baber/WOPTO huggingface dataset:
Patent GB-207862-A (GB)
Title: Improvements in and relating to steam engines
IPC: F01K19/06
Filed: 1922-09-05
Abstract: 207,862. Rezsny, K., Halasz, E. v., and Paulini, A. Sept. 5, 1922. Engines working on special systems or cycles. -In an engine using superheated steam, the exhaust is discharged through a liquid and then compressed to the pressure in the superheater into which it is discharged. Alternatively, the steam to be compressed for the next cycle may be supplied by a surface condenser in which the exhaust steam of the preceding cycle has been condensed. The compression may be effected in the cylinder itself, if the engine is a reciprocating engine, or in a compressor in one or two stages. The engine may work on a two or four stroke cycle. In the four-stroke cycle engine, Fig. 1, steam at atmospheric pressure and at 100‹ C. is sucked past valve 2 from vessel 6. It is then forced at about 40 atmospherics through chambers 9, 12, and coil 10 wherein it is heated to about 700‹ C. The power stroke is effected with expansion on opening valve 14. The return, exhaust stroke is effected on opening valve 2, and the steam passed into the water in vessel 6 through a perforated pipe 15. The separated oil is let off by pipe 20, fresh water being supplied by pipe 21. Fresh steam is drawn into the cylinder through pipes 4, 3 past valves 18, 2. By using a double-ended cylinder with transverse ports and compression and expansion in opposite ends, the engine is worked on a twostroke cycle. The compressed steam scavenges the cylinder, which may be double-acting, in which case the fresh steam is prepared in a separate compressor. Steam may be taken from another engine instead of the vessel 6. In the turbine plant, Fig. 3, superheated steam enters at 29 and the exhaust passes to the reservoir 6 from which steam is transferred to the superheater by a single or multiple compressor which may be turbo-compressor on the main shaft. A construction is described wherein the exhaust from a reciprocating engine is used in a fourstroke engine. A part of the power cylinder 1 may be cooled. The chamber 6, Fig. 1, might comprise a condenser with pressure below the atmosphere and the suction may be effected from steam above atmospheric pressure. Starting may be effected by injecting water or steam into the superheater, or by using an auxiliary boiler.
Patent GB-1178403-A (GB)
Title: Improvements in Crop Protection Devices.
Inventor: WHITEHEAD ROBERT
IPC: A01M29/32
Filed: 1966-05-31
Abstract: 1,178,403. Protecting plants. WOLVERHAMPTON DIE CASTING Ltd. 24 April, 1967 [31 May, 1966], No. 24066/66. Heading A1E. A device for protecting plants from birds comprises a pair of supports which can be driven into the ground and a flexible line extending between and secured to the supports, means being contained in or carried by at least one support such that the line is extended when the supports are moved apart, and is taken up when the supports are moved together. As described, each support comprises a tuber 11 closed at the bottom by a spike 13 and at its top by a cap 16 to which is secured the end of a nylon line which is threaded through an eye 19 on a weight 20. The weight 20 is a close sliding fit in the tube. One of the supports carries a pair of spring clips whereby the two supports can be held together for storage or transport purposes.
Patent GB-329906-A (GB)
Title: Improvement in internal-combustion engines of the sleeve-valve type
IPC: F01L5/10
Filed: 1929-08-07
Abstract: 329,906. British Continental Motors, Ltd., (Assignees of Meyer, A. J.). Nov. 10, 1928, [Convention date]. Valve gear.-In an engine having sleeve valves 13 which are given a combined oscillating and reciprocating movement by means of links 18 connected to ball-shaped cranks 17 on a valve shaft B, the shaft is fitted with counterweights D, E for balancing the links 18. The weights are preferably at the ends of the shaft and at 180‹ to each other. The shaft is mounted in bearings 24 - - 27.
Patent GB-813028-A (GB)
Title: Apparatus for the production of strips of single ply film or strip stock
IPC: B26D3/00
Filed: 1957-07-30
Abstract: <PICT:0813028/IV (a)/1> <PICT:0813028/IV (a)/2> Apparatus for making films of thermoplastic organic polymeric material comprising an extruder provided with an annular extrusion die, means for inflating the extruded tubular film with air, a pair of coacting rolls for flattening the tubular film, and a device for continuously slitting the travelling tubular film longitudinally to form two separate films, is characterized in that two electrically heated wires disposed in the plane of the flat-pressed longitudinally travelling tubular film, and divergent symmetrically with respect to the path of travel thereof, are each stretched between the two jaws of a support member, the two support members being urged apart by a resilient spreader element in such a manner that the wires engage the two edge creases or folds of the flattened tubular film as it travels from the nip of the flattening rolls to a pair of guide rolls for the single films formed by the slitting of the flattened tubular film by the wires. As shown in Fig. 1, a tubular film 2 is extruded from an annular nozzle 1 and is inflated in the usual manner by compressed air introduced axially through the nozzle in the direction of the arrow A.  After setting by cooling, the tubular film is flattened by passing through a pair of coacting rolls, one of which is shown at 3. Beyond this pair of rolls the flattened tubular film is continuously slit or parted by a device 11-16 into two separate films 2a, 2b, which then pass over guide rollers 4, 5 to reeling drums 6, 7.  The slitting or parting device comprises a rail 11 (Figs. 1 and 2) carrying two identical and symmetrically arranged slides 12, 12a urged apart by the coil spring 13.  Each of the two slides carries a bow or fork 14, 14a the projecting nose 15, 15a of which extends across the edge fold 8, 9 of the flattened tubular film 2.  In addition, each fork 14, 14a carries a slitting wire 16, 16a stretched between the jaws of the fork.  The urging apart of the slides 12, 12a by the spring 13 causes the wires 16, 16a to engage the edge folds 8, 9 of the flattened film as it travels from the nip of the rolls 3 to the guide rollers 4, 5. The wires 16, 16a are about 0.5 to 1.0 mm. thick and are electrically heated to about 200-300 DEG  C.  They melt the tubular film in the folds 8, 9, which are stretched tight by the noses 15, 15a under the action of the spring 13.
Patent GB-1134425-A (GB)
Title: Improvements in and relating to building constructions
Inventor: MEYER KARL DR
IPC: E04D13/15
Filed: 1966-05-31
Abstract: 1,134,425. Reglet and flashing unit. K. MEYER. 31 May, 1966 [29 May, 1965], No. 24117/66. Heading E1W. A reglet and flashing unit for attachment to a wall adjacent to the junction with a roof, floor, terrace, balcony or the like comprises a box-like section member 1 with a slot along one wall 3 formed by two opposed overlapping wall members 4, 5, a plastics flashing strip 6 folded in zig-zag manner being disposed in the section member with one edge 8 extending longitudinally of the member 1 projecting outwardly between the overlapping wall members 4, 5. The other longitudinally extending edge of the plastic strip 6 is secured within the section member. The section member may have the wall 3 secured to temporary shuttering so that it becomes embedded in a cast in situ wall, or may be anchored in masonry. After installation, the plastics flashing strip is pulled out until it extends, for example to the roof below, where its edge 8 is placed above or below the roofing bitumen roofing layer. The solid line 5 shows the form of section member in an intermediate stage of manufacture.
Patent GB-1336330-A (GB)
Title: Method of manufacturing a ceramic ferromagnetic object
IPC: C04B35/26
Filed: 1971-04-19
Abstract: 1336330 Ferrite sols PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [19 March 1970] 24185/71 Heading C1A [Also in Division H1] A ferrite sol is made by adding excess cone. ammonia to an aqueous solution of FeCl 3 , filtering and washing the resultant precipitate, adding to the precipitate an aqueous solution of Cu(NO 3 ) 2 , Ni(NO 3 ) 2  and Mn(NO 3 ) 2  until the proportions of metals in the composition correspond to the ferrite Cu 0À11  Ni 0À16  Mn 1À02  Fe 1À78  O 4 , and then adding cone. HNO 3  until the pH of the sol formed is 3À1. The sol is used in the formation of ferromagnetic bodies.
Patent GB-882698-A (GB)
Title: Improvements in or relating to connecting sockets suitable for printed circuit cards
Inventor: DUNMAN JOHN PERCIVAL GEORGE
IPC: H01R12/72
Filed: 1958-07-28
Abstract: 882,698. Two-part couplings. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. July 21, 1959 [July 28, 1958], No. 24247/58. Class 38 (1). In a multi-point connecting socket for receiving a printed-circuit card 29 each contact element 10 or 11 comprises a portion bent over at a comparatively large radius to form an angle of approximately 30 degrees with the unbent portion which is shaped to pass through a hole in an insulating support 20 and form a wiring tag, alternate contact members being of slightly different shape as shown in Figs. 2 and 3 to permit mounting in different rows of holes so as to give staggered tags, and each bent-over portion 12 or 13 being split longitudinally into two tongues 14, 15 each having a dimple 16 to improve electrical contact. The tag portion is folded transversely as at 17 and is formed with a tongue 18 which engages a shoulder in the support 20 to retain the element in position. Barriers 26 are provided between successive contacts and a barrier 28 co-operates with a slot 30 in the edge of the card 29 to locate the card, the contact portions of which may be reinforced by U-shaped metallic members 31.
Patent GB-150548-A (GB)
Title: Improvements in and relating to the grips or handles of golf clubs, bats, hockey sticks and the like
IPC: A63B49/08
Filed: 1919-11-21
Abstract: 150,548. Flaxman, A. E. Nov. 21, 1919. No Patent granted (Sealing fee not paid). Handles.-The handles a of golf clubs, bats, hockey sticks, &c. comprise a reduced portion a<1> and an outer sleeve b of light rigid wood such as willow or poplar. The central portion may be further reduced and an intermediate sleeve c of cork introduced. The reduced central portion may be tapered or the reduction may be extended to the top of the handle. Specification 8798/15 is referred to. Reference has been directed by the Comptroller to Specifications 5233/96 and 11576/05.
Patent GB-207883-A (GB)
Title: Motor spirit
IPC: C10L1/02
Filed: 1922-09-07
Abstract: Nicotine or other alkaloid is added to an alcohol fuel.  In an example 60-100 gal. of ethyl alcohol or methylated spirit, 40-80 gal. of ether, 25-60 gal. of benzol, and 2-4 oz. of nicotine are mixed together and distilled over lime.
Patent GB-1513894-A (GB)
Title: X-ray sensitive unit
IPC: G03G5/02
Filed: 1975-06-05
Abstract: 1513894 X-ray sensitive assembly EASTMAN KODAK CO 5 June 1975 [7 June 1974] 24296/75 Heading G2X  An x-ray sensitive assembly comprises, in combination, (a) a material comprising a conductive  support and a layer containing an inorganic photoconductor with a metallic atom with an atomic number of at least 48 and sensitive to x-rays, and (b) an image receiving material comprising a conductive support and a layer of pigment to binder in a weight ratio of 2-10:1, the pigment forming active sites for reduction of metal salts when subjected to an electric field, the unsupported surfaces of (a) and (b) being separated by an air-gap of 0.01-20 microns. Visible images are produced by image-wise exposing the unit to x-ray whilst simultaneously or subsequently applying an electric field between the supports separating (b) and optionally treating it with a nucleating agent and then physically developing (b). Specified photoconductors are PbO, Bi 2 O 3 , CdS, CdSe, Sb 2 S 3  and SnO 2  whereas specified pigments are PbI, TiO 2 , tungsten and molybdenum trioxide and barium titanate. The material (b) may have a waterpermeable overcoat such as gelatine. In the Examples, a PbO material is contacted with an overcoated TiO 2  material which may be preflashed by a photoflood before image-wise exposure to x-rays and application of the field. The TiO 2  material is separated, treated with silver nitrate solution and then physically developed with a ferrous-ferric-silver bath.
Patent GB-221363-A (GB)
Title: Improvements in rope fasteners
IPC: F16G11/14
Filed: 1923-09-29
Abstract: 221,363. Johannsen, H., and Madsen, J. Sept. 29, 1923. Capping; loops.-A running - knot is formed on a rope by gripping the end of the rope between the ends b of a saddleshaped metal plate a, the running part of the rope passing through the loop formed by the plate a. A cap e prevents the rope untwisting and a rivet d passes through the ends b and the rope. Alternatively the end of the rope may be gripped at right angles to the running part.
Patent GB-615290-A (GB)
Title: Improvements in and relating to writing machines
IPC: B41J33/00
Filed: 1946-08-15
Abstract: 615,290. Typewriters &c. PALANQUE, C. C. M., and NUNN, G. W. Aug. 15, 1946, No. 24309. [Class 100(iv)] In shorthand typewriter or stenographic machines having type levers striking a platen 7 and operated by key levers 6, the platen and ribbon-feed mechanisms are each provided with a oneway clutch 24b and 27 respectively having pinions 25, 28 engaging a rack 23 slidably mounted in the machine frame and connected to a spring 24a, a universal bar 12 being linked to a pinion 22 engaging the rack so that when the bar is depressed by a key lever the rack is moved in a direction to tension the spring so as to rotate the pinions 25, 28, the clutches 24b, 27 slipping so that the platen and the ribbon are not moved during the printing stroke, and release of the key lever allowing the tension of the spring to return the rack thus operating the platen and ribbonfeed mechanisms. The pinion 22 is linked to the universal bar 12 by a crank 21, intermediate link 20 and a lever 17 carrying the bar 12. Inking-ribbons 35 travel endlessly across the platen and round inking- drums 29, 30 mounted in a pivotal chassis 32 positioned by a plunger 40 to align the required ribbon. The drums are driven by a gear wheel 38 in right angular engagement with a gear wheel on a spindle 26 of the clutch mechanism 27. The platen 7 is supported in slots 16 and is readily removable from the frame 10 by unlatching downwardly-sprung forked lugs' hinged on the frame. Specification 615,291 is referred to.
Patent GB-518191-A (GB)
Title: Improvements in or relating to a method of producing hydrogen peroxide from solutions
IPC: C01B15/03
Filed: 1938-08-18
Abstract: 518,191. Hydrogen peroxide. SCHMIDT, H. Aug. 18, 1938, No. 24359. [Classes 1 (ii) and 32] Hydrogen peroxide is obtained from solutions thereof or solutions capable of liberating the same on heating by heating the solutions under super-atmospheric pressure and then reducing or releasing the pressure whereby a substantially instantaneous vaporization of the hydrogen peroxide is caused. Solutions of persulphates or perborates may be so treated and the solutions may contain a stabilizer such as phosphoric, barbituric or uric acids. 'The initial heating may be effected at pressures of 5-65 atmospheres and temperatures of 200-400‹C. The solution is pumped from a container 2 into a vessel 4. Inert or stabilizing gases (e.g. oxygen or air) are led from a compressor (not shown) through a pressure regulator 15 and valve 5 into the vessel 4. The solution is then conveyed through heaters 6 and valves 8 to atomisers 9 which discharge the finely divided solution into a heated vessel 10. The pressure in the vessel 10 may be atmospheric or 25-250 millimetres of mercury absolute: The upper part of the chamber 10 is provided with a, heated grille 11 which carries a spray-removing mat 12. Packing such as Raschig rings may be placed above the grille 11 and/or adjacent the bottom of the chamber on which any non-volatile liquid may precipitate. Steam may be admitted to the chamber at any point. The vapours which have been released leave the chamber 13 and are condensed. The residue can be withdrawn through pipe 14.
Patent GB-728925-A (GB)
Title: Snap-action electric switches
Inventor: COLDWELL JOHN SIMONS
IPC: H01C10/36
Filed: 1952-09-30
Abstract: 728,925. Switches held set and freed mechanically. GLOBE-UNION, Inc. Sept. 30, 1952, No. 24452/52. Class 38 (5). The switch comprises a flexible actuator 62 movable in a path in which is located a cam means 66 which deflects the actuator from the path, the actuator when released from the cam means controlling the movement of a contact with a snap action. In one form, Fig. 8, when the actuator 62 is moved rectilinearly to the right, the sloping tip 64 of the actuator slides over the upper face of cam means 66, the tip 64 then snapping down over the right hand end of means 66 to engage and depress a block 68 on a contact spring 58 to separate it from a fixed contact 52. On movement of actuator 62 to the left, the tip 64 slides under the cam 66 and holds the contacts open until it snaps up at the left hand end of the cam. The actuator may be secured to a rotary spindle so as to move in a circular path, (Figs. 1 to 6, not shown), the switch then forming part of' a variable resistor. The contacts may be normally-open, normally-closed or of the changeover kind.
Patent GB-1402495-A (GB)
Title: Method for measuring and evaluating ultrasonic test pulses
IPC: G01N29/07
Filed: 1973-05-22
Abstract: 1402495 Ultrasonic testing of materials THYSSEN NIEDERRHEIN AG HUTTEN. UND WALZWERKE 22 May 1973 [30 May 1972] 24464/73 Heading H4D In a method for processing ultrasonic test pulses using a plurality of transducer probes and wherein time gates are produced for the defect and bottom echoes, taking into account the time for the pulses to pass through the probe and a coupling medium, the defect and test sample bottom echo amplitudes being measured and their ratio taken, the amplitudes are corrected for depth, the path lengths of the probes and coupling medium being individually and successively determined and the ratio of the defect and bottom echo amplitudes being determined by obtaining their amplitudes logarithmically and then subtracting. In Fig. 3, the governing equipment provides all the necessary timing pulses for the transmitter and processing circuitry. In the gate control, the time gates, one enframing the expected time for defect echo arrival and one enframing that for bottom echo arrival, are generated. The time for the injected pulse to travel through the probe and coupling medium is gated out. In the echo level measurement section, the amplitudes of the defect and bottom echoes are measured. The depth of the defect is measured in the travel time measurement unit and from this measurement a compensation value is derived from the depth characteristic curve. In this way, the true defect size is obtained from the echo amplitude which has been compensated for its dependence on depth. Additionally, the bottom echo amplitude is compensated from a knowledge of the test sample thickness. The amplitudes are measured logarithmically, subtracted and the answer compensated. The resulting value is discriminated by a threshold detector before being passed as a detected defect to a computer or recording device. Detailed circuitry of the various units is given.
Patent GB-1073625-A (GB)
Title: Photographic silver halide emulsions
Inventor: JURGENS MANFRED
IPC: G03C1/04
Filed: 1964-06-12
Abstract: 1,073,625. Gelatine silver halide emulsions. FOTOCHEMISCHE WERKE BERLIN VEB. June 12, 1964, No. 24528/64. Heading G2C. Gelatine silver-halide emulsions contain 5-50% by weight, based on the gelatine, of a carboxyalkylated dextran and/or a carbalkoxylated starch, preferably having a molecular weight of 5,000- 200,000, to increase the covering power of the emulsion.
Patent GB-599596-A (GB)
Title: Improvements in and relating to the measurement of the frequency of electric oscillations
IPC: G01R23/00
Filed: 1945-09-21
Abstract: 599,596. Frequency measurements. BRITISH BROADCASTING CORPORATION, and GOURIET, G. G. Sept. 21, 1945, No. 24567. [Class 37] A frequency discriminating bridge has a circuit CL in one arm tuned to the reference frequency at which the bridge is balanced, the out-of-balance voltage across diagonal AB, which is proportional to the difference between the reference frequency and the frequency applied at XY, being rectified at D1 and an indicator M1 measuring the current in the rectifier. Preferably, the resonant circuit CL is adjustable, an adjustable circuit Cl, L1 being provided to balance the bridge. The other three arms are preferably resistive. The ammeter M1 may be shunted by a diode D2 to avoid damage due to overload. A filter F removes harmonics. Where the input at XY is a frequency modulated oscillation, the output of D1 may be applied through a diode D3, and valve V3 to a meter M2 to indicate peak modulation.
Patent GB-672654-A (GB)
Title: Wheel covers for motor vehicles
IPC: B60B7/10
Filed: 1950-10-09
Abstract: 672,654. Vehicle wheels. SUPERTI, L. C., BOMBONARTO, L., (trading as SUBOGA). Oct. 9, 1950, No. 24580/50. Class 144 (i). A wheel-covering disc comprises a main bodyportion A with an inner reinforcing - disc B to which is secured an axially - directed ring C carrying devices 4 for detachable engagement with co-operating elements on the wheel. The devices 4 consist of channel-section dogs normally radially thrustoutwardly or inwardlythrough slots 6 in the ring C for engagement with the wheel elements by springs 10. The cover is assembled by snap-action, and may be pulled away by means of a prying-tool inserted in hollow rivets 2 by which the discs A, B are connected.
Patent GB-241383-A (GB)
Title: Improvements in and relating to electric inductance coils
IPC: H01F27/00
Filed: 1924-10-16
Abstract: 241,383. Macadie, D. Oct. 16, 1924. Inductances.-An inductance coil has each layer supported by wedge-shaped spacers a<1> so that the layers b - - b<4> are alternately conical and cylindrical, thereby causing turns between which the potential difference is greatest to be spaced further apart than those between which there is a less potential difference. The spacers a<1>, of which there are preferably eight to each layer of the winding. are fitted at their ends in radial grooves in a casing c and cover-plate d, the innermost set resting on a tubular core a or cardboard, ebonite, &c. A further groove is formed in the cover d to take the lead from the inner end of the coil. Alternatively a former may be provided with grooved cheeks, between which the series of spacers are slipped. After winding, an insulating strip of mica, celluloid, &c. may be fastened round the coil between the side cheeks. The winding may be of insulated wire, or of bare wire with spaced turns, or of two or more wires twisted together. The angle between successive layers may be different. According to the Provisional Specification, the spacing-pieces may be made parallel throughout and have slots, cut at varying depths to take the windings; also more than one layer may be wound over each set of spacers, and each set of wedges may be replaced by a circular wedgeshaped spacing-piece.