baber/WOPTO huggingface dataset:
Patent GB-598423-A (GB)
Title: Improvements in a method of compacting metal powder into complicated shapes
IPC: B22F5/06
Filed: 1945-09-03
Abstract: Articles such as screw-threaded rods, spur and spiral gears and generally having a complicated external shape are obtained from metal powder by compacting the powder into a hollow mass, compressing the hollow mass against the walls of a die of the required shape by an expansible core inserted into the hollow (see Group V), and subjecting the compact thus formed to any known suitable sintering process.  The compact may be made solid (before sintering) by compacting additional powder within the hollow. Large compacts may be built up from a plurality of shells one within the other produced as above.  The powder size referred to is 100 to less than 1 micron diameter and in an example pure iron powder of size corresponding to 325 mesh is first compacted into hollow form in a die in successive half inch layers under a pressure of 1-2 tons/sq. inch.  An expansible member is then inserted in the hollow and expanded to force the powder into the detail of the mould, without additional compacting with a pressure of 1-2 tons/sq. inch, or with additional compacting in an approximate ratio of 1:2 with a pressure of 4-5 tons/sq. inch. The radial or wall thickness of a compact moulded in one stage in this way is given as 1/2 inch to 5/8 inch before the additional compacting (if any) by the pressure exerted internally.
Patent GB-1509196-A (GB)
Title: Apparatus for sensing an electrical property of a heated medium
IPC: G01N27/62
Filed: 1975-04-30
Abstract: 1509196 Flame ionization detector RESEARCH ENGS Ltd 30 April 1975 [21 May 1974] 22673/74 Heading G1N A flame ionization detector has a flame failure sensing thermocouple 24 producing an audible alarm signal from loudspeaker 22. Flame extinction causes the output of differential amplifier to change polarity whereby transistor 41 is switched off and oscillator 42 is switched on to energize the loudspeaker via voltage-frequency converter 21. Re-ignition of the flame provides a path through transistor switch 41 for the signal from electrode 12 which passes to amplifier 14 and is indicative of the concentration of hydrocarbon concentration in air sampled by the detector. This signal is applied through the converter to the loudspeaker to provide an audible signal of pitch variable with concentration of hydrocarbon, and is also applied to a meter 16 via a logarithmic amplifier.
Patent GB-1465829-A (GB)
Title: Drive
IPC: D05B19/00
Filed: 1974-05-21
Abstract: 1465829 Automatic control QUICK-ROTAN BECKER & NOTZ KG 21 May 1974 [22 May 1973] 22741/74 Heading G3N A drive system for a working shaft of a sewing machine comprises a position pick-up synchronized with the shaft, a lock seam control means including a manually operable program setting means and a seam length control means incorporating a stitch count store. As shown a positioning system comprises a seam locking system 10 and a seam length system 11 which operate, through a drive control 12, a governed drive 13 transmissively coupled to the main spindle of a sewing machine, not shown. A synchronizer 14 revolves with the main spindle of the sewing machine and delivers a pulse for each revolution. A program for the system is prepared by producing a sample seam with a switch 28 in a storage position, a lock store 15 receives a starting command and a stitch setter 24 is switched for forward or reverse depending on the lock pre-set on a switch 20. The depression of a pedal for forward motion through a control 35 sets a direction store 29 so that the drive control 12 is switched by a stage 33 to release the immobilized drive 13. Pulses from the synchronizer 14 are passed through a preparation stage 16 to a stitch counter and decoder 18. When the pre-set number of stitches have been counted a switch setter 24 is switched over and a second locking stitch sequence performed or a pattern seam commenced. During a pattern seam a stage 19, pre-setting the locking speed, is deactivated and the synchronizer pulses fed to a counter 31 which registers the number of stitches in the pattern seam. At the end of a pattern seam the pedal is rearwardly depressed and the switches 21, 23 connected to control the end lock. The switch setter is again switched over and the end lock sewn. Finally, a thread cutter 25 is activated and the drive 13 stopped. The switch 28 is moved to a repeat position, and the contents of counter 31 are transferred to a seam stitch number store 30. After a starting lock has been formed, the pulses from the synchronizer 14 are fed to a return terminal of the counter 31 and its contents counted down to zero. The automatic lock system 10 then produces the end lock after the pedal is depressed rearwardly. An overrun indicator 34 provides an indication of overflow of counter 31. A stage 32 limits the seaming speed during the repeat operation.
Patent GB-405707-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: B21D53/50
Filed: 1932-08-15
Abstract: 405,707. Sliding clasp fastenings. COX, L., 94, Gravelly Hill, Birmingham, and LIGHTNING FASTENERS, Ltd., Imperial Chemical House, Millbank, London. Aug. 15, 1932, No. 22817. [Class 44.] The interlocking elements and the sliders for sliding-clasp fasteners are made of aluminium or an aluminium alloy and are subjected in loose form to a surface oxidation and subsequent dyeing of the oxide film. The oxidation may be effected by threading the elements or the sliders on a metal bar which is immersed in a chromic acid bath and made the anode of an applied electric current. The loose elements are subsequently immersed in an aniline dye of the required colour.
Patent GB-698300-A (GB)
Title: Improvements in and relating to polysiloxane resins
Filed: 1951-10-01
Abstract: A composition comprises a heat-hardenable polysiloxane containing between 1 and 2 hydrocarbon radicals per silicon atom, and lead tetraphenyl in amount up to 2 per cent by weight of the resin.  In examples, lead tetraphenyl is added to a toluene solution of (1) a methyl polysiloxane; and (2, 3) a methylphenylsilicone, with subsequent removal of the solvent. Other solvents, such as toluene, benzene, xylene, petroleum spirits and a toluene-butanol mixture, may be used.  Other catalysts disclosed are tin tetraphenyl, mercury diphenyl, mercury ditolyl, bismuth triphenyl, lead tetraethyl and lead naphthenate. Pigments, e.g. titania, iron oxide, lithopone and calcium carbonate, may be used with the resins.  Specifications 542,655, 544,143, 548,911 548,912, 551,649 [all in Group IV (b)], and 597,834 are referred to.
Patent GB-1481595-A (GB)
Title: Substituted benzopyranopyridines
IPC: C07D491/052
Filed: 1976-06-03
Abstract: 1481595 Benzopyranopyridines WARNERLAMBERT CO 3 June 1976 [13 June 1975] 22953/76 Heading C2C The invention comprises compounds of formula and their pharmacologically compatible acid addition salts, wherein R 1  and R 2  are each H, OH or C 1-6  alkyl or alkoxy, or R 1 -R 2  forms - OCH 2 O-; and R 3  is piperidino which is either (a) monosubstituted by C 1-6  alkyl, aryl-C 1-6 - alkyl or COX, X being OH, C 1-6  alkoxy, NH 2 , NH(C 1-6  alkyl) or N(C 1-6  alkyl)2, or (b) 2,2-di- or 2,2,6,6 - tetra - substituted by C 1-6  alkyl. These compounds are prepared by reacting N- unsubstituted benzopyranopyridines with the intermediates ClCH 2 CH 2 R 3 . The preparation of starting materials HOCH 2 CH 2 R 3 . is also described. Therapeutic compositions having brochodilator activity comprise compounds of the above formula and may be administered orally or parenterally.
Patent GB-199982-A (GB)
Title: Improvements in means for securing single acting jig conveyor engines in position in mines or other places
IPC: B65G27/08
Filed: 1922-08-23
Abstract: 199,982. Ridgill, E. Aug. 23, 1922. Jigging conveyers. - A single acting jigging conveyer engine b is carried by a frame a provided at one end with a loop d which is passed round a fixed pit prop f or other column. Specification 199,981 is referred to.
Patent GB-1339956-A (GB)
Title: Method and device for hot gas engine or gas refrigeration machine
IPC: F02G1/05
Filed: 1971-04-19
Abstract: 1339956 Hot gas engines S K NOOS 19 April 1971 [2 March 1970] 22976/71 Heading F1S [Also in Division F4] A hot gas engine, gas expansion refrigerator or heat pump comprises two cylindrical work chambers 12, 14 having volumes which are varied in substantially inverse relationship by a single reciprocating piston assembly 16 having portions 16a, 16b which drives or is driven by a shaft 22. Working gas is stored in a plenum chamber 46 for closed cycle operation or from ambient atmosphere for open cycle operation. The gas is passed into the primary work chamber 12 during a first period of time corresponding to a predetermined percentage e.g. 75% of the forward stroke of the piston assembly in which the volume of the chamber increases via a valve arrangement 54, a thermal regenerator 28 and a heat exchanger 30. The exchanger 30 supplies heat to the flow via a burner 36 in the case of a hot gas engine and acts a refrigerator load for a refrigerator. In the reverse stroke of the piston assembly, gas from the primary chamber flows through the exchanger 30, regenerator 28 and a valve 56 into the chamber 14 substantially when the volume is zero and when the volume is increasing i.e. the reverse stroke. In the subsequent forward stroke the gas in the chamber is recompressed to the pressure of the gas in the plenum 46 to which it passes via a valve 58 in a closed cycle operation or to exhaust to ambient atmosphere in an open cycle. The plenum is preferably cooled by ambient air to its original temperature for use in a new work cycle in a hot gas engine. Selection of the cross-sectional area ratios of the chambers 12, 14 and/or proper termination of the flow into the primary chamber enables the gas transferring between the chambers to be at a lower pressure than during injection into the primary chamber 12. In the embodiment of Fig. 4 the piston assembly has a central portion interconnecting the two portions 16a, 16b which move reciprocally parallel to a predetermined axis. In one form of the hot gas engine, Fig. 5, (not shown), a rotatably supported shaft has first and second pistons formed by vanes extending radially therefrom and the work chambers have a cylindrical housing thereabout and in a further engine, Fig. 6, (not shown), the work chambers are formed by separate cylinders of different cross-sectional areas, each having a separate piston mounted on a common shaft.
Patent GB-303424-A (GB)
Title: Improvements in the manufacture and production of a black trisazo dyestuff
IPC: C09B35/362
Filed: 1927-09-01
Abstract: 303,424. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 1, 1927. Trisazo dyes.-A black trisazo dyestuff is obtained by diazotizing p-aminobenzeneazo-2-amino- 8-naphthol-6-sulphonic acid obtained by acid coupling, coupling in alkaline solution with 2 : 8 : 6-acid, rediazotizing, and coupling with mphenylenediamine. Alternatively one of the components may carry a further sulphonic group. The products have good fastness on cotton and on viscose and like artificial silks but not on acetate silk and are therefore valuable for obtaining colour effects on mixed fabrics containing acetate silk and other artificial silks or cotton or both. The following examples are specified. (1) Diazotized p-nitraniline is coupled in acid solution with 2 : 8 : 6-acid, the monoazo dyestuff is reduced with sodium sulphide, the product is diazotized and coupled in sodium carbonate solution with 2 : 8 : 6-acid, and the separated disazo dyestuff is diazotized and coupled with m-phenylenediamine. (2) The reduced monoazo dyestuff obtained as in (1) is diazotized and coupled in sodium carbonate solution with 2- amino-8-naphthol-3 : 6-disulphonic acid, and the separated disazo dyestuff is diazotized and coupled with m-phenylenediamine. Reference has been directed by the Comptroller to Specifications 19743/92, 7330/93, and 20278/97.
Patent GB-508264-A (GB)
Title: Improvements in or relating to the treating, impregnating or moistening of bulk products, for example organic products, particularly tobacco
IPC: A24B3/02
Filed: 1938-08-05
Abstract: 508,264. Conditioning food, tobacco, &c. GUARDITE CORPORATION. Aug. 5, 1938, Nos. 23181 and 23182. Convention dates, Aug. 26, 1937 and May 2, 1938. [Classes 49 and 130] Organic or other products such as tobacco, dates, currants, &c. are treated in bulk by producing a subatmospheric pressure on the product and substantially freeing it from non- condensible gas; and then introducing liquid water, alcohol, ether, or other volatile liquid in an extremely fine state of division preferably in the presence of steam or vapour from the liquid, whereby water or liquid is condensed within the product. Instead of pure water, a solution of sugar or glycerine may be used for impregnating materials other than tobacco. In the apparatus shown, a vacuum tank 10 has a pipe leading to an evacuating system, a pipe for the introduction of steam, and a pipe 15 leading to a perforated ring 16 for the introduction of hot water. The tank is evacuated to an absolute pressure of from 3 to ¢ inch of mercury and the water may be introduced under pressure at temperatures up to 280‹ or 300‹ F. to produce a fine spray. The product may be subsequently steamed and re-evacuated to cause evaporation of part of the condensed steam, this cycle being repeated from one to five times. Specification 488,638 is referred to.
Patent GB-1020476-A (GB)
Title: Improvements relating to electric fencing apparatus
Inventor: DRAKE RODNEY SHUTTLEWORTH
IPC: A01K3/00
Filed: 1963-06-12
Abstract: 1,020,476. Mounting of switches. WOLSELEY ENGINEERING Ltd. May 1, 1964 [June 12, 1963], No. 23362/63. Heading H2B. A control box for use with electric fencing and containing a battery, a circuit for increasing the voltage and a pair of output terminals has a pair of sockets 9 formed in lugs 6 and arranged to engage a pair of spigots 13 mounted upon a post, each socket 9 being formed with a cutaway portion 12 forming a guide track leading to the mouth of the socket.
Patent GB-1203549-A (GB)
Title: Improvements in or relating to recorders
Inventor: MULLER JOHANNES
IPC: G10D7/02
Filed: 1969-05-08
Abstract: 1,203,549. Recorders. J. MULLER. 8 May, 1969 [8 May, 1968], No. 23498/69. Heading G5J. In a recorder head 1 with a conical bore 4 and an air hole 6 with a concavely curved lip edge 7, the mouthpiece comprises a part 5 with an upper flat inclined surface 11 and a semicylindrical part 8 which together with the part 5 forms a wind way 9 tapering towards the air hole 7. The air hole may be circular, as shown in Fig. 3, or elliptical and the mouthpiece part 8 has a recess 13 surrounding the air hole. The head 1 is joined to the body tube 2 by means of a sleeve 3 and the recorder may be made of wood, metal, ivory or plastics material. At least the head and mouthpiece portion are preferably made of transparent plastics material, e.g. an acrylic resin. The finger holes in the body tube 2 are provided with inserted finger hole rings and the two lowest holes are divided by bridge-like inserts in the finger hole rings.
Patent GB-523090-A (GB)
Title: Improvements in or relating to the production of printed textile fabric
IPC: D06P1/44
Filed: 1938-10-20
Abstract: 523,090. Printing inks. INTERCHEMICAL CORPORATION. Oct. 20, 1938, Nos. 23539/39 and 23540/39. Convention dates, Dec. 31, 1937, and Aug. 2, 1938. Divided out of 522,941 under which a Specification was laid open under Sect. 91 of the Acts, May 8, 1939. [Class 146 (iii)] [Also in Groups XVI and IV] A method of printing textile fabrics consists in applying by an ordinary printing operation, an emulsion, the inner phase of which is a volatile liquid, e.g. water constituting more than 20 per cent. by weight of the emulsion, and the outer phase a lacquer comprising a film forming binder in a solvent with pigment dispersed therein, the emulsion being applied to the fabric in such quantities as to form small portions of binder adhering to the individual yarns without bridging the spaces between the yarns. The lacquer is preferably convertible, e.g. by heat, into a form which is insoluble in washing and dry cleaning agents and has a volume ratio of binder to pigment in excess of 2 to 1. Suitable emulsions are prepared as follows:-(1) urea formaldehyde resin solution consisting of 50 per cent resin, 30 per cent butanol, 20 per cent xylol, alkyd resin, consisting of 25 per cent glycerol phthalate and 75 per cent soya bean oil, and turpentine substitute mixed in a mill with copper phthalocyanine blue pulp and water ; (2) damar gum xylol and kerosine are mixed in a mill with barium lithol toner pulp and water.
Patent GB-1245672-A (GB)
Title: Manufacture of pigmented synthetic polymer fibres and films
Inventor: OXLEY JOHN H
IPC: B29C48/67
Filed: 1969-05-08
Abstract: 1,245,672. Film and fibre forming polymer compositions. VICKERS - ZIMMER A.G. PLANUNG UND BAU VON INDUSTRIEANLAGEN. 8 May. 1969 [22 May, 1968], No. 23570/69. Headings C3P and C3R. Fibres and films of synthetic resin compositions are made by (i) mixing the polymer which has been crushed to a size of 1 mm. or less with an additive at a temperature below the softening point of the polymer to form a particulate concentrate having a higher additive concentration than desired in the final product, the mixing being carried out with shearing action, (ii) further mixing at a higher temperature at which the surfaces of the polymer particles are melted, again with shearing action; (iii) melting; and (iv) mixing with molten polymer to give the correct additive concentration followed by melt-spinning or melt-extruding. Steps (i) to (iii) may be carried out in a screw mixer, step (iv) being carried out in a second such mixer. Polymers specified are polyesters (Examples 2-6), polyamides (nylon-Example 7), polypropylene (Example 8) and their copolymers. The additives may be fillers (e.g. carbon black), delustrants (e.g. Titantia), colouring materials (e.g. phthalocyanines), stabilizers (e.g. an alkyl phosphate) or optical brighteners.
Patent GB-1468960-A (GB)
Title: Firearms
IPC: F41C23/00
Filed: 1974-05-29
Abstract: 1468960 Firearm stock P E F TELLIE 29 May 1974 [1 June 1973] 23871/74 Heading F3C A firearm comprises a barrel 1, Fig. 1, and a stock 2 formed of parts 2a, 2b which are removable from the firearm independently of each other. The part 2a supports a trigger mechanism 4, a trigger 4a and a hand grip 5, and the part 2b protects sighting means and cocking means and comprises a carrying handle and a channel sight. The sighting means comprises a sighthole 8 in a support 9 and a foresight 10 carried by a support 11, the supports being secured to the barrel 1 of the firearm. The cocking means comprises a lever 6 and a rod 7 secured thereto. The part 2a is attached to the barrel 1 by screws 12 which are screwed into a rod 13 carried by the barrel and by a screw 15 which is received by a breech-mechanism support 14 carried by a butt 3 of the firearm. The part 2b, having a bracket 16, is secured to the firearm by a stud 17, carried by the firearm, entering the bracket 16 and by a pin 18 being received by orifices 19, 20 in the part 2b and in the support 9 respectively. Rough aiming is effected by the channel sight C, Fig. 3, which is formed between portions 21c and 21d of the part 2b, after which sight hole 8 and the foresight 10 are used. The firearm may launch grenades and can therefore be positioned as shown in Fig. 4 with the butt 3 engaging the ground. Sighting is effected through a hole 24, Fig. 5, formed in the part 2a, a window 25 in the part 2b and a foresight 23. The parts 2a, 2b and the butt 3 may be made from a laminated material based on fibres and synthetic resin.
Patent GB-1435494-A (GB)
Title: Handtool for sharpening and setting teeth of a saw blade
IPC: B23D63/02
Filed: 1972-05-22
Abstract: 1435494 Sharpening and setting saw teeth A F SIMS 6 Aug 1973 [22 May 1972] 23942/72 Heading B5L A handtool for sharpening and setting teeth of a saw blade comprises a saddle 1 for supporting the handtool on an edge portion of the saw blade, saw tooth sharpening means linked to the saddle and capable of performing reciprocating movement with respect to the saddle, and sawtooth setting means attached to the saddle for setting a sawtooth at a preselected angle with respect to the saw blade.  As described the saddle has a longitudinal slot 2 for receiving the saw blade, and recesses 7 and 18.  The sharpening means comprises a file carried by straps 19, 20 fixed to a rod 21 which is slidable in a recess in a bracket 16 secured to the saddle. The file is reciprocated by a handle 25 and is angularly adjusted by a screw 22. The setting means comprises an anvil 3 and a ram 10 which can be moved to press a sawtooth against the anvil 3 by means of a handle 5. The ram is urged away from the anvil by a spring. The anvil has a plurality of surfaces at different angles, any one of which can be brought opposite the ram 10 by longitudinal adjustment of the anvil, so as to vary the setting angle.
Patent GB-1493104-A (GB)
Title: Projectile fuses
IPC: F41G7/30
Filed: 1973-05-19
Abstract: 1493104 Projectile fuzes FERRANTI Ltd 16 May 1974 [19 May 1973] 23996/73 Heading F3A A projectile fuze in which a time delay interval is introduced after firing a projectile fitted with the fuze in order to compensate for variances in muzzle velocity and the range of the target, comprises a receiver 13 for receiving information signals transmitted by a controlling source and rendered operative upon firing of the projectile; timing means comprising an oscillator 16, a counter 17, control means 15 responsive to a 1st received information signal to start the counting of oscillations and responsive to a 2nd information signal received after a predetermined unit time period to stop the counting, multiplication means 18 responsive to a 3rd received information signal, representative of the number of unit time periods to the end of the delay interval, to provide a counting limit signal representing the product of the number of unit time periods and the number of oscillations counted in unit time period and coding means 21 responsive to the counting limit signal to set a counting limit of the counter; and detonation means 12 operable when the counter reaches its counting limit. The receiver 13 is a radio or optical receiver and is changed from a low sensitivity state to a high sensitivity state upon receiving a signal following firing of the projectile. The control means 15 is arranged to store a received coded signal and rejects any received signal not identified by the predetermined code. The trajectory of the projectile may be modified in flight by either firing a rocket motor with an igniter 22, in response to a predetermined count of the counter 17, or by erecting braking flaps. The 3rd received information signal may be transmitted from a control source or may result from the projectile passing through a radio curtain located a predetermined distance from the target. The range of the target may be determined by a laser.
Patent GB-1351249-A (GB)
Title: Webs of material
IPC: B29C53/32
Filed: 1971-04-19
Abstract: 1351249 Coated film KALLE AG 19 April 1971 [17 March 1970] 24059/71 Heading B2E A film of a plane-surfaced web of a thermoplastic synthetic material wound up or intended to be wound up into a roll has applied to each longitudinal side of one face at or adjacent the edge of the film, a thin layer of such a medium as bonds adjacent film layers of the roll to such an extent during the winding-up of the film that the air confined between the individual web layers does not escape or only very slowly escapes during storage of the wound roll but not to such an extent that the film layers cannot be readily separated without damage during winding-off the roll. The thermoplastic film may be laminated or coated and may be polypropylene, polyethylene terephthalate. The medium may be wax, applied by screen printing or by hot-melt application 'through nozzles.