baber/WOPTO huggingface dataset:
Patent GB-1009114-A (GB)
Title: Improvements in or relating to the production of sodium hydroxide
IPC: C01D1/04
Filed: 1962-07-13
Abstract: Caustic soda is produced by forming an alloy of molten lead and sodium, evaporating a portion of the sodium therefrom and hydrolysing the vapour with steam.  The alloy, which may contain 10-50% by weight of sodium, may be formed by electrolysing fused sodium chloride with a molten lead cathode. The sodium content of the alloy depends on the cell current.  The alloy leaves the cell at 850  DEG C. Specification 1,007,778 is referred to.ALSO:<PICT:1009114/C1/1> Caustic soda is produced by forming an alloy of molten lead and sodium, evaporating a portion of the sodium therefrom, and hydrolysing the vapour when hydrogen is also formed.  The alloy, containing 10-50% by weight of sodium may be formed by, either mixing molten lead with sodium or electrolying fused sodium chloride with a molten lead cathode.  25-50% of the sodium is evaporated by heat and/or evacuation, and the remaining alloy is recharged with sodium and recycled to the evaporator.  The sodium vapour is passed through a baffled chamber or cyclone to remove entrained lead particles before hydrolysis.  The sodium vapour enters at 890 DEG  C. chamber 35 which is surrounded by a water cooling jacket 38.  Pure steam at 5 lb. gauge pressure enters through a jet injector drawing the sodium vapour with it.  The castic soda is collected at the outlet 45 and hydrogen exhaust gases are passed round baffle 42, through outlet 36 and thence through water in order to dissolve entrained caustic soda. Specification 1,007,778 is referred to.
Patent GB-282318-A (GB)
Title: An improvement in or relating to stop valves
IPC: F16K3/16
Filed: 1927-10-13
Abstract: 282,318. Blakeborough, R. A., and Mosby, S. W. Oct. 13, 1927. Closure members, sluice.-In a parallel slide sluice or stop valve of the type in which a pair of valve discs c, d are pressed apart against seating surfaces b, b<1> by a spring or springs e, the discs are held together at their upper edges so that the distance A therebetween is slightly less than the distance B between the seating surfaces in order that the interior a' of the valve housing may remain in communication with the inlet passage. The retaining means comprises a plate or member h with downturned edges h<1> and connected to the operating spindle f by a bolt i. The spindle opening h<2>, bolt opening h<3> and the connection g between the spindle and discs are provided with clearance to allow a floating movement so that in either direction of flow the pressure thereof may cause the corresponding valve disc to seat squarely on the outlet face. The lower edges of the discs remain in contact with the seat faces to exert a scraping action.
Patent GB-463729-A (GB)
Title: Improvements in and relating to waterproof concrete and the like roofs
IPC: E04B7/00
Filed: 1935-10-02
Abstract: 463,729. Roofs. ASHWORTH, B. Oct. 2, 1935, No. 27145. [Class 20 (iv)] A reinforced - concrete roof, which extends from wall to wall or between main beams, is laid in pre-cast beam-like sections disposed side by side, or is cast in situ, upon a waterproof layer 4 previously laid upon boarding or sheeting 3 carried by light joists 2, the reinforced-concrete part of the roof being constructed so as to be self-supporting and to transmit to the supporting walls its own weight, and the prescribed load it has to carry, independently of the joists 2. The boarding 3 may be of wood, plaster or asbestos. The waterproof layer may comprise asphalt which is poured over a layer of paper provided on the boarding 3, and when the asphalt is set a coating of bitumen is applied and covered with asbestos sheets. Alternatively, the waterproof means may comprise a plurality of layers each formed of a number of overlapping bitumen sheets having the lapped joints painted with bitumen ; each layer is covered entirely with bitumen, and the lapped joints of successive layers of sheeting are staggered. The complete layer is coated with bitumen which is either sanded or covered with asbestos sheets. In another modification, the waterproof means comprises several layers, one or more of which may be composed of leadcored bitumen sheeting. The waterproof layer 4 may be adapted to extend over the tops of the walls and be formed with gutters 7. When the roof is cast in situ, the joists serve to support the weight thereof until the concrete sets and becomes self-supporting. The joists may be adapted to support a plaster ceiling 6, and the air spaces 8 between the concrete 5 and plaster 6 may be ventilated by air bricks 9 in the walls. The joists may be of wood or steel, and in the latter case are encased in asbestos sheets or a protective covering laid on whilst plastic. The joists may be temporarily reinforced by cross-bearers and struts. The beamlike sections employed to form the roof may be of H or L-shape in cross-section end be grouted together to form a monolithic structure.
Patent GB-1009358-A (GB)
Title: Improvements in and relating to electrical plug and socket connectors
Inventor: FOUNTAIN LESLIE ARTHUR
IPC: H01R13/15
Filed: 1962-07-16
Abstract: 1,009,358. Two - part couplings. McMURDO INSTRUMENT CO Ltd. July 16, 1963 [July 16, 1962], No. 27196/62. Heading H2E. A socket contact comprises a metal body 10 surrounded by a spring clip 18 with a dimpled tongue 20 projecting through a slot in body 10 into bore 11 to engage a co-operating pin 12, the clip 18 being free to move an appreciable distance axially but being retained by means of a body flange 14 and a slotdefining shoulder 16 which stops the forward end of tongue 20. The body 10 is formed with a groove 15 and the flange 14 for mounting in a support, and with a rear recess 25 into which a conductor may be soldered.
Patent GB-369529-A (GB)
Title: Process and apparatus for the production of alkali azides
IPC: C01B21/08
Filed: 1931-09-30
Abstract: In the production of alkali azides, for instance sodium azide, the alkali amide produced in a tank A passes by an overflow pipe 4 to a jacketed ball mill B in which reaction is effected with nitrous oxide supplied at 8 in a stepped grinding drum 11.  Molten sodium and ammonia are respectively supplied continuously by a pipe 1 and distributers 2a to a melt consisting chiefly of sodium amide in the tank A, and the amide flowing continuously to <PICT:0369529/III/1> the mill B passes into a mixture chiefly composed of sodium azide and sodium hydroxide.  The mixture in the drum 11 passes gradually by sieves 11a, 11a1 to a valved outlet 9.
Patent GB-759982-A (GB)
Title: Improved dispenser for liquids
Inventor: RUTISHAUSER LESLIE FREDERICK
IPC: B67D7/60
Filed: 1954-09-21
Abstract: 759,982. Reciprocating pumps. ESSO RESEARCH & ENGINEERING CO. May 13, 1955 [Sept. 21, 1954], No. 27278/54. Class 102(1). A pump having an adjustable stroke limiting stop 20 delivers to a nozzle having a non-return valve 10 and a plurality of outlets 8. A flow gauge may be incorporated in the delivery line.
Patent GB-1000622-A (GB)
Title: Improvements in and relating to ball joint assemblies
Inventor: TOWNSEND ALBERT WILLIAM
IPC: F16C11/06
Filed: 1963-07-10
Abstract: 1,000,622. Flexible seals. AUTOMOTIVE PRODUCTS CO. Ltd. July 10, 1964 [July 10, 1963], No. 27356/63. Heading E2F. [Also in Division F2] A flexible sealing boot 10 for a ball joint is secured to the socket 1 by means of a garter clip 13 and engages at its other end a channel section groove 16 of a ring 15, having close tolerance fit with the shank 6 of the ball pin, the ring being made of synthetic plastic, preferably having self-lubricating properties and having a radial passage or passages 17 to permit air to enter or pass from the boot.
Patent GB-1014206-A (GB)
Title: Methods of extruding hollow articles made of beryllium
IPC: B21C23/08
Filed: 1964-07-02
Abstract: 1,014,206. Extruding; working at specified temperatures. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. July 2, 1964 [July 3, 1963], No. 27396/64. Headings B3P and B3V. In the extrusion of beryllium 12 the latter is provided with an external sheath 11 of soft steel electroplated with copper and an internal sheath 13 or a solid core. The internal sheath may be electroplated internally with copper. External sheath 11 has an end cap 11<SP>1</SP>. The beryllium workpiece 12 is machined from a bar drawn from a cast ingot or sintered billet, or it may be machined directly from a sintered billet. Composite billet 10 is heated in an argon atmosphere to 850-1000‹ C., placed over a slightly heated and lubricated mandrel in the container of an extrusion press heated to 450‹ C., and extruded into a tube. The sheaths and plating are later dissolved in a bath of nitric acid. In another embodiment, Fig. 2 (not shown), the composite billet has a solid core of cupro-nickel or manganese steel which is later removed by pulling. The final beryllium tube may have internal and external fins.
Patent GB-933843-A (GB)
Title: Columbium containing steels
IPC: C21D8/00
Filed: 1961-07-28
Abstract: The physical proportion of steels containing from 0.005 to 0.050% columbium, 0.02 to 0.60% carbon, 0.005 to 0.5% silicon, and 0.15 to 1.6% manganese are improved by the process of heating such a steel to 2300 DEG  to 2450 DEG  F., rolling it, and rapidly cooling it by water spray from the range 1550 DEG  to 1750 DEG  F. to the range 1050 DEG  to 1200 DEG  F.  The process is particularly suited to milled, semi-milled, and rimmed steels.  The improvement in yield strength of such a steel after the addition of columbium is shown by an example in which the yield strength of a steel, including 0.36% C, 1.55% Mn and 0.22% Si was raised from 69700 lb./in.2 to 85300 lb./in.2, by the addition of 0.036% Cb.
Patent GB-502190-A (GB)
Title: Improvements in or relating to switches for repeatedly opening alternating current circuits
IPC: B23K11/24
Filed: 1937-10-09
Abstract: 502,190. Valve relays. IGRANIC ELECTRIC CO., Ltd. Oct. 9, 1937, No. 27497. Convention date, Oct. 9, 1936. [Class 40 (v)] [Also in Group XXXVII] Describes an arrangement for timing the duration of a weld, substantially as described in Specification 504,020, by means of a bridging-contact 1b adapted to close the transformer primary circuit 2a when a winding 1a is energized. In the position of a pilot switch 3 shown, a variable condenser 5 is charged over a rectifier 4, and when 3 is moved to engage contact 3c, a circuit for discharging the condenser 5 through winding 1a and gas-tube 7 is established. The secondary 11b of an induction-regulator is connected to a discharge-tube 12 so as to cause the latter to break down at a given point in the A.C. cycle, whereby a potential is impressed on the grid 7c of the valve 7, which thus permits 'the discharge of condenser 5. The duration of closure of 1b depends on the circuit-constants and is adjustable by means of the condenser.
Patent GB-948589-A (GB)
Title: Triamino triazoles and a process for the production thereof
IPC: C07D249/08
Filed: 1962-07-18
Abstract: Triamino triazoles of the general formula: <FORM:0948589/C2/1> wherein R represents the group CxH2x or <FORM:0948589/C2/2> x being an integer from 3 to 7, are prepared by reacting hydrazine with a lactam at 150 DEG  to 250 DEG C. in a closed vessel and in the presence of a gas which is inert to the reactants and product under the reaction conditions. Lactams which may be used include pyrrolidone, piperidone, caprolactam, enantholactam, capryl lactam, C-methyl-caprolactam, C-ethyl-caprolactam, hexahydro -paminobenzoic acid lactam. The compounds may be used for the production of dyestuffs and medicines.
Patent GB-228967-A (GB)
Title: Re-inforced basket, skip or hamper
IPC: B65D6/08
Filed: 1924-07-25
Abstract: 228,967. Rochester, S., and Ball, W. H. July 25, 1924. Baskets; hampers.-Baskets, skips, or hampers are protected and strengthened by angle-shaped bars B held in place at the ends of the bottom by metal strips A doubled around them and worked into the cane or willow of the bottom. The strips may extend the entire length of the bottom.
Patent GB-1428443-A (GB)
Title: Press for the hydrostaitc extrusion of tubes
IPC: B21C23/00
Filed: 1973-06-11
Abstract: 1428443 Extruding ALLMANNA SVENSKA ELEKTRISKA AB 11 June 1973 [12 June 1972] 27671/73 Heading B3P A hydrostatic tube extrusion press 1 with an axially movable high-pressure cylinder 5 and a pressure generating punch 10 has a rod 14a, 14b passing through the punch and acting as a mandrel and seals 25, 32 between the mandrel, punch and cylinder, Fig. 4, are arranged to be in approximately the same radial plane during extrusion. The rod is attached to a piston 15 of a pressure cylinder 16 which moves the rod through a pierced billet 22 to hold the billet and extrusion die 21 against a crosshead 2. The cylinder 5 is then moved over the billet, Fig. 3 (not shown), and pressure chamber 40, Fig. 4, is pressurized by the punch 10 mounted on a piston-cylinder unit 6, 8.
Patent GB-158682-A (GB)
Title: Improvements in adjustable spanners and wrenches
IPC: B25B13/38
Filed: 1919-11-10
Abstract: 158,682. Mitchell, F. B. Nov. 10, 1919. Pivoted-jaw wrenches.-An adjustable wrench comprises two members pivoted together at one end and formed with jaws at the other end, adjustable by a wedge, cam, or screw. As shown in Fig. 1, the jaw member A is folded or double, having the two parts connected at A<4> and the jaw member B works within it, pivoted at T. A spring B' on the part B engaging a cross-pin A<2> tends to open the jaws, and a wedge P movable between the part A<4> and the edge of the member B adjusts the jaws as required. The wedge is moved by a projecting finger-piece P<5>. In the modification shown in Fig. 9, a spring B<2> on the part B engaging a pin A<2> tends to open the jaws, which are moved by a wedge P having a projecting screw P<1> and lock-nut P<2>. A screwdriver B* may be formed on the part B. A double reversible wedge member P, R, Fig. 18, may be used for a greater range of adjustment. Two pivot holes T may be provided, the pivot screw being movable from one to the other for increasing the range of adjustment with the jaws approximately parallel. Fig. 20 shows a modification in which the jaw members A<6>, B<6> are moved against the pressure of the spring B<7> by a cam S pivoted in the member A<6> and bearing against the edge of the member B<6>. A set-screw bearing on the edge of the member B or B<6> may be used in place of the wedge P or cam S. For increasing the range of adjustment the set-screw or the cam S may be used together with a wedge P; or a double wedge may be provided.
Patent GB-338265-A (GB)
Title: Improvements in rotary drums for drying purposes
IPC: F26B11/04
Filed: 1929-09-12
Abstract: 338,265. Deutsche Babcock & Wilcox Dampfkessel-Werke Akt.-Ges., and Kramlowski, A. W. Sept. 12, 1929. Rotary drums.-A rotary drum is fitted with ledges d having lifting plates e at right angles and lifting bars c oppositely directed on either side of each ledge. The arrangement ensures a free trickling movement of the material during drying and intimate contact with the drying gases.
Patent GB-496834-A (GB)
Title: Improvements in and connected with cooking apparatus
IPC: F24C15/02
Filed: 1937-06-01
Abstract: 496,834. Doors for ovens &c. ROGERS, R. H. June 1, 1937, No. 27831. Divided application. [Class 126] A door for an oven or other chamber of cooking apparatus comprises inner and outer parts 10, 11, connected together at their edges by a heat-insulating joint in which an edge portion 14 of one part 10 is engaged by a heat-insulating packing 13 of U-section, and a trough-shaped portion 12 along the edge of the other part 11 embraces the packing 13 on opposite sides of the edge portion 14. The troughshaped portion is omitted along the bottom edge 15 of the part 10, so that the edge portion 14 can be slid into position. A separate insulating piece 16, Fig. 2, is held in place on the bottom of the door by a metal member 17, or the material of U-section may be continued around the bottom and be held in place by a member 19, Fig. 4. Specifications 476,677 and 496,833 are referred to.
Patent GB-749000-A (GB)
Title: Improvements in variable reactance reactors
IPC: H01F29/10
Filed: 1952-11-06
Abstract: 749,000. Inductors. HINKSMAN, E. A. Feb. 8, 1954 [Nov, 6, 1952], No. 27940/52. Class 38 (2). A multiphase variable reactor comprises three windings 14, 15, 16 wound on the centre limb 4 of a magnetic core 5, a movable magnetic shunt 10, 10 being provided between the windings to vary the impedance thereof and thus to control the current flowing from an alternating current source 9 to a device 8. With no shunts inserted between the windings the vector sum of the fluxes produced by the windings is zero, thus the impedance of the reactor is a minimum. When the shunts 10 are introduced between the windings self-cancellation of the fluxes no longer occurs and the impedance of the reactor is a maximum. Two windings per phase may be used if desired, one of which may be shortcircuited. The Provisional Specification describes a multiphase reactor having two windings only, which are connected in open delta.
Patent GB-817058-A (GB)
Title: Amplitude selective translation circuit
IPC: G01S13/95
Filed: 1956-09-12
Abstract: 817,058. Non-linear valve circuits; pulse radar. BENDIX AVIATION CORPORATION. Sept. 12, 1956 [Sept. 16, 1955], No. 27943/56. Classes 40 (6) and 40 (7). In an amplitude selective circuit the input is simultaneously applied through parallel paths of differing attenuation to the grids of a cathodecoupled pair of valves, one valve being biased to or below cut off and the output is derived from the anode circuit of the other. As shown, positive-going signals from the anode of the video amplifier 30 are fed to the grid of valve 10 and via potential divider 22, 23 to the grid of valve 11. Valve 10 is biased to or beyond cut off by the voltage from the potential divider 31, 32, 33 but valve 11 is normally conducting. Smallamplitude signals are inverted by valve 11 and appear as negative pulses at point 25. Signals large enough to overcome the bias on valve 10 are passed via cathode coupling to valve 11 where they oppose signals on the grid. Since the rate of increase of signal at the cathode is greater than that of the attenuated signal at the grid, a further increase in amplitude will result in point 25 being driven more positve as in Fig. 2. The signals at the grids of valves 10, 11 are D.C, restored by the diodes 35, 37 respectively, diode 35 clamping the grid to a negative potential which may be varied by the control 32 to adjust the position of the inflexion level A. Pulse radar.-The invention may be used to provide cloud contours on the plan position indicator of a weather radar system.
Patent GB-700759-A (GB)
Title: Improved means for storing or displaying bottles or jars
IPC: A47F7/28
Filed: 1950-11-15
Abstract: 700,759. Bottle racks. WATKINSON, G. S. Nov. 15, 1951 [Nov. 15, 1950; Feb. 28, 1951], Nos. 27945/50 and 4876/51. Class 52(3) A rack for storing bottles of similar cylindrical or other cross-section comprises a compartment having vertical end walls and a bottlesupporting basal wall inclined downwardly from the front towards a rear wall, means being provided inside the compartment to locate the bottles of adjacent rows so that the bottles of one row nest in the space between bottles of each adjacent row. As shown, a battery of compartments, which may be fixed or movable units, comprises vertical walls 10, intermediate partitions 11, an inclined basal wall 13 and a sloping rear wall 14. Each compartment is of a width to accommodate a predetermined number of bottles 15, in a side-by-side row, and leave a space occupied by a distance piece 16 secured to an end wall and equivalent to half the cross-sectional dimension of the body of a bottle. A distance piece may be provided for only the bottom row or for each row in which case the distance pieces for adjacent rows are secured on opposite sides of the compartment. Cooling pipes may be provided beneath the basal wall 13 and shelves may be supported by upward extensions of the end walls. If desired horizontal, vertical or diagonal rows of bottles may be separated from each other by ridged partitions 20 partly encircling the body of each bottle and secured to the appropriate walls or partitions by eye-lugs 21 and screws 22. The ridges may be thickened to allow attachment by screws to the rear wall of the compartment.
Patent GB-1439807-A (GB)
Title: Control of multilayer sheet production such as in the manufac ture of pneumatic tyres
IPC: B29D30/00
Filed: 1973-06-12
Abstract: 1439807 Automatic control of coating process INDUSTRIAL NUCLEONICS CORP 12 June 1973 [12 June 1972(3)] 27980/73 Heading G3R A multi-layer web, such as tyre material, is produced by applying first and second layers on to opposite sides of a substrate. The thickness of the first layer is controlled in response to measurement of the first layer before its application, and the thickness of the second layer is controlled in response to measurements of the first layer and of the thickness of the formed web. As shown in Fig. 1, a four-roll tyre calender applies top and bottom layers 8, 9 of rubber derived from banks 6, 7 on to a web of tyre cord 5 to produce a composite sheet 10. A single point radiation backscatter gauge 12 measures the thickness of the bottom layer 9, compares it with a target value in a comparator 42, and an error signal e BOT is fed to a bottom layer thickness controller 38 which adjusts the position of calender roll 4 in relation to the adjacent roll 3. The thickness of the composite web 10 is measured by a transverse scanning radiation transmission gauge 13 connected to a comparator 50 which also receives a total thickness target value and forms an error signal e TOTAL. The error signals are combined in a difference circuit 30 to form a third error signal eTOP which is used to control the position of calender roll 1, and thereby regulate the thickness of the top layer and the composite web 10. In a modification, Fig. 2 (not shown), the actual thickness measurements from gauges 12, 13 are combined and the result compared with a target value for the thickness of the top layer 8 and cord layer 5 to produce the control signal for the calendar roll 1. In order to ensure that the guages operate on corresponding portions of the web, a speed measuring device may be associated with calender roll 3 enabling a computer to provide a delay between the gauge output signals, which are to be combined, Figs. 3, 4 (not shown). The system may also be adapted for controlling the transverse profiles of the composite web and the bottom layer, Figs. 6A, 6B (not shown). In this case, at least two single point gauges are associated with the roll 3 and average thickness values are. calculated for different zones across the web. Integration and curve-fitting techniques are employed, and profile adjustments are effected by roll-bending.
Patent GB-713300-A (GB)
Title: Improvements in or relating to the manufacture of steel
Inventor: KOSMIDER HANS
IPC: C21C5/34
Filed: 1952-11-06
Abstract: The oxygen content of the oxygen-containing gas in the process for the manufacture of steel described in Specification 713,246 is above 94 per cent. and is mixed with steam in a ratio between 0.5 to 1 and 6 to 1 to produce steel having a nitrogen content between 0.002 and 0.01 per cent.