baber/WOPTO huggingface dataset:
Patent GB-1464436-A (GB)
Title: Analogue gates
IPC: H01L27/088
Filed: 1974-05-07
Abstract: 1464436 Analogue gating circuits THOMSON-CSF 7 May 1974 [8 May 1973] 20167/74 Heading H3T  An analogue signal gating circuit comprises a field effect transistor T1 having its source connected to the input terminal E, its drain connected to the output terminal S and its gate electrode connected to a switching device T4, T5 which, under the control of control-signal (as shown applied to the gate T5) connects the source to a fixed potential (E 3 ) to switch the gate off or, to switch the gate on, connects the gate electrode to the output of a voltage follower T 2 , T 3  having its input connected to the circuit output. R 1  serves to discharge the gate capacitance when switching off. An integrated form of the circuit is described.
Patent GB-860563-A (GB)
Title: Improved method of surface treatment for non-ferrous bodies
Inventor: WELSH NORMAN CLIFFORD
IPC: C23C8/36
Filed: 1956-06-29
Abstract: A non-ferrous metal surface is hardened by electro-sparking it in the presence of at least one of the group carbon, nitrogen and oxygen, or also in the presence of an additional metal, so that there is formed on the surface a layer of a hard compound of an element of the said group with metal of the surface, or the additional metal, or both. Surfaces composed of titanium and zirconium and alloys thereof, and copper, may be hardened.  The sparking electrode may be made of graphite or the additional metal, the latter being exemplified by titanium, zirconium, tantalum, vanadium, chromium, molybdenum and tungsten.  Sparking may be effected in paraffin oil (to form carbide), in water (to form oxide), in nitrogen (to form nitride), in air (to form nitride and/or oxide), or from a carbon electrode in an inert atmosphere (to form carbide).  In the examples: (1) a titanium carbide layer is formed on titanium by sparking in paraffin oil using a graphite electrode; (2) a titanium nitride layer is formed on titanium by sparking in air using a titanium electrode; and (3) a titanium nitride layer is formed on copper by sparking in nitrogen using a titanium electrode.
Patent GB-606901-A (GB)
Title: Improvements in or relating to the recovery of guanidine salts
Filed: 1945-08-08
Abstract: Dry guanidine salts are obtained in finely-divided form from solutions or suspensions in volatile solvents containing liquid ammonia, by heating the solution or suspension under pressure and then spraying it into a chamber where the pressure is such that flash evaporation takes place.  The temperature of the liquid when sprayed should be sufficiently high (120 DEG  to 200 DEG  C.) to permit substantially complete evaporation of ammonia.  A solution of guanidine nitrate in liquid ammonia is prepared in autoclave 4 and run, whilst still hot, through jacketed pressure reducing valve 23 to nozzle 7 where it is sprayed into chamber 8.  The bulk of the ammonia immediately flashes into vapour and the guanidine nitrate settles as a finely-divided solid on the bottom 9 which is heated by steam jacket 16 to a temperature sufficiently high to assist the removal of unvaporized <PICT:0606901/III/1> ammonia.  Rotary scraper 11 sweeps the guanidine nitrate into trough 10 and then into steam-jacketed outlet pipe 18, from which it is discharged by screw conveyer 20. The ammonia evaporated in chamber 8 is taken off through pipe 22, condensed in condenser 25 and stored in tank 3.  Specification 544,774, [Group IV], is referred to.ALSO:<PICT:0606901/IV(b)/1> Dry guanidine salts are obtained in finely divided form from solutions or suspensions in volatile solvents containing liquid ammonia, by heating the solution or suspension under pressure and then spraying it into a chamber, where the pressure is such that flash evaporation takes place.  The temperature of the liquid when sprayed should be sufficiently high (120 DEG  to 200 DEG  C.) to permit substantially complete evaporation of ammonia. Crystallized dicyandiamide (10.8 parts) and ammonium nitrate (20.4 parts) are dissolved in liquid ammonia (19.2 parts) in tank 1, and the solution is then heated for 1 hour at about 160 DEG  C. in autoclave 4 when guanidine nitrate (27.5 parts) is formed.  The solution is run whilst still hot, through jacketed pressure reducing valve 23 to nozzle 7, where it is sprayed into chamber 8. The bulk of the ammonia immediately flashes into vapour and guanidine nitrate settles as a finely divided solid on the bottom 9 which is heated by steam jacket 16 to a temperature sufficiently high to assist the removal of unvaporized ammonia. Rotary scraper 11 sweeps the guanidine nitrate into trough 10 and then into steam-jacketed outlet pipe 18, from which it is discharged by screw conveyor 20.  The ammonia evaporated in chamber 8 is taken off through pipe 22, condensed in condenser 25 and stored in tank 3. Specification 544,774 is referred to.
Patent GB-438282-A (GB)
Title: Improvements in catamenial pads
IPC: A61F13/15
Filed: 1934-07-11
Abstract: A catamenial pad comprises a filler having an upper or inner absorption portion, and an under or outer non-absorbent portion, both portions being formed of the same material and being equally soft in texture, the non-absorbent portion having been treated with a material containing acetate of alumina and paraffin wax. The non-absorbent portion is preferably dyed to distinguish it from the absorbent portion.  The material may consist of cuttings or waste of silk, rayon, or like textiles which are bleached and stripped, and then separated into two portions, one of them being treated with the proofing composition and dyed.  The two portions are then separately garnetted and carded, and the resultant wadding is compressed. Finally, the fillers for the pads are stamped out and assembled in a covering of cotton gauze.
Patent GB-299825-A (GB)
Title: Improvements in placards, show-cards, window display screens and the like
IPC: G09F1/04
Filed: 1927-08-02
Abstract: 299,825. Chilton, J. E. Aug. 2, 1927. Show cards.-A backing or base for placards, show-cards, display-screens, &c. is formed by pressing together two sheets each consisting of flat paper or cardboard e secured to corrugated paper or coardboard f. The convex parts of the corrugations on one sheet enter the concave parts on the other and the pressure deforms the corrugations in a direction parallel to the sheets so that they interlock.
Patent GB-153972-A (GB)
Title: Improvements in electric switches
IPC: H01H19/10
Filed: 1919-08-18
Abstract: 153,972. Fouchain, A. Aug. 14, 1918, [Convention date]. Addition to 131,285. Switches, quick-action; contacts.-The pivoted part of the switch described in the parent Specification carries, on the faces opposite to the contacts of the lead terminals, conducting or insulating pieces arranged so as to enable a number of circuits to be controlled. The pivoted member 5, when constructed of insulating-material, may have conductors 11, 11<1> passing through it in different planes, co-operating with a single contact spring 4 at one side and with two contact springs 3, 3<1> at the other, forming, in the case of a four-sided member, Figs. 1 and 2, a two-way switch, or, with a six-sided member, Figs. 4 and 5, a twoway switch with an off position. When constructed of conducting-material, Figs. 7 and 9, a four-sided member 5 may have insulating-pieces 18<1> disposed on its four faces so that, in conjunction with three contact springs 3, 3<1>, 3<11>, at one side and one spring 4 at the others, a three-way switch with an off position is formed; the pivots 10 in this form are carried by insulating-pieces 5<1> at the ends of the pivoted member.
Patent GB-1331536-A (GB)
Title: Commutator for a dynamo-electric machine
IPC: H01R39/32
Filed: 1971-04-19
Abstract: 1331536 Making commutators OLIN CORP 19 April 1971 [4 Feb 1970] 20348/71 Heading B3A [Also in Division H2] Commutator segments comprise a base component 14 of iron alloy bonded to a surface component 16 of copper alloyed with at least 10 oz. per ton silver. The iron may be alloyed with C, Cr, Ni or Mr, and the copper alloy may contain O, Zn as impurities. The segments are separated from each other after a plastics bush has been cast within them, and have integral fingers 8 for resistance welding to armature wires 6.
Patent GB-1032709-A (GB)
Title: Improvements in domestic sink unit cabinets
IPC: A47B77/06
Filed: 1964-05-19
Abstract: 1,032,709. Kitchen cabinets. R. STOCKTON. May 3, 1965 [May 19, 1964], No. 20528/64. Headings A4B and A4H. A sink unit cabinet is constructed with two drawers a<SP>1</SP> arranged one above the other under each draining board a, and a receptacle B beneath the sink C closed by a sliding door b. The receptacle extends rearwardly substantially half the width of the sink C in front of the waste pipe. The lower portion of the unit has cupboards a<SP>2</SP> closed by sliding doors a<SP>3</SP>.
Patent GB-879548-A (GB)
Title: Improvements relating to pressure gauges for wells
IPC: E21B47/06
Filed: 1958-06-26
Abstract: 879,548. Pressure gauges. HUGEL, H. June 26, 1958 [June 26, 1957], No. 20591/58. Class 106 (2). A fluid pressure gauge for lowering into oil wells comprises an air or gas filled chamber 23 in which a stylus 9 mounted on a shaft 7 records the axial and angular displacements of the shaft 7 or a cylindrical sheet 10, a second liquid-filled chamber 19 into which the shaft 7 extends through a seal 28, 29 and in which a spring 6 is situated to couple the shaft 7, through a spindle 5, to a motor 3 which rotates the shaft 7 at a constant speed, and a flexible wall or diaphragm 16 to transmit the pressure of the well liquid to the liquid in the chamber 19 to act on the shaft end against the biasing force exerted by the spring, safety valves being provided to effect pressure equalization between the chamber 19 and the oil well. The well liquid enters the gauge through an aperture 12 when it is lowered ,into the well. The lower safety valve consists of a hole 24 below an annular bead 241 which normally stretches and seals the diaphragm except when there is an excess pressure of well liquid. The upper safety valve consists of an axially movable carrier ring 15 which normally seals the diaphragm against the outer wall of the chamber 19 but brings this chamber into communication with a chamber 26 when the diaphragm expands longitudinally due to excess pressure in the chamber 19. The spindle 5 is secured against axial displacement. A compression spring may be used instead of the tension spring 6. A filter-like tube 20 with a connecting bore 21 is provided for washing out impurities. which have entered through the aperture 12. A maximum thermometer may be provided a chamber 11, Fig. 3.
Patent GB-148861-A (GB)
Title: Machine for portioning off doughy or granular material
IPC: A21C5/00
Filed: 1920-07-10
Abstract: 148,861. Blum, P. June 21, 1917, [Convention date]. Moving-chamber apparatus; for granular material.-Comprises a hopper in the mouth of which a cylinder revolves, the shell of the cylinder consisting of fixed sections and cam-operated movable sections pivoted at one end to the fixed sections and forming the bottoms of the measuring chambers, the closure of each chamber being completed in turn by a partition forming part of the hopper. In the form shown in Figs. 1 and 2, one end of the cylinder is rotatably mounted on the shaft while the other end rotates on a boss formed in the hopper frame. The fixed sections 3 connect the ends 2 and are beaded to form together with cavities in the movable sections 4 pivots for the latter. The sections 3 are curved to the track of the ends of the sections 4. The latter have extensions carrying rollers 9, which rest on the coned end of a sleeve 6 adjustable axially by the handwheel 7 and a screw. The cone is cut away to permit axial movement of the sleeve past a fixed cam 8. The cylinder is rotated by any suitable means connected to the right-hand end disk 2. The dough or other material in the hopper forces down the sections 4, filling the pockets. Each pocket is completely closed just before discharge commences by a partition 11 forming part of the hopper. When the rollers 9 ride over the cam 8 the sections 4 are forced out to discharge the material, a scraper 12 assisting if necessary. The depth to which the sections 4 enter the cylinder is regulated by movement of the cone from the wheel 7. In a modification a roller, driven from the cylinder or otherwise, is introduced into the outlet of the hopper. In a further modification, the material is fed to the cylinder by a screw in the outlet of the hopper. In a still further modification, the sections 4 are arranged to move out from the cylinder, the gap between two sections co-operating with a pivoted part of the hopper to form the pocket. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a form in which the cylinder is arranged tangentially to the outlet of the hopper, the feeding of the material from the hopper rotating the cylinder. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1510623-A (GB)
Title: Discontinuous spinning process for spinning blends of dissimilar fibres
IPC: D01H4/32
Filed: 1975-08-08
Abstract: 1510623 Blending fibres; break spinning WM R STEWART & SONS (HACKLEMAKERS) Ltd 8 Aug 1975 [10 May 1974] 20808/74 Headings DID and D1F In a fibre-blending and break or open-end spinning operation wherein the fibres of a preformed sliver of dissimilar fibres are separated at the point of dispersal of the sliver and reassembled into a yarn, the separation is effected by a (flanged) breaker drum having radially projecting needle-pointed e.g. polished, hardened steel, pins disposed over (and individually set in) the peripheral surface of the drum, as distinct from conventional saw-tooth card wire wound thereon.
Patent GB-183363-A (GB)
Title: Improvements in double beat valves
IPC: F16K1/44
Filed: 1921-08-05
Abstract: 183,363. Cockburns, Ltd., Cockburn, D., and MacNicoll, D. Aug. 5, 1921. Seats.-The lower seat of a double-beat valve is supported by a flexible diaphragm so as to render the seat capable of slight movement relatively to the casing. The seat 6 is clamped to the inner edge of an annular diaphragm 1 by a screwed ring 5 locked by studs in a ring 4 bolted to the casing to secure the outer edge of the diaphragm. When grinding in the valve the seat is held against a shoulder 11 by a series of pinching- screws 9. A baffle 13 is used to protect the spindle from the action of the steam. Specification 107,153 is referred to.
Patent GB-210466-A (GB)
Title: Improved method of briquetting fuel
IPC: C10L5/22
Filed: 1922-07-29
Abstract: 210,466. Woodall, Duckham, & Jones (1920), Ltd., and Duckham, Sir A. W. July 29, 1922. Carbonizing processes.-In carbonizing processes in which the coked material leaves the carbonizing chamber suspended in volatile products the hot segregated particles of the mixture are collected and compressed, and where the proportion of condensation is sufficient additional coke dust or the like may be introduced. In briquetting coal the process is so conducted that the particles are coated with the final residue of their volatile constituents which, together with the condensed vapours of heavier pitch oils form the binding agent. Pulverized coal is fed on to the surface of molten lead in a bath a and is caused to pass through the metal in the form of a thin layer on a roller d. Evolved gases escape through a pipe e and carry with them carbonized coal particles which are delivered between briquetting drums g. The briquettes are collected and remain in a chamber i until cool. When the character of the coal is such that the condensate is sufficiently bituminous finely divided coke may be introduced through a pipe n. Specifications 174,974 and 192,572 are referred to.
Patent GB-531339-A (GB)
Title: Machine for electrically heated metal bars and tubes
IPC: H05B3/00
Filed: 1939-07-18
Abstract: 531,339. Heating metals by electricity; couplings. SOC. ANON LOUVROIL MONTBARD AULNOYE. July 18, 1939, Nos. 20887 and 20888. Convention dates, July 27, 1938, and Sept. 6. 1938. [Class 39 (iii)] [Also in Group XXXVI] Metal bars or tubes p heated by passage through them of intense alternating current, which is led to the contact blocks f, g at the end of the bars by conductors formed as sectorshaped elements d forming together one or more hollow concentric cylinders horizontally adjustable on two coaxial opposed electrode supports one of which is fixed while the other is movable axially. Current is led to the machine by two adjacent annular discs 8, 9 insulated from each other, the disc 9 being connected by a flexible conductor 11 formed from copper foils with the cylinder d forming an electrode E' pressed against the bar p hydraulically or by a spring through a contact g which is water cooled at 7, and has a heat screen 6. Current is conducted from the disc 8 through a circle of brushes 12 pressed hydraulically or by spring on a metal cylinder 13, whence current passes through a similar ring of brushes 14 pressed on the cylinder by a spring 15 to a disc c and cylinder d to the contact g and so through the bar. The brushes are water-cooled and may be lifted by a cam on or off the cylinder. Flexible laminar copper connections 11 are introduced where shown. The electrodes are pressed through their heads T1, T2 against the end of the bar, and one electrode and the cylinder 13 slide and are horizontally adjustable on slides 23 on the bed of the machine. The brushes may press on the ends or inner surface of the cylinder 13 which is internally lined with refractory material 13b and cooled by metal pipes 27a. The cylinder normally moves with the electrode E2 and has slots 25 for water-cooled fingers 24 which move vertically and support the bar p until held by the electrodes, when it is heated to the desired temperature adjusted by a photo-electric cell. The bar is removed on sideways displacement of the cylinder, which may have a slot along its length for the fingers 24. This slot may be wide enough to allow the bar p to pass up or down therethrough and may be closed during heating by a cap from which the bar may hang. The cylinder may be hinged along its length and open to allow removal of the bar from the fingers, or be in two halves sliding laterally. The cylinder may be vertical and be lifted off the bar, which may be withdrawn downwards, being held by a fork on the lower electrode. The brushes may be replaced by flexible conductors welded thereto when the relative movement of the cylinder and the current supply members is small or nil. The cylinder may be telescopic with several rings of brushes, at least one such ring being rigid with one part of the cylinder. The brushes may however press on the electrodes.
Patent GB-747607-A (GB)
Title: Improvements in or relating to epoxy resins
Inventor: HAMPTON HORACE ARTHUR
IPC: C08G18/40
Filed: 1952-08-20
Abstract: A resinous composition, useful for preparing a coating composition, comprises an epoxy resin, an alkyd resin and an organic polyisocyanate or reaction product thereof which liberates polyisocyanate on heating.  There may also be incorporated solvents, e.g. cresylic acid, cyclohexanone, methyl isobutyl ketone, methyl ethyl ketone or ethyl acetate; diluents, e.g. benzene or xylene; pigments, e.g. titanium dioxide, lithopone, iron oxides or carbon black; or extenders, e.g. china clay or barytes.  The addition of 0.2-4 per cent of a polymeric aliphatic ester of an alpha beta unsaturated carboxylic acid on the amount of the epoxy resin and alkyd resin gives improved films. Specified polyisocyanate reaction products are those with bisulphites, acetoacetic esters and that disclosed in example 5. In examples, coating compositions comprise (1) and (4) an epoxy resin from bis-(4-hydroxyphenyl)-2 : 2-propane and epichlorhydrin, cyclohexanone, a mixed polyester from adipic acid and ethylene glycol and glycerol, m-toluylene di-isocyanate, methyl ethyl ketone and if desired polybutyl fumarate and a urea-formaldehyde resin.  (2) As in example 1 but using diphenylmethane diisocyanate and a mixed polyester from adipic acid, 1 : 3-butylene-glycol and trimethylol propane.  (3) As in example 1 but using an epoxy resin with hydroxy end groups derived from bis - (4 - hydroxyphenyl) - 2 : 2 - propane, epichlorhydrin and ethylene chlorhydrin.  (5) The epoxy resin of example 1, cyclohexanone, methyl isobutyl ketone, the polyester of example 1, a m-toluylenediisocyanate condensation product and, if desired, a urea-formaldehyde resin; the condensation product is obtained by heating a mixture of m-toluylene diisocyanate, glycerol and diethylene glycol in ethyl acetate, heating the product with phenol and allowing the ethyl acetate to distil off.  (6) "Epikote" (Registered Trade Mark) 1007, cresylic acid, xylol, the mixed polyester of example 1 and the m-toluylene diisocyanate condensation product of example 5.  (7) As in example 1 but using a mixed polyester from adipic acid, 1 : 3-butylene glycol and trimethylol propane.  (8) The epoxy resin of example 1, cyclohexanone, methyl isobutyl ketone, the mixed polyester of example 1, p : p1-diphenylmethane diisocyanate and methyl ethyl ketone.
Patent GB-276326-A (GB)
Title: Improvements in or relating to means for varying the timing of the sleeve valves of internal combustion engines
IPC: F01L5/08
Filed: 1927-08-08
Abstract: 276,326. Haltenberger, Inc., J., (Assignees of Haltenberger, J.). Aug. 19, 1926. [Convention date). Regulating; valves; valve gear.-In sleeve,- valve engines, the times of exhaust opening and inlet closing are varied by means of a ring axially adjustable over the valve ports, and this adjustment may be effected simultaneously with operation of the throttle valve. Fig. 1 shows an engine having two sleeve valves 17, 18 controlling inlet at 15 and exhaust at 16, the timing of which is varied by a ring 35, which is adjusted by pins 42, 52 mounted ecccentrically in rock shafts 43, 53 which are turned simultaneously by arms 44, 54 connected by links 45, 55 to arms 61, 62, Fig. 6, on a shaft 60. The inner valve 17 receives only axial reciprocation from a rod 29 and crank 27, but the outer valve 18 is given a combined oscillating and reciprocating movement by a wobble crank 28 and a rod 30 connected to the valve by a ball joint 32. A packing-ring 38 may be fitted around the timing-ring 35. In another form, a single sleeve valve having combined movement is fitted at the upper end with a similar timing-ring. Means for controlling the timing from the throttle pedal is shown in Fig. 6, the pedal 72 being fitted with a spring 73 which allows movement of the pedal after the throttle valve 70 has been fully opened, this additional movement closing a valve 74 in a bye-pass 75 of an oil pump 78, whereupon the oil pressure actuates the shaft 60 through a piston 77. Specification 264,132 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also a, modification in which the regulation of timing is obtained by axial adjustment of the inner valve 17, this being effected by an eccentric mounting of the pivot 93 of a valve lever comprising telescoping parts 90, 91 connected by a rod 29<a> to the valve crank and by a pivot 31<a> to the valve. In this form, both valves receive only axial reciprocation, but in another modification, the adjustable valve 17 receives a combined movement from a wobble crank, the lever 90 having ball connections both to the rod 29<a> and to the valve. The outer valve also receives a combined movement in the manner shown in Fig. 1. This subject-matter does not appear in the Specification as accepted.