baber/WOPTO huggingface dataset:
Patent GB-661796-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B30B15/06
Filed: 1949-05-06
Abstract: 661,796. Hydraulic presses. ABBEY, A. (Svenska Flygmotor Aktiebolaget). May 6, 1949. No. 12174/49. Class 69 (ii). In a hydraulic press having a stationary platen 1, and a movable platen 2, which is seated in a reciprocable plunger 5 for universal adjustment relative thereto and is maintained parallel to the platen 1 by spring- means, pre-strained helical springs 11 are mounted between the platen 2 and the plunger 5 at a relatively great distance from the centre of the platen, e.g. at the corners of a square platen, so as to be readily responsive to small displacements to oblique positions of the platen. Each spring is mounted on a bolt 12, secured to the members 2, 5 by a head 13 engaging a ring 14 and nuts respectively. The plunger 5 is actuated by a pump 7a driven by an electric motor 7b. The bolts are so positioned with regard to switches 17 which arc disposed in the circuit of the motor 7b that should the platen tilt the motor cuts out. The switches 17 may be actuated by the movable platen instead of by the bolts. The upper platen could constitute the moving platen or both platens be movable.
Patent GB-1420299-A (GB)
Title: Preparation for imparting the aroma of smoked food to meat  products
IPC: A23L27/27
Filed: 1974-03-19
Abstract: 1420299 Smoked food flavouring composition VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT MYASNOI PROMYSHLENNOSTI 19 March 1974 12183/74 Heading A2B  A preparation for imparting the flavour and smell of smoked food to meat products comprises in % by wt:-carbonyl compounds: furfural 0.05 - 0.8 valeric aldehyde 0.0002-0.05 dihydroxyacetone 0.0003-0.004 diacetyl 0.0001-0.001 organic acids: acetic acid 0.2-1.5 formic acid 0.01-0.1 propionic acid 0.03-0.25 butyric acid 0.001-0.03 valeric acid 0.01-0.1 caproic acid 0.003-0.05 heptaoic acid 0.001-0.01 phenols guaiacol 0.0002-0.01 o-cresol 0.0002-0.01 bases ethylamine 0.00005-0.0008 p-hexylamine 0.00005-0.0008 with water or a 1% aqueous solution of ethanol to make up to 100%.
Patent GB-1021102-A (GB)
Title: Microwave phase shifter
IPC: H01P1/19
Filed: 1964-03-23
Abstract: 1,021,102. Phase shifters. BENDIX CORPORATION. March 23, 1964 [April 8, 1963], No. 12214/64. Heading H1W.  A variable microwave phaseshifter for a coaxial transmission line comprises an outer conductor 12 enclosing an axial ferrite or yttrium-iron garnet rod 10 around which is wound a helical conductor 19. The polepieces 32, 34 of a variable electromagnet provide a transverse magnetic field. It is stated that a change in the magnetic field produces a change of phase-shift which is constant over a large frequency band. The phaseshift is reciprocal. The pitch of the helix may be increased at its ends 24 where it is joined to cylindrical conductors 14. Gadolinium substituted yttrium iron garnet may be used for the element 10.
Patent GB-636555-A (GB)
Title: Improvements relating to the construction of buildings, especially temporary or portable covered enclosures
IPC: E04B1/343
Filed: 1947-05-07
Abstract: 636,555. Temporary buildings ; roofs. HILLFIELDS, Ltd., and CHURCHILL, H. W. S. May 7, 1947, No. 12334. [Classes 20 (i) and 20 (iv)] A temporary building, e,g. a marquee or ridge type tent, comprises a roof covering 22, Fig. 1, supported by a skeleton framework composed of aligned masts 1 over each of which a pair of ropes 10 is draped with their ends anchored at 3, 3A, the ropes being inter-connected by purlins 17. The masts 1 are flanked by two rows of shorter posts 2, 2A over which the ropes are also draped and diagonal ropes 44 provide the building with cross bracing. The ropes 10 are secured to the tops of the masts 1 and posts 2, 2A by means of saddle clips 14, Fig. 5, bolted to capping plates 13 welded to the tops of the masts and posts, and the purlins 17 are clamped to the ropes 10 by means of bolts 18 and cradle plates 20. Strips of felt are hung over the purlins 17 and sheets 22 of corrugated metal &c. are secured by hook bolts 24 which also secure the ridge plating 23. Strutted gable end framings are provided and the sides of the building may be constituted by wall structures 45, Fig. 1, attached to the posts 2, 2A. In order to damp oscillation of the roof surface, the ropes 10 are attached as shown in Fig. 1, to oppositely directed ropes 42 which are pulled downwards by a vertical rope 43 fixed at a point near the base of the mast.
Patent GB-704238-A (GB)
Title: Improvements in or relating to the manufacture of meso-halogeno-aza-acridines
Inventor: GOLDBERG ALAN AUGUST
IPC: C07D471/04
Filed: 1950-05-17
Abstract: The invention comprises meso-halogeno-1-aza-acridines of the general formula <FORM:0704238/IV(b)/1> wherein R1 represents hydrogen or (preferably in the 6 or 7 position) a halogen atom or an alkoxy or nitro group and R2 represents an alkoxy or aryloxy group, and the preparation thereof by heating with a phosphoryl halide an o-(3-pyridyl)-aminobenzoic acid of the general formula <FORM:0704238/IV(b)/2> or the corresponding acridone obtained by cyclodehydration thereof (e.g. by heating with sulphuric and/or phosphoric acid, boron trioxide, or a mixture of sulphuric acid and acetic anhydride or of acetic anhydride and acetyl chloride, or by treating the corresponding acid chlorides with aluminium chloride or stannic chloride).  The products are useful as pharmacological agents or as intermediates for antibacterial, antiplasmodial or antiprotozoal agents.  Examples describe the preparation of 2-n-butoxy-, -methoxy-and-phenoxy-6:9-dichloro-, 2-methoxy-7-nitro-9-chloro, 2-ethoxy-6-nitro-9-chloro- and 2:7-dimethoxy-9-chloro-1-aza-acridines.  Reference is also made to compounds in which Hal represents bromine, R1 or R2 represents propoxy, pentoxy or hexoxy, or R2 represents tolyloxy or xylyloxy. Specificatio 696,127 is referred to.
Patent GB-130452-A (GB)
Title: Improvements in Sparking Plugs for Internal Combustion Engines.
IPC: H01T13/46
Filed: 1918-07-30
Abstract: 130,452. White, J. K., and Baynes & Partners. July 30, 1918. Sparking-plugs.-The inner end of the plug casing is provided with a plurality of baffles B<1>, B<2>, each baffle having a central aperture and the outer baffle lateral openings g which may be connected by slits with that in the centre. The inner end of the central conductor is enlarged so as to divert the gases passing through the central opening into the chamber between the baffles. The inner baffle B<2> may be directed downwardly towards the mouth of the plug.
Patent GB-1164089-A (GB)
Title: Apparatus for Generating Non-Periodic Electric Sparks
IPC: H02K35/06
Filed: 1968-03-14
Abstract: 1,164,089. Reciprocating generators. BRAUN A.G. 14 March, 1968 [16 March, 1967], No. 12373/68. Heading H2A. A spark generator comprises a pair of soft iron members 1, 2 separated at one end by an air gap 33 and linked adjacent their opposite ends 11, 21 by a permanent magnet 4, the intermediate parts of the members being surrounded by high- and low-voltage coils 5, 6 respectively. Movement of an armature 100 into engagement with the ends 11, 21 shorts the permanent magnet and produces a rapid flux change from the circuit via gap 33 to that via the armature. At the same time a nose 9 on the armature opens a short-circuiting switch 8 across the coil 6 thereby interrupting the circulating current induced by the flux change and producing a high-voltage spark at the gap 51 across coil 5. The magnet 4 may be located below the coils 5, 6 (Fig. 9, not shown) and instead of the gap 33 a second armature (300) (Fig. 6, not shown) may bridge these ends of the members 1, 2 and be moved out of contact therewith by the armature 100 as it contacts the ends 11, 21.
Patent GB-125140-A (GB)
IPC: C07C201/16
Abstract: 125,140. Chance & Hunt, Holley, A. E., and Mott, O. E. June 10, 1916. Nitro compounds.-Liquid nitro compounds, for example molten trinitrotoluene, are washed by a counter-current of water or other washing-liquid in apparatus similar to that described in Specification 124,461, comprising a series of vessels on a level provided with agitating-means and separators on the same level, the flow of liquid being caused by the head produced in the separators. The separators may be spaces communicat ng with the pots about half-way up, and with connexions at the top and bottom for the transfer of the two liquids. The nitro body is fed in at one end of the apparatus and the washing-liquid at the other.
Patent GB-1458544-A (GB)
Title: Semiconductor laser stacks
IPC: H01S5/40
Filed: 1974-03-21
Abstract: 1458544 Lasers STANDARD TELEPHONES & CABLES Ltd 21 March 1974 12540/74 Heading H1C A laser assembly comprises a set of anodized aluminium plates 18 interleaved between a set of indium coated copper plates 31, the edge of each aluminium plate being provided with a slot in which is located a laser die 11 whose light output face is attached to one end of a fibre optic ribbon 10, and the thickness of each laser die being greater than that of the aluminium plate in whose slot it is located by an amount which when compression bonding is effected is accommodated in the indium coating of the adjoining coated copper plates. A plurality of the assemblies shown in exploded view in Fig. 3 may be used in a single lasing arrangement, Fig. 5 (not shown).
Patent GB-714374-A (GB)
Title: Improvements in and relating to piston and cylinder assemblies
IPC: F01B11/02
Filed: 1952-05-19
Abstract: 714,374. Pistons; cylinders; stuffing-box substitutes. TOMKINS-JOHNSON CO. May 19, 1952 [July 21, 1951], No. 12617/52. Classes 122(1) and 122(5) [Also in Group XXVIII] Cushioning of a compressed air actuated piston 14, Fig. I, near the ends of its stroke in a cylinder 10 is effected by an axially projecting plug 18 of the piston telescoping into an axial exhaust port 28 in the cylinder head 12 provided with an annular sealing ring 32. The sealing ring 32 comprises a synethetic rubber ring 35, Fig. II, held in a metal casing 34 by a ring 40 and a flange 42, and a comb-spring 38 reinforces a resilient lip 36. The cylinder heads 12 which are bolted to the cylinder 10 have inlet and exhaust ports 24, 26 leading to the axial ports 28.
Patent GB-1422168-A (GB)
Title: Fly system for a pair of trousers
IPC: A41D1/06
Filed: 1973-03-15
Abstract: 1422168 Trouser fly closure system SCOVILL MFG CO 15 March 1973 [6 April 1972] 12641/73 Heading A3V [Also in Division E2] A trouser fly closure system comprises two sliding clasp fastener stringers with intermeshing fastener elements 16, 36, each stringer having an integrally woven tape which is bifurcated at 20, 32 to provide a first web 22, 34 carrying the fastener elements, a second web 24, 40 stitched to the left or right front trouser panel 28, 46 respectively, and a third web 26, 38 which covers the front or rear of the fastener elements respectively. The margin of the right trouser panel 46 may be folded under. The webs of the tapes may be of different thicknesses, e.g. the warp threads of web 38 may be thicker than those of the other webs to provide greater stiffness.
Patent GB-1394645-A (GB)
Title: Bellows seals for valve rods
IPC: F16J15/52
Filed: 1973-03-16
Abstract: 1394645 Bellows seals; valves M I GROMYKO G V POTOROCHIN Y A TUNIK and B S MALKOV 16 March 1973 12672/73 Headings F2B and F2V A sealing arrangement for an actuating rod 7 of a valve arrangement comprises two bellows 8, 9 confining an auxiliary fluid, and means defining a predetermined pressure differential between the fluid and pressurized medium in an outlet passage 3 of the valve, said means comprising membranes 14, 15 of respective predetermined areas spaced by a component 16 and subjected respectively to the pressure of the fluid and that of the medium. The fluid is located between the outer surface of one bellows 8 and the interior of a cap 12, and within the other bellows 9, which is externally subjected to the pressure of the medium in the outlet 3. On raising the rod 7, the bellows 9 is contracted between a valve member 5, raised from a seat 4, and a fixed flange 10, and the bellows 8 between a collar 13 of the shaft 7 and the cap 12. The membranes 14, 15 are preferably formed with surface corrugations (19), Fig. 2 (not shown), and channels 17 in the valve member allow the medium in the outlet passage 3 to pressurize the membrane 15 at all times.
Patent GB-784048-A (GB)
Title: A musical whistle
IPC: G10D9/04
Filed: 1956-04-25
Abstract: 784,048. Wind musical instruments. BACON, J. H. April 25, 1956 [Sept. 28, 1955], No. 12758/56. Class 88 (2). The note produced by a whistle is variable by means of a piston 8 slidable in a transparent resonance chamber 7. Note indications are marked on the chamber 7, and a card 15 showing successive piston positions for a particular tune may be placed behind the chamber 7.
Patent GB-1287524-A (GB)
Title: Improvements in the electrolytic refining of metals
Inventor: DAVIS WALTER DENNIS
IPC: C25C3/00
Filed: 1970-03-17
Abstract: 1287524 Electrolytic refining of metals in fused salt baths ASSOCIATED LEAD MFRS Ltd and W D DAVIS 11 Jan 1971 [17 March 1970] 12767/70 Addition to 1209975 Heading C7B Metals are refined electrolytically using a fused salt method similar to that claimed in parent Specification in which the cell is run at minimum internal resistance with the cathode metal in substantial contact with the undersurface of the diaphragm. The diaphragm may comprise a flexible felt of ceramic fibres.
Patent GB-1491938-A (GB)
Title: Supporting articles during manufacture
IPC: H01L21/304
Filed: 1975-03-27
Abstract: 1491938 Vacuum work-holders PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 March 1975 [1 April 1974] 12923/75 Heading B3D A method of working a surface of an article 6, such as a lens or semi-conductor wafer, the article being connected with one of its surfaces to a corresponding connection surface of a support being subjected to a treatment, such as polishing or lapping, and removed from the support, comprises using a support having a connection surface in which is at least one recess 4, positioning the article on the connection surface so as to entirely cover the recess, placing the support and article in a subatmospheric space so that gas escapes from the recess, and removing the sub-atmospheric pressure from the space so that the article closes the recess and is held on the connection surface as a result of the sub-atmospheric pressure in the recess. The support for use in the method consists of a rigid supporting element 2 and a layer 3 of synthetic rubber provided with a plurality of recesses 4 and portions 5 providing the connection surface on which the articles 6 are placed, each covering a number of recesses. A weight 7 and an equalizing layer 8 may be placed on the articles and the whole is placed in a vacuum vessel in which the pressure is reduced to, for example, 0À5 atmosphere. Because of the low pressure gas escapes from the recesses and when the vessel is returned to atmospheric pressure, the low pressure in the recesses holds the articles on the surface while they are polished or lapped. To remove the articles from the surface, the support is placed with the articles facing downwardly on spacers 9 in a container 10 filled with liquid, the whole being placed in a vacuum device evacuated to a pressure lower than that used during securing of the articles to the support so that the wafers drip to the bottom of the container, the liquid preventing damage to the articles.
Patent GB-1005042-A (GB)
Title: Improved furnace joint
Inventor: WHITWAM KENNETH BEDFORD
IPC: F27D11/08
Filed: 1963-04-02
Abstract: 1,005,042. Pipe joints. W. C. HOLMES & CO. Ltd., and UNITED STEEL CO'S Ltd. (Steel Peech and Tozer). March 25, 1964 [April 2, 1963], No. 13016/63. Heading F2G. A furnace joint, particularly for a waste gas take-off from a tilting arc furnace, comprises a plurality of articulated slides 28 forming a sealing member on a fixed framework 24, and means on some of the slides to advance and retract the said member relative to the framework, said articulation permitting differing advancement of one slide relative to another. The upper of the slides, each comprising inter fastened plates in a support member 50, is attached to a carrier rod 30, the ends of which pass through the eyes 32 of the two part carrier rods 34 of the side slides. The lower slide is similarly mounted. As illustrated in Fig. 2 (not shown), compression and tension springs on the rods 30 and 34 respectively urge the four slides inwardly against castellated guide surfaces 52 sides of the fixed framework. Pneumatic rams 40 operate pistons to advance and retract the slides to and from a flange of the waste gas takeoff, sensors 42 being provided on the leading edges of the slides to reduce ram thrust on contact with the flange. Pneumatic lubrication between the slides and fixed frame is achieved by passing compressed air therebetween through a plurality of connections 44.
Patent GB-746564-A (GB)
Title: Improvements relating to circulatory fluid-pressure power steering mechanisms for road vehicles
IPC: F15B13/04
Filed: 1954-05-05
Abstract: 746,564. Fluid-pressure servomotor-control systems; valves. GENERAL MOTORS CORPORATION. May 5, 1954 [June 29, 1953], No. 13041/54. Addition to 724,411. Class 135. An improvement in the control valve described in the parent Specification for use in controlling the supply and exhaust of pressure liquid to and from the servomotor of a motor vehicle steering mechanism, comprises the making of the enlarged diameter end lands 110, 112, Fig. 5, of the valve spool 62 of unequal diameter so that the steering effort in either direction against identical resistances is the same, the end load associated with the pistonrod end 120, Fig. 2, of the servomotor cylinder 30 being the smaller. To produce the same total load acting on the piston 32 in either direction of movement, the pressure acting on its smaller piston-rod side requires to be larger than that acting on its other side. Hence the area of the face 117 of the land 110 on which this larger pressure acts to oppose movement of the valve spool and to return the valve spool to its central neutral position when steering effort is removed need not be so large as the area of the face 115 of the land 112. The rate of return of the valve spool to its neutral position from either of its operative positions is substantially the same.
Patent GB-968295-A (GB)
Title: Improvements in metallurgical processes and apparatus
IPC: F27B3/00
Filed: 1962-04-05
Abstract: The method of refining metal in a metallurgical furnace disclosed in the parent Specification includes the additional steps of introducing hot metal into the bath before the charge contained therein is uniformly heated and passing oxygen through the tubular conduit during at least part of the refining time. An open hearth furnace with conventional end burners is used and one or more of the tubular conduits extend through the roof, being supplied with oxygen and fuel initially and with oxygen only before and after the hot metal addition during part or the whole of the refining time.
Patent GB-512171-A (GB)
Title: Improvements in or relating to means for supplying extra air to the induction manifolds of internal-combustion engines
IPC: F02D9/00
Filed: 1939-05-01
Abstract: 512,171. Extra-air valves. ROTHWELL, E. May 1, 1939, No. 13118/38. [Class 7 (ii)] A device for supplying extra air to the induction manifold of an engine comprises a valve c which is attracted by a solenoid c<1> so as to open a port b admitting air to the manifold A, the solenoid being connected in series with the dynamo-battery charging circuit so that the valve c is opened when the engine speed exceeds a certain amount. In order to prevent extra air from being admitted when accelerating, a rotary valve D is interconnected with the throttle valve so as to be closed when the throttle is fully open. The valve D is also closed when the throttle is closed, extra air being then admitted around a bye-pass d<3> if the vehicle is coasting downhill. When the throttle is in the normal half-open position, the valve D is fully open as shown. Suction may be provided for a windscreen wiper through a connection E.
Patent GB-1306574-A (GB)
Title: Process for the preparation of 4-chloro-n-furfyrl-5-sulphamoyl anthranilic acid
IPC: C07D307/52
Filed: 1971-05-05
Abstract: 1306574 Process for 4-chloro-N-furfuryl-5- sulphamoyl anthranilic acid "ASSIA" CHEMICAL LABORATORIES Ltd 5 May 1971 [6 May 1970] 13123/71 Heading C2C The title, therapeutic compound is made by reacting an alkali metal salt of 3-sulphamoyl-4, 6- dichlorobenzoic acid (optionally formed in situ), in the absence of water, with about 3 equivalents of furfurylamine at 120-140 C. and thereafter effecting acidification.
Patent GB-1402518-A (GB)
Title: Stabilization of 2- 2-amino-ethoxy ethanol
IPC: B01D53/48
Filed: 1974-03-25
Abstract: 1402518 Purifying natural gas JEFFERSON CHEMICAL CO Inc 25 March 1974 [11 April 1973] 13142/74 Heading C5E [Also in Division C2] 2-(2-Aminoethoxy)ethanol stabilized against degradation in the presence of acidic gases by the addition of 1-50% by weight, based on the 2-(2-aminoethoxy)ethanol, of a water soluble trialkanolamine, is used to remove acid gas impurities, e.g. carbon dioxide, hydrogen sulphide and carbonyl sulphide, from natural gas. The trialkanolamine is for example triethanolamine, diethanolisopropanolamine, diethanolisopropanolamine and mixtures thereof.
Patent GB-886824-A (GB)
Title: Improvements in electronic power supply regulator
IPC: G05F1/573
Filed: 1958-04-25
Abstract: 886,824. Automatic voltage-control systems. GENERAL ELECTRIC CO. April 25, 1958 [June 5, 1957], No. 13204/58. Class 38 (4). In an automatic D.C. voltage stabilizer of either the series or, it is stated, the shunt transistor type, the collector leakage current at cut-off is reduced to a minimum by biasing the base positive with respect to the emitter. In one embodiment of the series stabilizer, the transistor Q1 is in series with the load 12 across the main D.C. input terminals 16, 17, and is controlled via an emitter follower transistor Q2 from a two transistor comparator Q3, Q4 in which a portion of the output voltage tapped off a potential divider 42 is compared with the voltage across a Zener diode D1. The emitter of transistor Q2 is connected through the load resistor 28 to an auxiliary input terminal 18 which is positive with respect to the main input terminal 17. This auxiliary supply is obtained from the 3-phase A.C. supply mains by a half-wave germanium junction rectifier D5, D8, D11 in parallel with the full-wave silicon junction rectifier D3, D4, &c. which provides the main supply. The lower forward bias necessary for the germanium junction rectifier ensures that this auxiliary supply is slightly higher in voltage than the main supply. Current limiting or compounding is effected in three ways. Firstly, as the load current increases the collector current of transistor Q3 increases and consequently that of transistor Q4 decreases hence the voltage drop across resistor 40 decreases signal equivalent to a rise in output voltage is applied to the base of the transistor Q3. Ultimately the transistor Q4 cuts-off and the transistor Q3 acts as an emitter follower to cumulatively reduce the output voltage, thus providing the second form of limiter. Thirdly, the voltage that can be applied to the base of the series transistor Q1 is limited by shunting the emitter-follower Q2 with a silicon junction diode D2 having a forward voltage drop of about 1 volt. In a second embodiment, Fig. 5 (not shown), the auxiliary high voltage supply is obtained from an undisclosed source and is assumed to be stable so that a portion of it can also be used as the reference source for the output voltage comparator. Specification 886,825 is referred to. Reference has been directed by the Comptroller to Specification 778,015.