
Inventor: WAHLIN FRED WILLIAM
IPC: F02M61/00
Filed: 1952-10-30
Abstract: 717,562. Spray-producers. SPRAYING SYSTEMS CO. Oct. 30, 1952, No. 27290/52. Class 69 (3) A spray nozzle includes a whirl chamber 14 with a concentric discharge orifice 15, and an eccentric annular enlargement 22 at the rear end of the chamber into which a tangential inlet 23 is led. The whirl chamber wall flares outwardly into the enlargement which is closed by a plate 24, and the inlet 23 consists of a groove partly covered by the plate. The latter is held within the end of a fitting 25 slotted at 38 and supporting a cylindrical strainer 29. Liquid from a pipe 21 passes through the strainer and slots to an axial passage 26 and then via slots 32 in the end of the fitting 25 to the tangential inlet.
Patent GB-741526-A (GB)
Title: Improvements in flexible hoses
IPC: B05D5/06
Filed: 1953-10-05
Abstract: 741,526. Hose pipes. INDUSTRIAL SYNTHETICS CORPORATION. Oct. 5, 1953 [Oct. 23, 1952], No. 27290/53. Classes 99(1) and 99(2). [Also in Group XXIX] In a seamless, multi-tube extruded hose of elastomeric material, such as polyvinyl chloride, polyethylene, natural or synthetic rubber, each individual tube has a cross-sectional area related to the total cross-sectional area of the conduit feeding fluid to the hose as a reciprocal of the number of tubes, the tubes A, B, A<SP>1</SP> being disposed side-by-side to provide a broad flat base so that the hose can be laid flat on the ground and wound flat, ribbon-wise onto a reel. As shown in Fig. 3, the wall of each tube A, B, A<SP>1</SP> is provided with longitudinally-spaced punctures 20 ... 25 arranged in pairs to avoid interference between jets of water which issue from the punctures, the tubes A, A<SP>1</SP> having punctures 20, 21 and 22, 23 disposed such that, respectively, the trajectories of the jets are at angles of 45 degrees and 88 degrees to the ground level, and the punctures 24, 25 in the tube B being such as to give trajectories of 70 degrees. One end 10 of the hose is closed, the other end being provided with a coupling in which the connecting walls of the tubes are slit to form a single tube secured together with a reinforcing tube 12, Fig. 9, to a sleeve 13 by the crimping of a ferrule 14, the sleeve receiving a loose nut 15.
Patent GB-885184-A (GB)
Title: Power plant which includes two engines
Inventor: PETRIE JAMES ALEXANDER
IPC: F02C9/42
Filed: 1959-08-10
Abstract: 885,184. Gas turbine plants. ROLLSROYCE Ltd. Aug. 3, 1960 [Aug. 10, 1959], No. 27342/59. Class 110 (3). A power plant comprising a plurality of gas turbine engines has fuel supply adjustment means which, when the power of one of the engines falls below a predetermined value, adjusts the fuel supply to at least one other engine of the plant. The invention is described with reference to a twin-engined aircraft provided with a first gas turbine engine driving a propeller through an epicyclic gear train 11 and a second gas turbine engine driving a propeller through an epicyclic gear train 11<SP>1</SP>. The sun gears 10, 10<SP>1</SP> are connected to the engines and the planet gears 12, 12<SP>1</SP> to the propellers. The annulus gears 13, 13<SP>1</SP> are mounted for limited rotary movement within cylindrical casings 14, 14<SP>1</SP>. The annulus gear 13 has an arm 15 connected to a piston 16 in a cylinder 17. The arrangement is such that should the first engine fail, the annulus gear 13 will move to reduce the pressure in the conduit 25 and on one side of the piston 23. The spring 24 will move the piston 23 which in turn will cause the link 30 to move downwards and force the opposite end of the lever 26 against the cam 33. The cam 33 is fixed for any given position of the fuel supply control lever 38 of the second engine. The engagement of the lever 26 with the cam 33 causes movement of the plate 32, the extent of which movement depends upon the angular position of the cam 33. Movement of the plate 32 alters the position of the fulcrum 47 of the lever 43 and so cause movement of the link 44 which acts on the fuel adjustment device 45 to increase the fuel supply to the second engine. At the same time, the micro-switch 48, 49 will close and the warning light will indicate to the pilot the failure of the first engine. A cam 51 may be rotated by a handle 53 to engage an abutment 54 so that failure of the first engine will not increase the fuel supply of the second engine. The cam 51 may be also used for ground running of engines without interference from non-running engines. The system may be arranged to operate at take-off only by means of a movable stop linked to the throttle lever to prevent operation of the emergency device unless the throttles are nearly fully open. In a modification, Fig. 2 (not shown), the cam 33 is replaced by a stop adjustable independently of the throttle lever position. In another modification, Fig. 3 (not shown), the piston 23 is arranged to energize the circuit of an electric motor which positions the fulcrum of the lever 43.
Patent GB-1427725-A (GB)
Title: Fluid flow responsive devices
IPC: F16K31/08
Filed: 1972-06-12
Abstract: 1427725 Valves J F EARDLEY Ltd 6 June 1973 [12 June 1972] 27349/72 Heading F2V A flow-control device comprises a first permanent magnet 10, Fig. 1, movable upwardly under the influence of fluid flow between an inlet 18 and an outlet 20, to thereby upwardly repel a second permanent magnet 24. The upward movement of the magnet 24 throttles flow of air from a chamber 28 to vents 34 and thereby increases control signal pressure delivered through a conduit 38. In an alternative embodiment, Fig. 2 (not shown), raising of the second magnet obstructs flow between a pair of spaced coaxial conduits (44, 48) to produce the changes in signal pressure. The first magnet also functions as a non-return valve. The body 16 may be made of glass, e.g. for beer dispensing apparatus. The first magnet is carried by a plunger 12 having peripherally apertured discs at its ends. Alternatively, the first magnet may constitute the plunger or it may be in the form of a sleeve for fluid flow therethrough. The plunger may be such that the fluid merely impinges against it. At least one of the magnets may be biased to its rest position by a spring whereby the device need not be vertically arranged. The second magnet may instead be arranged at right angles to the first magnet and could be mounted for pivotal movement. The device may be used in a liquid measuring and dispensing unit for controlling means for inhibiting the operation of a valve controlling the unit, until a full measure of liquid has been discharged from or supplied to the unit.
Patent GB-828654-A (GB)
Title: Improvements in or relating to magnetic trigger circuit arrangements
IPC: G11C7/04
Filed: 1957-08-30
Abstract: 828,654. Circuits employing bi-stable magnetic elements. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 30, 1957 [Sept. 4, 1956], No. 27386/57. Class 40 (9). In a circuit in which bi-stable magnetic cores are used to store binary information, the magnetizing currents are arranged to reduce with increased temperature so as to overcome variations of output signal level and changeover time which arise due to the effects of temperature change on the core magnetization characteristics. As shown, the magnetizing current in the row windings P of a number of cores K1, K2, K3 is supplied by a source Vb and is gated by a transistor 1, the reduction of current with increased temperature being effected by a potentiometer circuit comprising a fixed resistor R1 and a temperature-dependent resistor R2 having a negative temperature coefficient. The circuit includes a capacitor 4 which decouples pulses from the voltage source.
Patent GB-782324-A (GB)
Title: Improvements in or relating to tool posts and tool holders for lathes or similar machines
Filed: 1955-09-26
Abstract: 782,324. Lathe-details. DAUGUSTA, N. D. Sept. 26, 1955, No. 27392/55. Class 83 (3) A lathe tool-post has spaced channels 2 along opposite edges which converge towards one another and are adapted to be slidably engaged by converging flanges on a tool-holder 22, a cam 11, adjustable within the tool-post, operating a pressure-element 18 to clamp the flanges against the adjacent sides of the channels. The tool-post 1, Fig. 2, is secured to a rest 8 by a central bolt 3 engaging aT-slot 7 in the rest. The post is channelled at its four corners to produce dovetail-sides for engagement by the tool-holder 22. The latter carries a tool-bar 23, Fig. 4, and is provided, on the face engaging the tool-post, with inturned projections 31 which engage the corner channels 2 on the post. A lug 34 on the holder carries a height-adjusting screw 38. Spring- pressed balls 33, Fig. 2, projecting from the engaging face of the tool-holder 32, hold the latter in its adjusted position while clamping is effected. Each face of the tool-post has a spring-retracted plunger 18 therein which can be forced outwardly to engage and clamp the tool-holder by the cam-ring 11, Fig. 2. The latter is rotatable within a central bore of the tool-post and around the reduced diameter of a closed nut 12 for clamping the tool-post in adjusted position, in conjunction with the bolt 3. The top portion 43 of the cam-ring, and similarly the top of the nut 12, have ratchet-teeth 44. A hand-lever 41 is provided with a boss which fits over these portions, and by moving a latch 49 to one of two positions, a pawl is released either to operate the clamping nut 12 or to move the cam-ring 11 to release or secure the tool-holder.
Patent GB-889782-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L21/00
Filed: 1960-08-08
Abstract: 889,782. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 8, 1960 [Aug. 11, 1959], No. 27401/60. Class 37. In a method in which a conductor is secured to a semi-conductor crystal by thermo-pressure, i.e. by pressure and heating to between 100‹ C. and the eutectic temperature of the conductor and the semi-conductor, the crystal is first soldered in position on a carrier plate. The pressure may be between 350 and 700 kgms/cm.<2>. Fig. 2 shows a silicon crystal wafer 1 soldered by a layer 3 comprising tin and antimony to a nickel carrier plate 2. An aluminium wire 6 is pressed on to the silicon in hydrogen, by die 7 while the whole is heated to 325‹ C. by element 5. Fig. 3 shows the final form of the device, and the invention is applicable to diodes, transistors and photo-electric arrangements.
Patent GB-889640-A (GB)
Title: Process for the manufacture of preparations of solid substances
IPC: C09B67/42
Filed: 1959-08-11
Abstract: A polyamide is heated in a closed vessel at a temperature between 100 DEG  and 200 DEG C. with a dispersion of a pigment in a liquid which does not dissolve the polyamide at temperatures below 100 DEG C. but dissolve it at temperatures above 100 DEG C., the heating being continued until the polyamide has dissolved, and the resulting mixture being cooled to a temperature sufficiently low to precipitate the pigmented polyamide.  Specified polyamides are poly-S -caprolactam, poly-o -aminoundecanoic acid and polyhexamethylene adipamide.  Specified pigments are carbon black, titanium dioxide, cadmium yellow, iron oxides, chromium oxide, copper phthalocyanines, anthraquinone pigments, azo and dioxazine dyestuff pigments, rubicene and optical brightening agents.  Specified liquids are water, water-soluble alcohols or ketones, lactones, amines, amides and sulphoxides and mixtures of 50 or more per cent water calculated on the total weight of the liquid with a watersoluble alcohol or ketone, lactone, amine, amide or sulphoxide.  In the examples, polyhexamethylene adipamide, poly-S -caprolactam and polyaminoaminoundecanoic acid chippings are pigmented with copper-b -phthalocyanine, chlorinated copper phthalocyanine, dipyrazoleanthronyl, linear quinacridine, cadmium yellow, carbon black, titanium dioxide, <FORM:0889640/IV (a)/1> rubicene, periflanthene, indanthrone, <FORM:0889640/IV (a)/2> or nigrosine black bases, the pigments being employed in dispersion in methanol, acetone, dimethyl formamide and water alone or admixed with g -butyrolactone, methanol, acetone, dioxane or pyridine, the dispersing agent exemplified being sodium dinaphthyl-methane sulphonate.  The resultant powder may be admixed with polyamide chippings and melt spun.
Patent GB-1467165-A (GB)
Title: Positioning system
IPC: G05D3/12
Filed: 1974-06-21
Abstract: 1467165 Automatic control INTERNATIONAL BUSINESS MACHINES CORP 21 June 1974 [5 July 1973] 27527/74 Heading G3N A positioning system for moving a member to a target position defined in relation to a group of spaced and mutually distinguishable position indications, comprising an actuating means responsive to a feedback signal formed by combining a first position signal representative of position of member relative to an adjacent position indication and a second position signal representing separation of adjacent position indication from the target position.  As shown, Fig. 6A a pattern of servo signals, interspersed between operation data, are recorded radially on a disk surface as shaded zones having a N polarity and unshaded S zones, which are bounded by transition zones 102, 104. A servo head 14, coupled to a read head, moves in a direction 100 while the disc is rotated in a direction 101. The pulses derived by the servo head from the passage of transitions such as 103 provide coded patterns, Figs. 6B-6J, (not shown), over time intervals 1-6 uniquely defining the position of the servo head within a group of 6 tracks, which is the range over which a linear positioning control action is effected. During a positioning operation the head 14 is brought within the track group containing the target track by a seek circuit counting track groups passed. When a difference count shows that the head is within 3 tracks of the target track the seek circuit is disabled and a track following circuit enabled. The track following circuit, Fig. 9, provides a position error signal from a summing amplifier 250 receiving signals from peak detectors 248, 249 responsive to bias voltages or pulses on line 153 from the servo head 14, applied through gate switches A-F, closed according to the position of the head 14 in relation to the target track as de-coded by a de-coder 202. Target track information is provided from an address register 200 and the de-coder is timed through a shift register 201 responsive to pulses from a phase-locked oscillator, (not shown). The gates C & D constitute means for producing a first position signal which are combined, for certain positions of the head 14 relative to the target track, with a second position signal from a means constituted by gates A, B, E and F, in summing circuits 246, 247.
Patent GB-941697-A (GB)
Title: Brightness indicating devices for photographic and cinematographic cameras
IPC: G03B17/20
Filed: 1962-07-18
Abstract: 941,697. Photographic cameras. EASTMAN KODAK CO. July 18, 1962 [July 18, 1961], No. 27532/62. Heading G2A. [Also in Divisions G1 and G4] A photographic camera includes brightness indicating device comprising a photo-electric cell receiving light from a predetermined angular field and energizing a measuring instrument having a pointer which causes an indicator lamp to flash when the brightness of the field lies below a predetermined value. The camera is provided with automatic exposure control and includes a photovoltaic cell 16 Fig. 1 and a galvanometer 22. When the light falling on cell 16 falls below a predetermined value, the galvanometer pointer 24 meets a contact 36 to complete a circuit through an indicator lamp 34. Light from lamp 34 is visible in the viewfinder and also falls on cell 16, producing sufficient voltage to break contacts 24, 36, to flash the lamp 34. The circuit is only completed on actuation of the camera release 32. A switch 18 is provided for checking the battery voltage. In a modification, Fig. 2, pointer 24 first meets a contact 46 to charge up a condenser 50 until the reverse current through the galvanometer drives the pointer against a contact 52 which passes a current through a lamp 34 and at the same time discharges condenser 50. In another modification, Fig. 4, (not shown) the flashing is performed by a conventional bimetallic flashing lamp.
Patent GB-501908-A (GB)
Title: Improvements in or relating to the moulding of composite blocks for building, pavingand like purposes
IPC: B28B19/00
Filed: 1938-09-21
Abstract: 501,908. Moulding composite blocks. TAYLOR, A. B. Sept. 21, 1938, No. 27561. Addition to 491,397. [Class 87 (ii)] The invention described in the parent Specification is modified in that the removable material comprises sand, sawdust" or the like and is filled into the mould from above, liquid being introduced simultaneously or subsequently through the top or perforated bottom of the mould to increase temporarily the fluidity of the removable material. The liquid may comprise water, mud, liquid tallow, mould oil, &c. As shown, the mould 1 is partially filled with sand &c. 3 and stones 4 and supported in a bath 5 of the liquid. The mould is then vibrated to level the sand 3 and raised from the bath to drain away excess liquid through the perforations 2. A second mould is fitted over the mould 1 and filled with cement which may be vibrated or tamped to compact it. The sand is finally removed. The liquid may be supplied through a hose from above in which case it serves to wash the stones 4. The sand and stones may be placed in the mould simultaneously in the form of an aggregate or the stones may be introduced first. The bottom of the mould may be closed by an imperforate sheet during vibration.
Patent GB-225352-A (GB)
Title: Improvements relating to valves
IPC: F16K31/05
Filed: 1923-11-02
Abstract: 225,352. Gray, T. F. Nov. 2, 1923. Electrically-actuated valves.-A valve-operating wheel a is provided with a slipping clutch, as described in Specification 219,373, so that a predetermined stress on the valve spindle cannot be exceeded, and the wheel is driven by an electric motor c through a pinion b. The motor may be controlled so that it rotates alternately in opposite directions to close and open the valve, and the switch may be operated by a pilot circuit, or by Bowden wire or pneumatic means. The motor circuit mav be broken automatically by an overload switch at the end of the valve movement.
Patent GB-826038-A (GB)
Title: Improvements in and relating to the protective coating of light metals and alloys
Inventor: SUTCLIFFE DAVID ALAN
IPC: B24C11/00
Filed: 1956-09-10
Abstract: A protective coating is applied to a light metal (aluminium, aluminium alloy, magnesium alloy, titanium or titanium alloy) by cleaning its surface, applying a coating of epoxide resin to the cleaned surface, wholly or partly curing the resin, shot-blasting the resin coating, and flame-spraying a metallic coating thereon. The resin coating may be applied by brushing, spraying in a solvent, flame-spraying or dipping.  If necessary several layers of resin may be applied, each being pre-cured before application of the next with a final cure preceding the metal spraying operation.  The metal coatting may consist of tin-bronze, aluminium bronze, steel containing up to 1% carbon, or stainless steel.  Several alternate coatings of resin and metal may be applied.ALSO:A protective coating is applied to a light metal (aluminium, aluminium alloy, magnesium alloy, titanium or titanium alloy) by cleaning its surface, applying a coating of epoxide resin to the cleaned surface, wholly or partly curing the resin shot-blasting the resin coating, and flame-spraying a metallic coating thereon. Several alternate coatings of resin and metal may be applied. The metal coating may consist of tin-bronze, aluminium-bronze, steel containing up to 1% carbon, or stainless steel.