baber/WOPTO huggingface dataset:
Patent GB-1220148-A (GB)
Title: Rectifier arrangement
IPC: H01L23/473
Filed: 1968-08-01
Abstract: 1,220,148. Rectifier assemblies. SIEMENS A.G. 1 Aug., 1968 [26 Oct., 1967], No. 36865/68. Heading H1K. A rectifier assembly comprises two or more parallel stacks of rectifier elements clamped between yoke members, the elements at one end of each stack being electrically interconnected and electrical lead-in and out conductors being disposed to one side of the stacks and connected thereto by resilient members. Fluid coolant is passed through hollow cooling elements which form part of the stack and are thus pressed into heat conducting contact with respective rectifier elements. In the arrangement shown in which only one stack is fully visible the elements, encapsulated in disc shaped housings are connected to form a 3-phase bridge. The D.C. output conductors P, N and A.C. inputs R, S and T (not visible) include flexible links 39 and the stacks may be suspended from them. Their ends are clamped between hollow cylindrical cooling elements 9, 10, 11 and may form cover-plates therefor. Coolant is supplied to the cooling elements via inlet and outlet manifolds 36, 37 prefabricated from plastics material and the entire assembly sealed in a watertight casing 38 thereby preventing ice accumulation when the system is operated at sub-zero temperatures as when cooling is achieved by evaporation of low boiling point coolants in the hollow elements. The stacks are clamped between yokes 20, 21, one of which electrically connects the end elements of the stacks. Clamping pressure is provided by a central nut and bolt arrangement and is communicated to the stacks via balls disposed between them and the yoke 20. Where, as shown, the rectifier elements are thyristors the controlling pulse repeaters 40 are mounted against the stacks. An arrangement with vertical stacks is also envisaged.
Patent GB-844972-A (GB)
Title: Improvements in or relating to pre-boarding machines
IPC: D06C5/00
Filed: 1957-11-26
Abstract: <PICT:0844972/IV (c)/1> <PICT:0844972/IV (c)/2> A preboarding machine for nylon stockings comprises a steam chamber 10 having an opening which can be closed by a sliding door 14, a pair of trays 11, 12 in the form of wheeled carriages each carrying a number of forms 13 for the stockings, and two tray holders each having a rail track for receiving a tray, which tray holders are pivotally mounted on opposite sides of the chamber opening so as to be swingable about an upright axis from a first position to a second position, the first position being a position in front of the opening such that the tray may be run from the tray holder rail track along a further rail track into the chamber and vice versa, and the second position being a loading position away from the chamber opening to one side thereof, the loading positions for the two tray holders lying on opposite sides of the opening so that, when one tray holder is in the loading position, the other tray holder may be positioned in front of the opening for moving a tray into or out of the chamber.  As shown, one tray 11 is located within the chamber and the other tray 12 is outside the chamber.  Preferably means are provided for connecting the two tray holders so that, as either one is swung from its first position to its second position, the other is moved viceversa. The connecting means may comprise a strap e.g. a rigid link 50, pivotally connected to the undersides of the two tray holders. The pivot axes for the tray holders may be arranged approximately in line with the front end of the of the tray holders, i.e. the end adjacent the opening to the chamber, and the strap may be pivoted at both ends to pivot points on the underside of each tray holder, these pivot points being in a straight line such that, when one tray holder is in the loading position and the second is adjacent the chamber opening, this line makes an obtuse angle facing the chamber opening with the line joining the pivot point for the strap on the second tray holder to the pivot axis about which the second tray holder can be swung.  The tray holders may consist of pivoted brackets 24, 25, each supporting a pair of rails 29, 30 for the tray (see Fig. 2).  A spring loaded catch or other locking means may be provided on each tray holder for engaging a tray thereon, so as to lock the latter in position.  In addition, a spring loaded latch 32 may be provided for locking a tray holder adjacent the opening to the chamber and trip means for said spring loaded latch means may be provided, operated by a tray when run on to the tray holder so that the latch means is automatically released as soon as the tray has been withdrawn from the chamber on to the tray holder.
Patent GB-814707-A (GB)
Title: Improvements in the production of gases containing sulphur dioxide and of solid roastng products free from arsenic and antimony by fluidized layer roasting of materials containing roastable sulphur in addition to arsenic and/or antimony
IPC: C01B17/52
Filed: 1957-11-27
Abstract: In roasting of materials containing roastable sulphur together with arsenic and/or antimony-e.g. pyrites, to form SO2, and solid residues free from arsenic and antimony, in a 2-stage fluidized layer process, the roaster gases and dust containing arsenic or antimony entrained therein from the first stage of the roasting process are subjected to dust removal above 600 DEG  C. using say a cyclone separator, and entrained dust remaining in the roaster gases is burnt by subsequent combustion with oxygen or free oxygen containing gases, e.g. air in a small combustion chamber positioned after the separator.  The proportion of oxygen or free oxygen-containing gases introduced into the combustion chamber is regulated to achieve combustion at a maximum temperature, Fe, As and Sb impurities being converted to the corresponding oxides Fe2O3, As2O3 and Sb2O3.  The hot combustion gases are cooled to 450-350 DEG  C. in a heat exchanger which may be a variable steam boiler and are finally subjected to electrical gas purification. Dust free from impurities may be removed from the heat exchanger and electrical gas purifier.  Specifications 759,260 and 811,859 are referred to.
Patent GB-1117381-A (GB)
Title: Tape recorder and tape deck assembly therefor
Inventor: HOWARD RONALD LESLIE
IPC: G11B5/55
Filed: 1964-09-09
Abstract: 1,117,381. Tape recorder drives. V.T.N. HOLDINGS. 9 Dec., 1965 [9 Sept., 1964] No. 36960/64. Heading G5R. The cage 5, Fig. 1, of an external rotor Papst squirrel cage motor 3 extends through an opening 4 in the deck 1 and drives, via an engageable idler 63 the rim 64 of the feed-spool carrier for fast rewind, while the shaft 8, Fig. 2, of the motor carries a wheel 9 which drives the capstan flywheel 10 via an idler 12, thus dispensing with many speed-reducing components. The take-up reel is driven from the tape pinch-roller 31, Fig. 1, via an idler 33 as described in Specification 908,279. Solenoid 19 acts to engage pinch-roller 31, tape pads 49, 49<SP>1</SP> and to actuate switch 57, Fig. 2, which de-energizes solenoid 95 to release takeup reel brake 89, whenever a selector button is pressed. The 16-track head 48, Fig. 1, may move into an alternative position under the action of solenoid 59 to scan a 32-track tape. If no selector button is pressed, a timer (not detailed) stops the motor. Tape-foils, acting at 97, 98 initiate rewind and stop-after-rewind control circuitry (not detailed). Solenoid 76, Fig. 2, both engages rewind drive and removes a back-tension brake 80, Fig. 1. The tape deck may be used in a recorder as described in Specification 36959/64.
Patent GB-994369-A (GB)
Title: Improvements in and relating to dynamo-electric machines
Inventor: PUTZ WALTER
IPC: H02K3/51
Filed: 1961-10-16
Abstract: 994,369. Securing coils for dynamo-electric machines. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Oct. 16, 1961, No. 37020/61. Heading H2A. The rotor end winding of a dynamo-electric machine is supported by circumferentially arranged glass fibres embedded in an insulating medium. In Fig. 2, the end winding 12, 13 is supported by windings 14 of glass fibre and by further fibres 17 secured between the windings and to a member 18. An insulating medium is either coated on the fibre before winding or applied to the surface before winding so that it is squeezed between the turns when the winding is applied. The medium is then hardened, preferably in a vacuum and foil may be temporarily applied over the medium to help exclude air. In Fig. 4 (not shown), a complete end cap is formed around an inner cap by the impregnated glass fibre, while in Fig. 3 (not shown), the impregnated fibre fills the space between the rotor end and an end disc, the filling being completed by an outer layer of insulating material.
Patent GB-350397-A (GB)
Title: Manufacture of viscose
IPC: C01B11/06
Filed: 1929-12-03
Abstract: A mixture of alkalized cellulose and excess lye containing at most 25 per cent of cellulose is sulphidized without previously removing the excess lye and the sulphidized mass is diluted, if desired, to the required cellulose content and viscosity.  It is stated that a completely clear viscose may be obtained in a few hours, and by selecting the concentration of lye at the beginning of the process, the viscosity of the product may be varied within wide limits without the usual step of ripening the alkali cellulose.  In examples, a viscose obtained by using lye of 19 per cent strength has a viscosity of 15 seconds (ball-viscosimeter), whereas a viscose of similar cellulose content made with the use of a lye of 12 per cent strength has a viscosity of 50 seconds.
Patent GB-1110119-A (GB)
Title: Seals
Inventor: CLARKE FRED
IPC: F16J15/16
Filed: 1964-09-11
Abstract: 1,110,119. Seals. JOSEPH LUCAS (INDUSTRIES) Ltd. 9 Sept., 1965 [11 Sept., 1964], No. 37215/64. Heading F2B. A shaft seal backing ring 15 has a greater resistance to extrusion than the sealing ring 14 and is formed with a first side arranged to bear against a body 11 and two further sides extending at acute angles to the first side, one of the further sides being arranged to abut a face 13 of the groove 12 for the sealing ring while the other further side is presented to the sealing ring. In a modification, Fig. 2 (not shown), the backing ring (15) is angled away from its co-operating face (13); in this arrangement the backing ring tilts into engagement on application of fluid pressure. If desired, two backing rings may be employed with one or two sealing rings. The invention may also be applied to face seals.
Patent GB-1271823-A (GB)
Title: Stator blade rings
IPC: F01D25/12
Filed: 1969-07-24
Abstract: 1,271,823. Turbines; axial-flow compressors and pumps. SULZER BROS Ltd. July 24, 1969 [July 26, 1969], No.37292/69. Headings F1C and F1T. The subject matter of this Specification is the same as that of Specification 1, 271, 822 but the claims are concerned with the cooling of the journal housings of the adjustable stator blades.
Patent GB-504711-A (GB)
Title: Improvements in signal-receivers for carrier-telephony systems
IPC: H04J1/14
Filed: 1938-12-23
Abstract: 504,711. Carrier telephone systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 23, 1938, No. 37464. Convention date, Dec. 27, 1937. [Class 40 (iv)] In a multiplex carrier telephone system in which signals, e.g. dialled impulses or calling signals, are transmitted by means of the carrier wave, which is suppressed during speech, these signals are combined in the receiver with a locally generated current of different frequency and the resulting beatfrequency current is rectified and controls a relay. The locally generated current may be derived from the carrier wave generator of another channel and may differ in frequency from the signal by 8 Kc. As shown, the signals pass via a valve V2 with a grid condenser and leak designed to keep the output constant for varying inputs, to a circuit which includes a rectifier F1 and in which they are combined with oscillations from a source H. The resulting beat-frequency oscillations are rectified at F2 and produce a biassing voltage across a resistance W in the grid circuit of a speech amplifier V1 so as to release a relay R2 in its anode circuit. In a modification, not described in detail, the relay is controlled by a separate valve the anode current of which is increased by the signals. Signals are transmitted by a relay R1 which connects the carrier source G1 to the line.
Patent GB-968951-A (GB)
Title: Foamed plastic diaphragm for sound transducers
IPC: H04R1/22
Filed: 1962-10-03
Abstract: 968,951. Acoustic diaphragms. AKUSTISCHE UND KINO-GERATE G.m.b.H. Oct. 3, 1962 [Oct. 4, 1961], No. 37475/62. Heading B5A. [Also in Division H4] A sound transducer diaphragm is made by cold or hot pressing the rim zone of a one-piece moulding of foamed plastic (Fig. 3a) to form a thin section of planar, corrugated or other shape (see Fig. 3b). Other parts of the moulding may also be pressed, e.g. flat portions to receive a moving coil drive. Diaphragms may have covering layers, and various shapes are described, hollow conical (Fig. 2b), solid conical (Fig. 6, not shown) also a flat diaphragm, oval in outline (Fig. 5, not shown). In the pressing, one die may be made of rubber.
Patent GB-853351-A (GB)
Title: Improvements in or relating to indoor bowling greens
Inventor: ROYLE HARRY PERCIVAL
IPC: A63D1/00
Filed: 1957-12-03
Abstract: 853,351. Bowling greens. ROYLE (BOWLS) Ltd., T. Dec. 2, 1958 [Dec. 3, 1957], No. 37632/57. Drawings to Specification. Class 20(4) An indoor bowling "green" of the crowned type is assembled from panel-like sections on a light framework. A suitable covering (e.g. felt underlay and a stretched cover) is provided.
Patent GB-996317-A (GB)
Title: Preparation of fibrous titanium dioxide
IPC: C09C1/36
Filed: 1963-09-26
Abstract: Titanium dioxide fibres are produced by recrystallizing TiO2 from a solution thereof in a molten mixture of boric oxide and one or more alkali metal halides and/or alkaline earth metal halides by cooling the solution from above 1000 DEG  C. to below 1000 DEG  C.; the proportion of boric acid to total metal halide in the molten mixture being from 1 : 9 to 9 : 1 by weight.  At least 2 metal halides may be present in the molten mixture.  The TiO2 may initially be dissolved in the molten mixture of boric acid and metal halide or a dry mix of the components may be heated.  The TiO2 used initially may be in the form of dry finely divided particles of average size less than 1 micron.  The solution of TiO2 may be cooled down from 1250-1360 DEG C. Examples using mixtures containing KCl and KCl and NaCl are given. The TiO2 fibres produced have a fibre cross-section of less than 25 microns and an axial ratio of at least 10 : 1.
Patent GB-1071107-A (GB)
Title: Improvements in or relating to window constructions
Inventor: LAWRANCE DOUGLAS WARE
IPC: E06B7/10
Filed: 1964-09-17
Abstract: 1,071,107. Ventilators. QUICKTHO ENGINEERING Ltd. Aug. 16, 1965 [Sept. 17, 1964], No. 37933/64. Heading F4V. A window construction includes a frame to receive a window element comprising an inner section 15 as a mounting for it, and an outer section 13 to position the frame, spaced apart in the depth of the frame to form a cavity 20 with an inlet 19 (in the form of slots) on one side of the window, and an air outlet, closable by a pivoted flap 21, on the other. The flap 21 pivots at 22 in the groove 23 in the inner section and forms a seal with the other on closing. It may be held so by magnets 24 interacting with magnetic keepers 25, both of which are in undercut slots. The flap 26 acts as an opening handle.
Patent GB-1404008-A (GB)
Title: Steering axle
IPC: B62D7/00
Filed: 1972-08-15
Abstract: 1404008 Vehicle steering EATON CORP 15 Aug 1972 [17 Aug 1971] 38023/72 Heading B7H In a steering axle having steering arms 30, 32 interconnected by the rod 56 of an hydraulic power steering piston/cylinder assembly 52, 54, the power cylinder 52 is mounted for translational and rotational movement relative to the axle frame 12 to effect differential steering. Cylinder 52 is mounted by trunnions 72, 74 in slots 80 (82) (Fig. 6, not shown) formed in triangular plates 34, 36, the members 72, 74 carrying rotatable bearings (76) (78) (Fig. 6) which cater for the cylinder movement longitudinally and rotationally of the slots. The plates 34, 36 are interconnected by vertical plates 38, 40, the former mounting a member 42 by which the axle may be mounted for oscillation on a vehicle.
Patent GB-1099620-A (GB)
Title: Grease compositions
Inventor: EDWARDS DAVID ALUN
IPC: C07F5/06
Filed: 1966-08-24
Abstract: A grease comprises a major proportion of a lubricating oil and a minor proportion of a complex aluminium soap containing at least one hydroxyl group and dissimilar anions said anions comprising an anion derived from a long chain carboxylic acid, an anion derived from a short chain organic acid containing an aromatic or heterocyclic ring, and an anion derived from a short chain organic acid containing an aromatic or heterocyclic ring wherein the ring has one or more amino, sulpho, thio, nitro, phosphate, thiophosphate, phosphine or halogen substituents.  Long chain carboxylic acids are defined as C8+ aliphatic acids or cyclic carboxylic acids having a C5+ hydrocarbyl substituent or a C5+ hydrocarbyl aliphatic acid having a cyclic substituent.  Short chain organic acid is defined as a cyclic substituted aliphatic acid wherein the hydrocarbyl group having the cyclic substituent contains not more than 3 carbon atoms or a cyclic acid having a C1-C4 hydrocarbyl substituents. Many examples of each type of acid are given including sulphonic acids.  The lubricating oil may be mineral or synthetic e.g. polyalkylene oxide oils, silicones, polyphenyl ethers, dicarboxylic acid esters, and complex esters. The greases may also contain dinonyl barium naphthalene sulphonate and zinc dialkyl dithiophosphate.
Patent GB-1115558-A (GB)
Title: Process for the preparation of polyamides
IPC: C08G69/20
Filed: 1966-08-24
Abstract: A polyamide may be prepared by polymerizing an o -lactam having at least 4 ring carbon atoms in the presence of a basic catalyst and a cocatalyst containing the group <FORM:1115558/C3/1> The cocatalyst may contain 1-600 such group linked directly in a chain or ring, the remaining phosphorus valencies being satisfied by halogen, -OR, -SR, or -NRR1 groups where R and R1 are aromatic or aliphatic hydrocarbon groups.  The reaction mixture may contain 0.1-10 mole per cent of catalyst and 0.02-5 mole per cent of cocatalyst.  Polymerization may be effected in a mould at a temperature between the m.p. of the monomer and that of the polymer, e.g. 120-170 DEG  C.  In examples, e -caprolactam and pyrrolidone are polymerized in the presence of NaOMe, KOH, NaH, PhMgBr, BuLi or NaOH as catalysts, phosphonitrilic chloride trimer, phosphonitrilic chloride tetramer, phosphonitrilic chloride polymer, hexabutoxy triazatriphosphorine, hexaphenoxy triazatriphosphorine, hexathiophenoxy triazatriphosphorine, N - benzoyl trichlorophosphine imide, N - methyl trichlorophosphine imide dimer, N - phenyl trichlorophosphine imide dimer and/or PCl3=NPCl2=NPCl4 as cocatalyst and MoS2 as filler and under a nitrogen atmosphere.
Patent GB-863377-A (GB)
Title: A method of manufacturing laminated mica products
IPC: C04B14/20
Filed: 1957-12-10
Abstract: 863,377. Mica products. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Dec. 10, 1957 [Dec. 10, 1956; Dec. 11, 1956 (2); Feb. 27, 1957; Nov. 15, 1957], No. 38328/57. Addition to 755,504. Class 140. [Also in Group XV] Mica products consisting of one or more layers of mica laminations bonded to a support surface are produced by wetting the mica laminations and subjecting the individual laminations to the effect of electrostatic forces on their way from a tray or feeding device to a glued surface of a plate, sheet, web or the like. The wetting agent may be an organic solvent, a liquid binding agent, or a liquid binding agent particularly a lacquer, dissolved or dispersed in an organic solvent. The mica laminations may be provided with a film of solidified binding agent prior to wetting. The wetting may be carried out in an air-conditioning chamber. The laminations may be suspended in the wetting agent and are supplied therefrom to the electrostatic exfoliating device. The laminations may be withdrawn from the suspension and supplied to the device by electrostatic spraying. The laminations may be subjected to a cleaning process before wetting e.g. by blowing in a turbulent gas stream or to ultrasonic treatment under water. The electrodes of the exfoliating device may be subjected to a shaking or vibrating movement. As shown, mica laminations 4 which have been cleaned and provided with a film of solidified binding agent are supplied from feed device 1, contained within air conditioning plant 3. The laminations having a film of liquid wetting agent condensed thereon are conveyed by belt 2 into the region of two oppositely disposed and oppositely charged electrodes 6 and 7. The laminations are caused to move along a zig-zag path under the action of the electrostatic field and finally drop on backing 8 prior to pressing and heating to consolidate the sheet in known manner.
Patent GB-1096850-A (GB)
Title: Method and apparatus for ripping rock
IPC: E02F5/32
Filed: 1965-09-08
Abstract: 1,096,850. Rippers. A. G. BODINE. Sept. 8, 1965 [Oct. 7, 1964], No. 38437/65. Heading E1G. [Also in Division F2] In ripping a rock layer,. the point P of a ripper arm 30 is strongly biassed against a shoulder of the rock and the bar 30 is elastically vibrated at its sonic resonant frequency by a vibration generator 64 situated at an upper anti-node such that the point P has a component of sonic vibration generally parallel with the top surface S of the rock. The conventional. ripper point P is mounted at the lower end of a ripper bar 30 pivoted about a node N' in a rubber bush mounting carried on a casting having limited lateral pivotting relative to a liftable draw-bar assembly on the rear of a crawler tractor. Draw-bar pull may be applied to the bar 30 through the node pivot N' or through springs 44 tuned to vibrate at the sonic frequency only at the end adjacent the bar. The vibrator generator 64 is driven from a hydraulic motor carried on a mounting pivotal about the node N' and centralised by tuned springs bearing on the upper end of the bar 30.
Patent GB-1187838-A (GB)
Title: Process for Making a Rimmed Steel Sheet Non-Ageing.
IPC: C21D3/08
Filed: 1967-08-21
Abstract: 1,187,838. Refining steel. KONINKUJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN N.V. Aug.21, 1967 [Aug.23, 1966], No.38453/67. Addition to 1, 023, 505. Heading C7D. Rimmed steel is rendered non-ageing by annealing it in the form of an open coil in the presence of a nitrogen-binding substance such as milled steel, the latter being outside the coil and spaced from it, while a hydrogen containing gas is circulated through the coil and in contact with the nitrogen-building substance. The milled steel may be in the form of an open coil of sheet, or may be in the form of scrap; alternatively all or part of the inner wall of the furnace may be formed of milled steel or other material containing a nitrogenbinding substance such as aluminium. Preferably the gas is maintained at a pressure higher than atmospheric by withdrawing not more than 10% of the volume and replacing or augmenting the withdrawn gas by fresh gas. Use of a 25% nitrogen/ 75% hydrogen atmosphere is mentioned, while an atmosphere of 23% nitrogen/71% hydrogen/6% water vapour will simultaneously decarburise the steel. As exemplified and illustrated the process is carried out in a bell-type furnace.