baber/WOPTO huggingface dataset:
Patent GB-526452-A (GB)
Title: Improvements in and relating to electric resistance heating units
IPC: H05B3/06
Filed: 1939-03-16
Abstract: 526,452. Electric heating. BRITISH THOMSON-HOUSTON CO., Ltd., and BRUNT, B. P. March 16, 1939, No. 8450. [Class 39 (iii)] Each one of four adjacently located end portions of a pair of sheathed wire heating elements comprising a boiling plate is connected to a flexible lead 2. and a terminal box 3 of the mica glass composition described in Specification 152,780, [Class 56], and known under the Trade Name of "Mycalex" is moulded around the connection. The upper part of the terminal box is shaped to shield the flexible leads from spilled liquid, and is provided with hinge holes 4 for pivotal mounting as described in Specification 363,774. An earthing plate 5 is moulded into the terminal box. The box may be made in sections corresponding to the heating units. Specification 347,753, [Group XXXVI], also is referred to.
Patent GB-835785-A (GB)
Title: Method of making diaryl phosphites
IPC: C07F9/145
Filed: 1957-03-15
Abstract: Diaryl phosphites are obtained by reacting at elevated temperature a triaryl phosphite and phosphorous acid.  It is preferred to use two mols. of the triaryl phosphite and one mol. of phosphorous acid. Suitable reaction temperatures are between 40 DEG  C. and 200 DEG  C. and the reaction is usually complete in about 1 to 4 hours.  Examples are given for the preparation of di-(p-cresyl) phosphite, di-(meta-cresyl) phosphite, di-(ortho-cresyl) phosphite, di-(p-chlorophenyl) phosphite, di-(p-nitrophenyl) phosphite and di-(tertiary butyl phenyl) phosphite and the invention also comprises these compounds, as well as a mixture of the three isomeric dicresyl phosphites such as is obtained by reacting a tricresyl phosphite derived from commercial cresol with phosphorous acid at elevated temperature, as new products.  An example is also given for the preparation of diphenyl phosphite.  The process is also applicable to the production of dialkyl, dichloroalkyl, dinitroalkyl, and dicyanoalkyl phosphites.  The diaryl phosphites may be used as flameproofing agents for chlorinated wax or naphthalene and as anti-clouding agents.
Patent GB-288968-A (GB)
Title: Improvements in or relating to the combustion chambers of internal combustion engines
IPC: F02B23/08
Filed: 1928-03-22
Abstract: 288,968. Darche, A. A. A. April 16, 1927, [Convention date]. Cylinders, combustion chambers of, and arrangement of igniters and ports in.-The piston approaches the cylinder head with minimum mechanical clearance so as to close progressively the passage 6 leading to the combustion chamber, which is entirely confined to one or two side pockets containing either side or opposed valves. As shown the combustion chamber 7 is of toric form and contains inlet and exhaust valves 9, 10 and a sparking plug 8; this arrangement being repeated on the opposite side of the cylinder.
Patent GB-470587-A (GB)
Title: Improvements relating to loom shuttles
IPC: D03J5/08
Filed: 1936-03-24
Abstract: 470,587. Shuttles. PILKINGTONS, Ltd., and PILKINGTON, R. March 24, 1936, No. 8720. [Class 142 (iii)] A peg or projection A on a U-shaped spring clip C enters a hole &c. B in the weft carrier when this is in weaving position. The clip is sprung into a hole F, and may be detached from the shuttle when weaving with weft carriers that are not formed with a hole or recess. A peg &c. H on the tongue G enters a recess J in the weft carrier and thereby aligns this with its hole opposite to the peg &c. A. According to the Provisional Specification, the peg &c. may be formed in a piece with the shuttle or may be of different material such as metal or wood. It may be driven into a hole.
Patent GB-177781-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M15/10
Filed: 1922-03-27
Abstract: 177,781. Siemens &. Halske Akt.-Ges. March 31, 1921, [Convention date]. Automatic exchange systems; metering systems.-Means for recording both the number and duration of telephone calls for use at an exchange in order to make traffic observations upon particular lines, comprises two meters of similar construction, one energized once for each call, and the other operated at regular intervals of time throughout the call. The meters may be arranged as a single unit and the system is provided with means such as sets of terminals at which a relay controlling both meters may be readily connected or disconnected, alternate arrangements being provided by which the meters may register either only outgoing calls or both outgoing and incoming calls. Fig. 1 shows the invention applied to an automatic exchange system at a preliminary selector VW. An auxiliary relay H, connected in series with the winding II of the cut-off relay T, is energized when an idle trunk is seized, closing the circuit of one meter Z<1>, recording the number of calls, and preparing the circuit of the duration meter Z<2>, which is periodically energized by a timing- device 9. Fig. 3 shows a system provided with sets of terminals V1, V2 at which the auxiliary relay H may be connected, the connection at the set V, corresponding to that shown in Fig. 1 and recording only outgoing calls, whilst with the relay H connected at the terminals V2, in series with both windings of the relay T, both outgoing and incoming calls are recorded. In an alternative arrangement, recording both sets of calls, the relay H is connected in shunt with the winding II of the relay T. Fig. 6 shows an example of the application to manual exchange systems, AK, VK being answering and calling jacks. The relay H is connected at V, or V2 according as both incoming and outgoing or only outgoing calls are to be metered. The metering may be made dependent upon the reply of the called subscriber by making the relay H only responsive to an increased current which is then supplied.
Patent GB-970513-A (GB)
Title: Means for operating the stoppers of casting ladles
IPC: B22D41/20
Filed: 1963-03-05
Abstract: 970,513. Operating ladle stopper rods. JUNKERATHER MASCHINENFABRIK G.m.b.H. March 5, 1963 [March 31, 1962], No. 8794/63. Heading F4B. Means for operating the stopper rod of a casting ladle comprises a " self-locking " lifting and lowering mechanism driven by an electric motor fitted to and guided by a mounting fixed to the outside of the ladle. The term " self-locking " designates a drive mechanism in which the input and output are not interchangeable in function, and which will therefore not run under forces imposed by the stopper rod and its associated movable apparatus. A nozzle 2 of the casting ladle 1 is controlled by the stopper rod 3 which is motivated by mechanism 5 driven by an electric motor 10. The mechanism comprises a threaded spindle 6, or a toothed rack, on which the housing 5a can be axially displaced by means of a shift nut 8 on thrust bearings 7, or by a worm engaging the rack. The thrust is taken at a pin and slot 14, bearing 9 at the lower end of the casing 13 and is transmitted to the cross-bar 4 by the thrust rod 11 mounted in a bearing 12. A hand control 19 is provided to motivate the rotor 10a, through which the spindle passes, in case of electrical failure. The casing 13 has a removable base 15, thus allowing the housing to be fitted in slide rails 16, Fig. 2 (not shown).
Patent GB-917393-A (GB)
Title: Improvements in continuous action centrifuges
IPC: B04B3/00
Filed: 1959-03-13
Abstract: 917,393. Centrifugal strainer separators. BRAUNSCH\VEIGISCHE MASCHINENBAUANSTALT A.G. March 13, 1959 [March 13, 1958], No. 8812/59. Class 46. The basket 2, Fig. 1, has a raised central portion 8 within which is located the upper, 10, of two bearings for a driving shaft 1, the bearing 10 being above the level of the bottom 9 of the basket. The annular region 9 is that to which material for treatment is fed by a feeder 12 which may be opened and closed by a slide (not shown). Preferably the slide is maintained open and the rate of feed varied by moving into position, across the feeder opening, one or other of four jets 35 to 38, Fig. 6, mounted on a holder 33 sliding in a guide 34. Water may be fed by a pipe 13, Fig. 1, on to a distributor plate 14, Figs. 1 and 2, screwed into a collar 16 at the top of the shaft 1 and having a cavity 15 for receiving the water. To prevent solids from falling back into the basket 2 its discharge orifice 18, Fig. 3, is fitted with a flexible ring 19 having slots 21 and being fixed to the lid 22 of the centrifuge housing. To prevent creep of liquid (especially when viscous) up the inside of the partition wall 4 from the liquid-receiving space 5 into the solid-receiving space 6 an inner wall 24, Fig. 5, terminating above the bottom of the liquidreceiving space, is provided. The upper end 27, 30 of the basket is appropriately shaped to throw off liquid.
Patent GB-758687-A (GB)
Title: Improvements in or relating to electric arc spot or tack welding
IPC: B23K9/007
Filed: 1954-03-25
Abstract: 758,687. Controlling welding arcs. UNION CARBIDE & CARBON CORPORATION. March 25, 1954 [April 15, 1953], No. 8813/54. Class 38 (4). [Also in Group XXII] In spot or tack welding, i.e. locally welding overlapping parts or welding one pair or a plurality of stacked pairs of abutting parts to each other and to an underlying part, with an inert gas shielded consumable electrode arc, the welding is automatically timed to interrupt the electrode feed and flow of welding current before a hole is fused entirely through the workparts. In an embodiment a gun 12 is held with its nozzle 14 on the upper of two parts 10, 10. The trigger 16 is pressed to close a switch 18 and energize coil 20 of a relay 22. The relay contacts 36, 38, 40 close; 36 retains coil 20 energized on release of the trigger; 38 energizes welding relay 44 to apply welding voltage across the work and electrode 56; and 40 operates a control 66 which controls a feed motor 70 to feed the electrode towards the work either with high-frequency starting or by contacting the electrode with the work, then withdrawing to strike an arc and then feeding forward again. The control 66 also operates valves for gas, e.g. helium, argon or mixtures thereof delivered from nozzle 14 and for gun cooling water. When the arc is established an over voltage coil 83, energized by the open circuit welding voltage, is de-energized and contacts 90, 92 return to normal position shown. The coil 94 of under voltage relay is energized to close contact 103 to energize coil 96 of a time-delay relay. At a predetermined time after arc establishment, e.g. 1-2 seconds, the contact 26 of the delay relay is opened to de-energize coil 20 which releases contacts 36, 38, 40 to stop welding and return parts to normal position. In a modification the gun is applied to the work and welding voltage is applied across work and electrode which latter is fed and retracted to strike an arc. After about ¢ second when the parts are fused at least to the interface between the parts the welding is stopped. A time interval of about ¢ second during which shielding gas still flows allows the metal to cool. A second welding cycle is then started during which weld metal fills the original crater. This cycle is automatically ended and all controls return to normal position. Stainless and carbon steel, aluminium, aluminium alloys and copper may be welded. Slow sideways movement of the torch during the first and second cycles of the modified method is possible.
Patent GB-482782-A (GB)
Title: Improvements in the construction of wings for aircraft
IPC: B64C3/00
Filed: 1937-03-25
Abstract: 482,782. Aircraft wings. BRODEAU, A. H. J. March 25, 1937, No. 8839. Convention date, April 9, 1936. [Class 4] [Also in Group XXIII] An aircraft wing consists of a hollow body constructed of a sheet of material shaped to the wing contour and formed of a layer of agglomerated cork or other material having small mechanical resistance and low density stuck between two layers of plain wood or plywood. Alternative materials for the intermediate layer may be balsa wood, sponge ebonite, an agglomerate of vegetable matter or chemically obtained product. The wing may be composed of a number of longitudinal portions each consisting of such a hollow body shaped to a part only of the wing section and assembled in a cover of elastic material to enable the area or camber or both of the surface to be varied. The parts may be obtained by the separate moulding of sections which are subsequently united, the assembly being facilitated by local replacement of the cork by wood. According to the Specification as open to inspection under Sect. 91, the material described may be applied to the construction of box spars. This subject-matter does not appear in the Specification as accepted.
Patent GB-590244-A (GB)
Title: Process and apparatus for the regeneration of contact materials
IPC: B01J8/18
Filed: 1945-04-10
Abstract: In a process for burning carbonaceous material from a finely divided solid contact material by means of an oxygen-containing gas wherein the contact material is predominantly in a dense fluidized state, the contact material near the upper surface of the dense phase is maintained at a temperature below that of the main portion of this phase by continuously discharging a cooled portion of the contact material at about the height of the interface between the dense and vapour phases.  Damage to the contact material by overheating is reduced, and "after-burning" in the vapour phase avoided.  The temperature in the dense phase may be maintained above 1050 DEG F. and that in the vapour phase below 1050 DEG F.  The material to be treated is introduced through line 2, mixes with the oxygen-containing gas in line 5, enters the regenerator 6 through manifold 8, and is removed through line 10. A portion of the contact material is withdrawn via line 14, passed through cooler 17 and returned to the interface 7 via line 18, at the top of which a baffle 19 may be <PICT:0590244/III/1> provided.  Flue gas containing a lower concentration of free oxygen than that of the regenerating gas may be introduced into line 16 to circulate the contact material.  The process may be used for the reactivation, revivification, or regeneration of catalysts, adsorbents, and treating earths, and especially for the treatment of contaminated natural or synthetic clay-type catalysts used in hydrocarbon conversions.
Patent GB-1383444-A (GB)
Title: Non-dusting and non-caking mineral fertilisers and their manufacture
IPC: C05G3/20
Filed: 1972-02-25
Abstract: 1383444 Non-dusting; non-caking fertilizers HOECHST AG 25 Feb 1972 [26 Feb 1971] 8879/72 Heading C1B A mineral fertilizer is rendered non-dusting and non-caking by coating with a polyalkylene glycol or derivative thereof and a cationic and/or anionic surfactant. The polyalkylene glycol derivative may be a condensation product of an alkylene oxide with water, an alcohol, a phenol, an amine or a carboxylic acid. Examples illustrate the effect on 20/20, 13/13/21, 15/15/15, and 12/12/17/2 fertilizers.
Patent GB-645447-A (GB)
Title: Improvements in or relating to drums, kegs and like hollow-ware
IPC: E05C19/14
Filed: 1948-03-27
Abstract: 645,447. Hollow-ware lids. ROBINSON, G. A. March 27, 1948, No. 8897. [Classes 66 and 125(iii)] The lid 2 of a drum or keg &c. 1 is secured by a toggle 17, 18 pivotally held to the bead 5 of a depending flange of the lid 2, an end 18' of the toggle being inserted under the bead 6 of the rim of the drum &c- and the toggle pressed through a slot 15 in the flange of the lid so that it rests between the flange and the neck of the drum 1. In modifications, the pivot 5 is on a bracket on the drum wall or on the lid flange and the toggle engages over the bead 5 or under a rib on the drum etc.; in the former case, a projection may snap a peripheral rib 2a of the lid.
Patent GB-451094-A (GB)
Title: Improvements in apparatus for the measurement of self-inductance
IPC: G01R27/26
Filed: 1936-03-25
Abstract: 451,094. Inductance measurements. CAMPBELL, A., Culmora, Girton Road, Cambridge. March 25, 1936, No. 8924. [Class 37] Self-inductance is measured by connecting one terminal of a source of steady alternating-current A to the primary circuit of an inductometer and to one end of a parallel arrangement containing the secondary circuit with a measuring instrument and the unknown self-inductance L, the other supply terminal being connected to the opposite end of these parallel circuits. The inductometer comprises coils B1, B2, and an auxiliary zero-setting mutual inductance may be associated with it. Any A.C. meter may be used at H, those mentioned being a dynamometer type, a thermal converter plus galvanometer, or a rectifier and continuous-currentmeter. Specification 289,995, [Class 37], is referred to.
Patent GB-865846-A (GB)
Title: Improvements in or relating to apparatus for controlling the excitation of a dynamoelectric machine
IPC: H02P9/30
Filed: 1959-03-16
Abstract: 865,846. Automatic voltage-control systems. WESTINGHOUSE ELECTRIC CORPORATION. March 16, .1959 [March 20, 1958], No. 8965/59. Class 38 (4). In an automatic voltage regulator for an alternator in which the field of a D.C. exciter is intermittently energized through a transistor, the on/off ratio of the transistor is controlled by superimposing a sawtooth waveform on a voltage proportional to output voltage error. The output voltage of a 3-phase alternator 10 is rectified at 42 and applied to a Zener diode bridge 50 to provide a D.C. signal which has a median value when the output voltage of the alternator is correct, and rises or falls as the output voltage deviates one way or the other. This signal is applied between the base emitter of a transistor 220 to which is also applied a sawtooth voltage generated by a double-base diode relaxation oscillator 210 so as to produce pulses which are width modulated in accordance with the output voltage error. The pulses are amplified by transistors 230, 240, 250 to control a transistor 260 which is in series with the field of the exciter 20. The field, and the control circuits are normally energized from the output of the alternator through a rectifier 70, the supply for the relaxation oscillator and the early stages of the amplifier being stabilized by a Zener diode 74. It is stated that an independent D.C. source may replace the rectifier 70. An unspecified device 420 responsive to a current transformer 422 produces an output signal when the load current becomes excessive and this signal is applied over diode 412 to so bias transistor 230 as to cut off the transistor 260. For starting, an auxiliary D.C. supply 321 is connected by a switch 324 to supply the field and also to bias transistor 240 so as to render transistor 260 fully conducting. This bias is removed when the alternator builds up by a transistor 310 responsive to alternator output voltage over rectifier 316.
Patent GB-586670-A (GB)
Title: Enamels for pottery which are opaqued by zirconium compounds and process for preparing same
IPC: C03C10/00
Filed: 1940-05-20
Abstract: 586,670. Enamels. SOC. DE PRODUITS CHIMIQUES DES TERRES RARES. May 20, 1940, No. 8967. Convention date, May 26, 1939. [Class 56] An enamel for pottery is made by preparing a frit which is rich in silica and alumina, contains boric oxide, and is saturated with zirconium compounds, and adding in the mill an opacifier mainly comprising a zirconium compound. The opacifier may be zirconia or the vitrefied compound described in Specification 589,279. The silica content of the frit should be 40-55 per cent, the content of alumina should be between 4.5 and 10 per cent and the content of boric oxide should be at least 8 per cent. 5 to 7 per cent of zinc oxide and alkaline earth fluxes may be included. Part of the alkaline earth may be replaced by lead oxide, but a high alkali content should be avoided. A number of batches and the percentage composition of the resulting frits are given in the Specification.
Patent GB-227680-A (GB)
Title: Improvements in crystal detectors
IPC: H01L29/00
Filed: 1924-04-09
Abstract: 227,680. Harris, A. W., and Newson, G. April 9, 1924. Crystal detectors comprise an arm a loosely pivoted on ar insulating member i and carrying at one end the crystal e and at the other a pair oi studs b. The crystal and the studs rest on two metallic plates n, n<1>, connected to the terminals of the detector. The plate n<1> is recessed as shown to prevent the studs from sliding over the edge.
Patent GB-122352-A (GB)
Title: Improvements in and in Apparatus for Drying Paper, Paper-board, and the like Material in the Course of Manufacture.
IPC: D21F5/02
Filed: 1918-05-31
Abstract: 122,352. Thames Paper Co., and Privett, J. B. J. May 31, 1918. Superheating by electricity.-In apparatus for drying paper, exhaust steam entering the drying-cylinder a by a pipe b is heated in an electric heater i. The electric heater shown consists of thin metal tubes j connecting headers j<1>, j<2> and surrounded by high-resistance coils k.
Patent GB-526617-A (GB)
Title: Improvements in refrigerating systems of the inert gas type
IPC: F25B15/10
Filed: 1939-03-22
Abstract: 526,617. Refrigerating. ELECTROLUX, Ltd. March 22, 1939, No. 9105. Convention date, March 26, 1938. [Class 29] Absorption systems. - In a continuous-cycle inert gas system the relative amounts of liquefied refrigerant supplied from the condenser 11 to different parts of the evaporator 12 are varied automatically in response to the load on the evaporator. The condenser comprises a main part 11a which supplies liquid through a vessel 18 and conduit 19 leading to the cabinet-cooling part 12a of the evaporator, and a supplementary part 11b which supplies liquid through a conduit 21 connected to the freezing part 12b. A chamber 46 at the bottom of the evaporator serves to retain a pool of unevaporated refrigerant, and the supply of heat to the generator 10 is controlled by a thermostat 43 on the evaporator. The pool overflows through a seal 47 into the rich gas conduit 26 of the gas heat exchanger 31. A conduit 49 with cooling fins 51 is connected between the bottom of the pool chamber 46 and a sealing vessel 50 and a conduit 52 connects this vessel with the expulsion pipe 17 of the generator. The vessel 50 is also connected by a conduit 53 and the vessel 18 with the supplementary condenser. When liquid refrigerant in vessel 46 evaporates at a faster rate than that at which liquid flows down through the evaporator, as for example when a fresh freezing tray is inserted in the evaporator, the level in vessel 46 will be lowered and the seal in vessel 50 will open the conduit 52 for the passage of generated vapour through vessel 50, conduit 53 and vessel 18 direct to the supplementary condenser, and more vapour will condense in the latter than in the main condenser, and therefore more liquid refrigerant will be supplied to the lower than to the upper part of the evaporator to permit quick freezing. This occurs without affecting the control by the thermal element 43 and without increasing the cabinet cooling unnecessarily. The part 51 in conduit 49 serves as a condenser in starting-up, to provide the liquid trap.
Patent GB-375796-A (GB)
Title: Insulating oils for electro-technical purposes
IPC: H01B3/20
Filed: 1931-03-25
Abstract: Conductors in electric apparatus and cables are insulated by immersion in oil which has a mean molecular weight of 180-320, and, at 20 DEG  C., has a refractive index for sodium light of 1,460-1,510, no fraction of the oil having a molecular weight below 180 or a refractive index below 1,460.