baber/WOPTO huggingface dataset:
Patent GB-601816-A (GB)
Title: Process for making an alkali metal salt of an amino carboxylic acid
IPC: C01D13/00
Filed: 1945-09-19
Abstract: Amino carboxylic acid salts are prepared by heating a primary, secondary or tertiary amino alcohol containing one or more primary alcohol groups with an aqueous solution of an alkali metal hydroxide completely miscible therewith, at an elevated temperature at which hydrogen is liberated from the reaction mixture, but below that at which substantial decomposition of the product takes place, the alkali metal hydroxide solution having a weight concentration of not less than about 85 per cent metal hydroxide in the case of primary and secondary amino alcohols and not less than about 35 per cent in the case of tertiary amino alcohols.  The reaction temperature is normally not exceeding 285 DEG  C. and reaction may be effected under pressure.  The compounds treated include mono- and poly-amino mono- and polyhydric alcohols which may contain alkyl, aryl or aralkyl groups.  In examples: (1) monoethanolamine is heated with excess 85 per cent caustic potash yielding a mixture of potassium glycine and potassium oxalate; (2) tetraethanol ethylene diamine is heated with excess of 85 per cent caustic potash or 95 per cent or 35 per cent caustic soda to yield the corresponding salt of tetracarboxy-methyl ethylene diamine; (3) triethanolamine and about 85 per cent caustic potash are heated yielding tripotassium carboxy-methylamine.  The free acids are obtained by acidifying the salts.  Other compounds which may be prepared similarly are tetracarboxymethyl propylene diamine from tetraethanol propylene diamine, pentacarboxymethyl diethylene triamine from pentaethanol diethylene triamine, hexacarboxymethyl triethylene tetramine from hexaethanol triethylene tetramine, dicarboxymethylamine from diethanolamine and isopropyl- and butyl-dicarboxymethylamines from the corresponding isopropyl- and butyl-diethanolamines. Specification 601,817 is referred to.
Patent GB-996453-A (GB)
Title: An improved electric plug and a method of constructing same
Inventor: GREASLEY ERIC ARTHUR
IPC: H02B1/04
Filed: 1962-06-25
Abstract: 996,453. Two-part couplings. PRESSAC Ltd. June 25, 1962, No. 24300/62. Heading H2E. An electric plug with contact blades has two plates or mouldings which are clamped together and have non- aligned slots which retain the contact blades. As shown, Fig. 4, the contacts consist of a blade 1 with feet-like portions 11 and a tag 2 which has ear portions 13 and is connected to the blade 1 by a twisted neck so that the surface of the tag is perpendicular to that of the blade. The blade 1 is mounted in a slot 10 in a panel 7 and a second panel 6 with a slot 8 and a central hole 9 is passed over the tag 2, and the plates are clamped together, e.g. by riveting. The feet 11 rest against the top of the panel 6 while the ears 13 rest against the bottom of the panel 7 thus preventing axial movement of the blade. In a modification, Fig. 7, the blade 1 and tag 2 are formed with steps 14, 15, as shown, which locate in slots in the plates 6, 7, which are offset, thus preventing withdrawal of the blade.
Patent GB-361400-A (GB)
Title: Improvements in route and distance indicators for use in streets, roads and other ways
IPC: G08G1/09
Filed: 1930-08-14
Abstract: 361,400. Indicators. NICOHOSOFF, E., 5, Rue Fouad Ier, Alexandria, Egypt. Aug. 14, 1930, No. 24333. [Class 3 (i).] A sign adapted to be erected along a street, road, &c. to indicate the distance to, and position of, various places on that street &c. comprises a face-plate A having a longitudinal slot B behind which is traversed an endless band E. The band is moved manually by a handle P, and may comprise a tape measure whereby distances apart of places on the street &c. indicated along the slot may be measured. Alternatively a band or chain or a screw-threaded shaft S may carry a pointer G to align place marks with a fixed scale. In a modification a non-endless band &c. is wound at one end over a spring-roller &c. which automatically brings the pointer back to zero, and is drawn on to the other roller by a hand-lever, spring-button, &c. The band may be perforated along its length to engage teeth on the roller peripheries, and a spring-pressed jockey roller may keep the band taut. The plate and band mav be transparent and illuminated from behind, and the pointer may be phosphorescent. Reference has been directed by the Comptroller to Specifications 9661/94 and 17081/05, [both in Class 3, Advertising &c.].
Patent GB-695529-A (GB)
Title: Process for the production of crystalline vanillyl amides
IPC: C08F20/54
Filed: 1951-10-18
Abstract: Crystalline vanillyl amides are prepared by reacting excess guaiacol with a methylol amide of an aliphatic saturated or unsaturated carboxylic acid having from 6-12 carbon atoms, in the presence of alcoholic hydrogen chloride.  The reaction preferably takes place in alcoholic solution at a temperature above 30 DEG  C. The vanillyl amide products may be converted into solid alkali salts, for example, by adding a methyl alcohol solution of an alkali hydroxide to a methyl alcohol solution of the crude vanillyl amide and evaporating to dryness.  The crystalline sodium salts can be dissolved in water and treated with acids to give pure crystalline vanillyl amides.  The general formula of the vanillyl amides is <FORM:0695529/IV (b)/1> in which R is a saturated or unsaturated aliphatic radical with 5-11 carbon atoms.  In the examples (a) pelargonic acid methylol amide is reacted with guaiacol in the presence of alcoholic hydrochloric acid to give pelargonic acid vanillyl amide, and (b) undecylenic acid methylol amide is reacted with guaiacol in the presence of methanolic hydrochloric acid to give undecylenic acid vanillyl amide.  U.S.A. Specification 1,503,631 is referred to.
Patent GB-584088-A (GB)
Title: Piezo-electric crystal holder
IPC: H03H9/09
Filed: 1944-12-06
Abstract: 5 8 4 , 0 8 8 . Piezo - electric crystal mountings. STANDARD TELEPHONES & CABLES, Ltd. Dec. 6, 1944, No. 24403. Convention date, Dec. 6, 1943. [Class 40 (v)] An elongated rectangular quartz crystal C having electrodes 10 extending on to bevelled edge portions 12, is mounted in a central recess in an insulating container 1, by having one end engaged in a corner of the recess and the other end between a contact spring 16 and two spaced extensions 15 of a contact bracket 14 connected to a plug terminal 5<1>. Spring 16 is connected to a second plug 5. The casing is closed by a front plate (not shown) held by screws with the interposition of a sealing washer.
Patent GB-510644-A (GB)
Title: A process for manufacturing cyclic hydrocarbons from aliphatic hydrocarbons
IPC: C07C5/41
Filed: 1938-08-19
Abstract: 510,644. Catalytic agents. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Aug. 19, 1938, No. 24494. Convention date, Aug, 27, 1937. [Class 1 (i)] [Also in Group IV] Catalysts for use in the thermal conversion of aliphatic to cyclic hydrocarbons are prepared by thermal decomposition of ammonium chromates to which a small proportion of a potassium compound, e.g., potassium dichromate, has been added. The decomposition may be effected in air, nitrogen, a vacuum or in a liquid medium such as paraffin oil. The catalyst may be mounted on carrier bodies. The Specification as open to inspection under Sect. 91 comprises also the use of ammonium chromate decomposition products alone. This subject-matter does not appear in the Specification as accepted.
Patent GB-1001687-A (GB)
Title: Improvements in or relating to envelopes
Inventor: WATTS ALFRED ROBERT
IPC: B65D27/12
Filed: 1963-06-20
Abstract: 1,001,687. Envelopes. HAROLD WESLEY Ltd. June 16, 1964 [June 20, 1963], No. 24664/63. Heading B6A. An envelope for transmission at a reduced rate is provided at opposite ends with two flaps 11 and 12, flap 11 being closed during manufacture and flap 12 on filling. The flap 11 is provided with a line of weakness 14 and an adhesive 13 for securing the flap to the envelope. For inspection the flap 11 may be ruptured along the line of weakness 14 and folded subsequently about a further flap 15 secured to the inside of the envelope and the thus folded flaps introduced into a pocket 14 (Fig. 4, not shown) formed by said flap 15 and a ball of the envelope. Alternatively, the flap 12 may be sealed during manufacture.
Patent GB-507647-A (GB)
Title: A process for removing sulphur, arsenic and other injurious ingredients from iron and iron alloys
IPC: C21C7/064
Filed: 1937-09-10
Abstract: 507,647. Refining iron and iron alloys. KRUPP GRUSONWERK AKT.-GES., F. Sept. 10, 1937, No. 24717. Void. Convention date, Oct. 20, 1936. [Classes 72 and 82 (i)] In a process for removing sulphur, arsenic and other injurious ingredients from iron and iron alloys, the lumps of metal &c. of small size are mixed with a finely granulated purifying agent and the whole melted in a rotary reverberatory Siemens-Marten or electric furnace. To prevent oxidation of the iron and, if desired, its carbonization, solid fuels such as coke or charcoal may be added to the furnace charge. Purifying agents such as calcium, manganese sodium carbonate and calcium carbide may be used. The sulphur-saturated slag may be revivifed for further use by a low-temperature oxidizing process. If a limestone slag rich in manganese is used, the manganese is partly or wholly converted into ferro-manganese which may be used again, together with limestone as purifying agent.
Patent GB-958967-A (GB)
Title: Improvements in time-controlled electric switches
IPC: G04F3/06
Filed: 1960-07-15
Abstract: 958,967. Time switches. GENERAL ELECTRIC CO. July 15, 1960 [July 21, 1959], No. 24726/60. Heading H2B. A cooker timer having separate start and stop spindles 20, 22 each set on a 12-hour dial has a mechanism to prevent any false actuation of the stop mechanism before the start time which could occur through not using a 24-hour dial. The timer also has a mechanism such that pressing in the stop spindle when the start mechanism is not set switches the timer permanently on and that subsequent setting of the start spindle returns control to the clock. A synchronous clock mechanism operates gears 68, 70 each carrying a projection 64, 66. These projections align with the holes 60, 62 in the gears 21, 23 at times which are predetermined by rotating the gears by spindles 20, 22, a clock hand on each spindle indicating start and stop times respectively on individual dials. As the spindles can move axially and a spring 108 urges lever 100 on to the end of spindle 22, when the start time arrives the projection 64 enters hole 60 and the resultant movement of lever 100 is communicated to a switch lever 116 to close contacts (not shown). When the stop time arrives, projection 66 similarly enters hole 62 and the lever 100, deprived of the pivot formed by the end of spindle 20 restores the switch contacts (via lever 116). Strip lever 134 prevents axial movement of the stop spindle to ensure that even when the pin 66 and hole 62 are aligned (which they can be 12 hours ahead of the coned stopping time) no actuation of the switch can occur. The mechanism for switching the clock contacts on for manual control is as follows: A spring-loaded plate 162 engages in a groove on the end of the stop spindle and holds the spindle in. The end of the spindle rooks the lever 100 and thus operates the contacts. Subsequent inward movement of the start spindle releases the latch to allow the stop member to restore and the clock again to take charge. The start and stop times are set by pushing in the spindles 20, 22 and rotating. A spring detent 86 engages gears 21, 23 to prevent them rotating idly and loosing the setting.
Patent GB-1414062-A (GB)
Title: Fluid control valve
IPC: F16K3/00
Filed: 1973-05-24
Abstract: 1414062 Valves A D TOOTH and L J FORDHAM 24 May 1973 [24 May 1972] 24808/73 Heading F2V A fluid control valve has a valve member 6 screw threaded into a bore 2 in a valve body 1 to control flow between an inlet port 16, work ports 15, 17 and an exhaust port 14. The valve member is rotated for axial movement by a shaft 7 and is provided with spaced lands and an axial bore 13 communicating with radial bores 11, 12. If the valve member is moved to a limit position an 0-ring 19 or 21 is compressed against the end wall of the bore 2 to exert side pressure on the threads of the valve member and body to lock the valve member and eliminate leakage along the threads.
Patent GB-699622-A (GB)
Title: Improvements in or relating to electrode systems
IPC: H01L29/00
Filed: 1952-10-03
Abstract: 699,622. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 3, 1952 [Oct. 6, 1951], No. 24824/52. Class 40 (iv). An electrode system, suitable for a transistor, comprises two or more filamentary electrodes 5, 6, mounted so that they are in contact with the surface of a semiconductor 7, and having an insulated bridge 12 between their two ends. The bridge serves to retain the electrodes in position and may consist of glass or polystyrene. The electrode arrangement may be produced by bending a single length of wire 180 degrees, applying the insulating bridge near the bend, and then removing the bend portion by an etching process. The holder 1 of metal, glass or plastic has end plugs 2 and 9 of insulating material which support metal rods connected to the electrodes. A modification is described in which bends are introduced to give resilience to the electrodes and a third wire is used to support the bridge. The electrodes 5 and 6 may be different lengths so that they are applied to the surface with different pressures. The insulating bridge may also comprise short lengths of wire which are welded to the electrodes.
Patent GB-631505-A (GB)
Title: Coupling devices or filters for electrical wave transmission systems
IPC: H01P1/207
Filed: 1947-09-10
Abstract: 631,505. Impedance networks. WESTERN ELECTRIC CO., Inc. Sept. 10, 1947, No. 24825. Convention date, Sept. 14, 1946. [Class 40 (viii)] [Also in Group XL (c)] A frequency-selective coupling device comprises a closed wave-guide chamber of adjustable length connected near its ends to a pair of coaxial transmission lines and including means for providing an impedance mismatch between the wave-guide and the coaxial lines, so that reflected waves are set up in the chamber which impart a desired frequency-selective characteristic. Coaxial lines 1, 1<1>, Fig. 3, are coupled by projecting probes to wave-guide sections 2, 2<1>, joined together by a telescopic guide section 5, and having adjustable end pistons 4, 41. The probes are adjusted as regards penetration or position along a transverse dimension so as to match the characteristic impedance of the guide, and the pistons 4, 4<1> are adjusted to neutralize the effective shunt resistance introduced by the probes. This produces a broad band matching. The pistons 4, 4<1> are then displaced to produce reflections, and the length of the intervening wave-guide is adjusted to cause the reflections from the two ends to cancel out. Then, for the frequency at which the adjustment is made, an efficient transmission of power through the system takes place. The selectivity is increased the farther the pistons are removed from the initial position for broad band matching. Fig. 6 shows an arrangement in which the coaxial line probes are one half-wavelength apart, and the pistons are placed a large number of half-wavelengths along the guide. This gives a succession of separated sharp response curves as in Fig. 5. Alternatively, the probes may be spaced a long distance apart, and the pistons may be about one half-wavelength from the probes (Fig. 8, not shown). This gives a recurrent characteristic in which the minima are not zero, (Fig. 7, not shown). By adjustment .of the distance between the probes, a band-pass characteristic may be obtained. Fig. 14 shows an embodiment in which the wave-guide section contains an inductive iris 7. Three wires may be included (Fig. 16, not shown). In Fig. 19 the invention is embodied in circular section wave-guides, adjustably joined by a screwthreaded sleeve. Relatively slidable sections may be used (Figs. 18, 20, not shown).
Patent GB-743988-A (GB)
Title: Improvements in and relating to electrical relays
Inventor: WARRINGTO ALBERT RUSSELL VAN C
IPC: H01H53/10
Filed: 1952-10-03
Abstract: 743,988. Induction relays; protective cutout systems. ENGLISH ELECTRIC CO., Ltd. Oct. 2, 1953 [Oct. 3, 1952], No. 24843/52. Class 38(5) A transformer protection relay, responsive immediately to faults in the transformer but not responsive to the momentary large inrush of current which occurs when the transformer is switched on comprises an induction disc co-operating with an operating magnet 1 having two pairs of shaded poles a, b and c, d arranged on opposite sides of an unshaded pair of poles e, f; the windings on the poles a, b are in series with a condenser 12 tuned to give maximum torque to the disc in a contactclosing direction at the fundamental frequency of the enegizing current, while the windings on the poles c, d are in series with a condenser 15 tuned to give maximum torque in the opposite direction at the second harmonic of the supply frequency. The relay therefore does not respond to a momentary large inrush current since this contains even harmonic components which influence the restraining action of the poles c, d sufficiently. The induction disc may also be influenced by a restraining electromagnet 2, Fig. 4 and the windings 9 and 16 of the two electromagnets 1, 2 may be connected up in a protective system as shown in Fig. 6. Here the transformer is shown at 20 and current transformers 21. 22 on the input and output circuits convey current to the windings 9 and 16. When a fault occurs within the protected transformer 20, a large current flows in winding 9 to operate the relay but the currents in the two halves of winding 16 oppose each other so that the restraining action of magnet 2 is inappreciable. Specification 743,985 is referred to.
Patent GB-240878-A (GB)
Title: Signalling or alarm devices operable in response to faults in an electric distribution system
IPC: G08B21/00
Filed: 1925-10-06
Abstract: 240,878. International General Electric Co., Inc., (Assignees of Allgemeine Union Elektricitõts Ges.). Oct. 6, 1924, [Convention date]. Release indica. tors audible and visible signalling systems.-A visible and audible signalling or alarm device L, H, operated by the closure of a - switch s in response to fault on a system and the consequent closure of an electromagnetic switch with contacts K<1>, is cut - out of action by manually rotating a contact disc W carrying contacts K<2>, K<3> in the alarm circuit. The disc is automatically locked in the displaced position by the engagement of a pivoted spring- mounted detent n<3> on the disc with a detent m on the armature t. In the displaced position of the contact disc an alternative visible indicator consisting of a wing F<1> on the disc appears behind a window S and the current in the electromagnetic switch is automatically reduced by introducing resistance in the circuit by means of the contacts K<4>. The alternative indicator remains in view until the fault has been removed whereupon the switch s opens and consequently the contacts K<1> open and the armature t assumes the off position shown. This releases the spring-controlled contact disc and the indication F<1> is withdrawn.
Patent GB-577451-A (GB)
Title: Improvements in or relating to the flanging of sheet metal plates, strips and the like
IPC: B21D5/06
Filed: 1944-12-12
Abstract: 577,451. Flanging plates or strips. FAIREY AVIATION CO., Ltd., and WELHAM, G. L. F. Dec. 12, 1944, No. 24899. [Classes 83 (ii) and 83 (iv)] Angular bending; drawing.-In apparatus for flanging sheet metal plates, strips, &c., as claimed in Specification 565,680, the roller and/or die carrying frames a are pivotally mounted on pins g within outer frames f connected together and to the abutment e by links comprising members m, n connected by a screwed stud and mounted on pins k in bifurcated joints h pivoted in the frame.
Patent GB-1495776-A (GB)
Title: Film-forming olefin polymer compositions
IPC: C08L23/16
Filed: 1975-06-11
Abstract: 1495776 Laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 11 June 1976 [11 June 1975] 25010/75 Heading B5N [Also in Divisions B2 and C3] Multilayer heat-sealable products comprise a substrate film of a C 2-6  α-olefin polymer having bonded to at least one face thereof a film of a composition comprising (1) a copolymer of 80-95% propylene with a C 4-10  α-olefin and (2) 25-90% of a polymer of a C 4-10  α-olefin with 0-10% of a C 2-10  α-olefin. Bonding may be effected by means of adhesives or by coextruding the substrate polymer and composition. The products or substrate films may be biaxially stretched and heat set. In examples substrate films of polypropylene or reprocessed triple layer film having films of blends of propylene / butene- 1 copolymers with polybutene - 1 or butene - 1 / ethylene copolymers bonded to both faces thereof are formed by coextrusion.
Patent GB-228483-A (GB)
Title: Improvements in or relating to sleepers for railways, tramways and the like
IPC: E01B9/22
Filed: 1924-10-21
Abstract: 228,483. Davis, F. J. Oct. 21, 1924. Addition to 206,254. Sleepers, securing rails to; chair keys. - The projection h carrying the tongue k is formed separately and is secured to the sleeper c by bolts or rivets j. The lug d is riveted at e to the sleeper, and may be replaced by a key g and projection h as on the opposite side of the rail.
Patent GB-324684-A (GB)
Title: Improvements in or relating to insulated conductors
IPC: H01B13/12
Filed: 1928-08-31
Abstract: 324,684. White, A. E., (Rockbestos Products Corporation). Aug. 31, 1928. Cables and conductors, apparatus and processes for making; insulating coverings for cables and conductors.-In the manufacture of insulated electrical conductors, a ribbon-like sliver of fibres is applied to the conductor, previously coated with adhesive, so that the fibres lie generally parallel thereto, pressure is applied so as to embed the inner fibres in the adhesive to maintain their parallel arrangement, and the outer fibres are then arranged in a direction generally circumferential of the conductor by the action of a rotating wiping device. In the embodiment of the invention described, the sliver 1, Fig. 3, is taken from the card machine 12 by a comb 13 and is laid over a wire 15, previously coated with adhesive in a trough 2, as it lies on an endless moving support 14. The wire and sliver then passes between two belts 17, 18, Fig. 4, which have a longitudinal progressing and laterally reciprocating movement by which the sliver is rolled about the wire and the inner fibres embedded in the adhesive without substantially disturbing their parallel relation to the wire. A rotary wiping device 19, Fig. 5, consisting of two spring fingers consolidates the coating and disposes the outer fibres transversely of the wire, which then passes through a water-proofing composition 22, to another wiper 23 and a polishing device 24 consisting of two polishing blocks 25, Fig. 8, freely mounted in the rotating frame 26 whereby they engage the wire under the influence of centrifugal force.
Patent GB-259605-A (GB)
Title: Improvement in suction cleaners
IPC: A47L5/34
Filed: 1926-05-25
Abstract: 259,605. Kirby, J. B. May 25, 1925, [Convention date]. Vacuum cleaners.-The wheels are carried by gudgeons eccentrically mounted on a flat-sided bar 37, Fig. 3, which may engage a bracket 36. Fig. 4, with any side uppermost to adjust the height of the body on the wheels. The motor casing 2 is fitted with a sad-iron handle 8 formed with eyes 16 for the attachment of snap hooks on a shoulder strap. A long propulsion handle may replace the handle 8. The rigid nozzle 20 has a flange with a projection 25 fitting into a pocket 31 on the fan casing; the upper side of the flange is held by a turn-button 26. The pocket is formed by two sheets of metal which at the bottom form a square recess 36, Fig. 4, to receive the crossbar 37 having eccentric gudgeons 38 for the wheels. A part of the cross-bar is cut away, engaging a part 41 of the bracket to centre the cross-bar.