baber/WOPTO huggingface dataset:
Patent GB-530408-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/30
Filed: 1939-06-22
Abstract: 530,408. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 22, 1939, No. 18253. Convention date, July 30, 1938. [Classes 39 (i), 40 (iii) and 40 (v)] Electron multipliers comprise a cathode, a pair of collector electrodes and one or more multiplying electrodes, and means for transferring energy from one of the collecting electrodes to a multiplying electrode so as to control the multiplication in the electron path to the other collecting electrode. As shown, a photo-electric cathode C is made large enough to be separately impinged by a modulated light beam, e.g. passing through a film F, and an unmodulated light beam from the same source L, and projected respectively directly by a lens M and indirectly by a mirror P and lens N. The two beams produce two discrete streams of photo-electrons which are multiplied by secondary emitting electrodes 1 ... 9 and issue as separate streams on two separate output electrodes B, B<SP>1</SP>. The means for applying potentials to the various electrodes consists of a potential divider comprising resistances R, R<SP>1</SP> in parallel with resistances r<SP>1</SP>, r<SP>2</SP>, r<SP>3</SP>, the successive potentials being 2, 3, 4, &c. times the potential between the cathode and the first secondary emitting electrode 1, and the two output electrodes B, Bl being at the same potential. The electrode B<SP>1</SP>, and one of the intermediate electrodes, e.g. 6 receive their potential from the divider comprising the resistances r<SP>1</SP>, r<SP>2</SP>, r<SP>s</SP>, so that variations in the output current to B<SP>1</SP> are fed back to this intermediate electrode and compensate :for variations in the energy supplied to the light source, thus stabilizing the output current from B which flows through the impedance Z and meter M<SP>1</SP>.
Patent GB-596058-A (GB)
Title: A new aluminium base alloy
IPC: C22C21/10
Filed: 1945-07-17
Abstract: An aluminium base alloy has the following composition: Zn 3.50-6.50 per cent, Mg 1.50-4.50 per cent, Si 0.01-1.00 per cent, Fe 0.01-0.60 per cent, Mn 0.21-4.00 per cent, Ni 1.50-5.00 per cent, Al the remainder.  The Ni and Mn contents together should be greater than 2.00 per cent and the Ni content always exceeds 2.00 per cent unless the Zn content is below 6.00 per cent.  The alloy may contain Cu not exceeding 0.20 per cent, one or more of the elements Ti, B, V, Zr and Ce not exceeding 0.70 per cent in total, one or more of the elements Sb, Sn and Ca not exceeding 1.75 per cent in total and not exceeding 1.5 per cent individually, one or more of the elements Be, Co, Cr, W, Mo, Ag, Li, Ta, Te, Tl, Th not exceeding 1.5 per cent in total and not exceeding 0.75 per cent individually, and/or one or more of the elements Pb, Bi, Cd, As, P, Na and Ba not exceeding 1.00 per cent in total, Pb being absent when Si and Fe are each present in amounts of 0.40 per cent and over.  The alloy may be used in the sand cast, die cast or worked condition and may be subjected to solution treatment, for example at 500 DEG  C.-540 DEG  C. for about 1/2 -24 hours followed by quenching and by natural ageing or artificial ageing, for example at 100 DEG  C.-150 DEG  C. for 3-24 hours afterwards cooling in air.
Patent GB-739573-A (GB)
Title: Improvements in or relating to the manufacture of strengthened or reinforced glass
IPC: C03B13/12
Filed: 1954-06-22
Abstract: 739,573. Glass manufacture. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY & CIREY. June 22, 1954 [June 22, 1953], No. 18327/54. Drawings to Specification. Class 56. In the manufacture of glass sheet containing a metal reinforcement, the reinforcement is introduced into the plastic glass in an inert or reducing atmosphere to stop oxidation of the metal.
Patent GB-687790-A (GB)
Title: Improvements in or relating to fireworks
Inventor: FUTO ANDREW BANDI
IPC: C06C15/00
Filed: 1950-07-21
Abstract: 687,790. Pyrotechnic devices and compositions. UNITED CHEMICALS (LONDON)., Ltd. July 23, 1951 [July 21, 1950], No 18336/50. Class 9('ii) A firework of the sparkler type is provided comprising an elongated core having a coating of pyrotechnic material containing metallic powder and having a friction ignition head which can be ignited by rubbing on a suitable surface to initiate combustion of the coating. The core may be non-inflammable, e.g. metallic wire or inflammable, e.g. wood or cardboard. In one construction wooden cores of the same length and thickness as an ordinary matchstick are used. These cores are coated for part of their length and may be packed ina box which has a friction surface on one side. Alternatively the sparklers may be packed in the form of book matches. The coating compositions may be varied to produce different colours, the metallic powder being aluminium powder or iron filings. The various ingredients of the coating are mixed into a paste in which the core is dipped. After the coating has hardened, the tip of the sparkler is dipped in an ignition composition which may contain potassium chlorate, sodium dichromate, sand and dextrin.
Patent GB-199949-A (GB)
Title: Improvements in and relating to spinning rings
IPC: D01H7/60
Filed: 1922-07-04
Abstract: 199,949. Imrie, H., (Forbes, S.) July 4, 1922. Spindle apparatus.-Relates to ring-spinning apparatus of the kind comprising a base member, an upper member, and a lining of self-lubricating material therebetween, and provided with a recess to accommodate an annular traveller. The lower edge of the upper member 2 is provided with outwardly-bent portions 16, Fig. 3, arranged alternately with inwardly-bent portions 15, so that it may be snapped over an annular bead 11 on the base member and may be released therefrom by inserting a tool under a portion 16. The lining is provided with an overhanging flange 13, and the circumferential surface is scalloped as shown at 19, Fig. 3, to reduce friction when the traveller is drawn thereagainst. Rests or seats 17 with upturned ends 18 for the traveller are formed on a flange 12 on the base member, or, as shown in Fig. 8, the intervening portions 17 may be cut away. A finger 23 struck up from the upper member serves to deflect a broken end and to prevent it from lashing the eye of the traveller.
Patent GB-1049781-A (GB)
Title: Improvements in or relating to knitted fabrics
Inventor: KENT ALFRED WOODWARD
IPC: D04B1/06
Filed: 1962-05-14
Abstract: 1,049,781. Knitting machines: fabrics. BENTLEY ENGINEERING CO. Ltd. May 14,1963 [May 14,1962; Sept. 12, 1962], Nos. 18396/62 and 34876/62. Headings D1C and D1K. A non-ladder fabric is knitted on a circular knitting machine and comprises a four course sequence or six course sequence in which a plain course is knitted on all needles and is followed by a course in which tuck loops are produced on certain needles and ordinary loops are knitted on other needles. This in turn is followed by a course in which all needles knit and then by a course in which the other needles produce tuck loods. This produces a staggered pattern as shown in Fig. 2. The number of needles from which the number of needles on which such looms are formed is chosen (e.g. one from three) is such that the total (e.g.three) shall not be divisible into the number on needles in the cylinder so avoiding the formation of a "step" at the end of each course. The cam system in Fig. 8 (not shown) selects alternate needles at 10 to tucking height at which the yarn is fed by a feeder 2 below the level of the latches. The selection mechanism is not described.
Patent GB-613376-A (GB)
Title: Improvements in or relating to concentrating iron ore
IPC: B03D1/004
Filed: 1946-06-19
Abstract: In a process for the concentration of iron ore by the removal of barytes in a flotation process using oleic acid as collecting agent and an aqueous solution of an alkyl sulphate of an aliphatic organic group containing between 10 and 16 carbon atoms, or the sodium salt thereof, in order to assist in making the barytes water-repellant heavy fuel oil is added to the ore.  A suitable sodium alkyl sulphate is "Lorol" (R.T.M.), stated to be substantially sodium lauryl sulphate, while the alkyl sulphate and heavy fuel oil may be added to the charge in the flotation cell either separately or mixed. Ordinary froth flotation methods may be employed for ore particles below 52 mesh, and a tabling process, preferably that described in Specification 613,375 for larger particles and agglomerates.  As an example of the former, to a charge of 600 gm. of ore in about 2.4 litres of tap water the pH being 9.5 and 0.4 gm. of dextrine having been added to disperse the fine iron oxide particles, a mixture comprising 0.25 gm. of heavy fuel oil shaken up in 10 ml. of a 1 per cent aqueous solution of "Lorol" is added and the charge agitated or conditioned for several minutes; 0.15 gm. of oleic acid is then added and the charge conditioned again.  On blowing air through the cell, barytes is carried to the surface in the froth.
Patent GB-220307-A (GB)
Title: Internal combustion turbine
IPC: F02C5/12
Filed: 1924-08-05
Abstract: 220,307. Leich, C. F. Aug. 6, 1923, [Convention date]. Working-fluid supply.-An internal-combustion turbine comprises a ring of explosion chambers 6 discharging through nozzles 8 on to a blade wheel 1 and supplied first with air and then with a mixture of fuel and air, the supply and also the interconnection of consecutive explosion chambers being controlled by a disc 3 rotating with the wheel 1. The disc 3 has slots 18, 19, 20. The slot 18 establishes communication between the air supply passages 10, 13 and the passages 17, 16 leading to the chambers 6. The slot 19 then admits the fuel mixture from the passages 11, 14, and finally the slot 20 transfers hot exploded gases from one chamber to the next, effecting ignition therein.
Patent GB-204782-A (GB)
Title: A novel or improved device or apparatus for use when setting or examining the contact points of magnetos and like machines
IPC: F02P7/063
Filed: 1922-07-07
Abstract: 204,782. Franklin, C. D. G. July 7, 1922. Timing-devices; contacts.-A device for adjusting the contact points of ignition magneto interrupters when the interrupter plate has been removed from the machine consists of a cupshaped member 1 having an annular extension 3 in which is mounted a rotatable socket 4. The socket is provided with a flange 5 and a central taper hole with keyway 8 to accommodate the corresponding conical boss on the interrupter plate 9, and is also provided with a wing nut 7 by which it may be rotated to carry round the interrupter plate. The wall of the casing 1 is fitted with a removable cam 2 similar to that on the cam case of the magneto and arranged to engage the oscillating interrupter lever as the plate 9 is rotated. A second detachable cam 10 may be provided to permit maximum separation of the contacts for inspection and adjustment, and a file 12 may be supported in a groove in a radial projection 11 of the casing 1 to allow the contact points to be filed while in the casing. In a modified form of the device as shown in Fig. 3 the cam case 15 is also removed from the magneto and supported on a disc-like member 16 which is formed with a peripheral shoulder to prevent lateral displacement of the cam case; and is provided with a rotatable socket 4 to accommodate the interrupter plate similar to that already described. Specification 193,996 is referred to.
Patent GB-336642-A (GB)
Title: Improvements in rotary propellers
IPC: B63H1/08
Filed: 1929-06-18
Abstract: 336,642. Lammeren, W. P. van. June 18, 1929. Paddle wheels.-In a feathering paddle wheel the blades are given a small negative angle of incidence -alpha during the first part of the upward stroke and a small positive angle of incidence +a during the second part of this stroke whilst during the down working stroke the blades are substantially at right angles to the direction in which the, propeller moves. Feathering gearing for giving the necessary variable velocity ratio preferably comprises substantially elliptically shaped toothed wheels. Each blade C is freely supported on a driving arm B which carries a lever D parallel to the main axis. A short shaft e having a pinion F and an elliptical toothed wheel G fixed thereto is supported in a bearing at the end of the lever D and a pinion F and wheel G engaged respectively in pinion H<2> through an idler H' and an elliptical wheel K, H<2> being fixed on the end of the blade C whilst the elliptical wheel K is fixed on the arm; this arrangement results in each blade making half a revolution on its axis for each revolution of the paddle wheel but with unequal velocity such as to give the incidence angles referred to above. In a modification the elliptical wheels are carried by a crank arm placed between the two sets. In a further modification the elliptical toothed wheels are of segmental form and are coupled by cranks whereby the wheels only function at the times of variation of velocity ratio.
Patent GB-1500704-A (GB)
Title: Measurement of rates of flow of fluids
IPC: G01F1/32
Filed: 1975-04-29
Abstract: 1500704 Measuring fluid-flow GEORGE KENT Ltd 29 April 1975 [29 April 1974] 18696/74 Heading G1R In a fluid-flow rate measuring means in which a bluff body 3 extends across a pipe section 1 though which the fluid flows, a further bluff body 13, extending parallel or substantially parallel to the body 3 is arranged downstream the construction and positioning of the body 13 reducing the magnitude of the variations in the meter factor (frequency of vortex shedding/fluid volume flowrate) as flow conditions are varied and the Reynolds number is reduced to relatively low valves. Graphical representations of the outer factor plotted against Reynolds' numbers for the body 13 when of circular or triangular section, Figs. 1b, 1c, 2-4 (not shown) are given for various ratios of the distance l' between the bodies 3, 13 and the section width d' of the body 13. In a further graph Fig. 5 (not shown), the meter factor is ploteed against the ratio between l' and the section width dof the body 3.  The body 13 may also be of rectangular section; it may be a flat plate, the smallest dimension of the section being perpendicular to the flow direction.
Patent GB-1503700-A (GB)
Title: Internal combustion engines having precombustion chambers
IPC: F02B19/10
Filed: 1975-05-05
Abstract: 1503700 I C engine with pre-combustion chamber ROBERT BOSCH GmbH 5 May 1975 [26 Oct 1974] 18697/75 Heading F1B A multi-cylinder I.C. engine in which each cylinder is provided with a main combustion chamber 3 above a piston and a pre-combustion chamber 2 communicating therewith via a passage 19, induction pipes 5 communicating with each main combustion chamber via main inlet valves 4 and conduits 11 providing communication between the induction pipe associated with a particular cylinder and the pre-combustion chamber associated with the cylinder which immediately precedes said particular cylinder in the firing order. Fuel is injected via a nozzle 8 long enough before the valve 4 opens so that a portion of it, mixed with air is drawn through conduit 11 to be supplied to the pre-combustion chamber 2 via a valve 7 of the cylinder to be fired immediately previously. Fuel air mixture enters the main combustion chamber 3 of the cylinder under consideration when the valve 4 is opened, mixture entering the pre-combustion chamber 2 of this cylinder by way of conduit 13 connected to the induction pipe 5 leading to the cylinder which follows immediately in the firing order. In Fig. 2 (not shown), is another arrangement of valve 7 and spark-plug 6.
Patent GB-266603-A (GB)
Title: Improvements in and relating to slicing machines
IPC: B26D7/00
Filed: 1926-07-27
Abstract: 266,603. Weenen, F. L. van. July 27, 1926. Cutting slices in succession. -In a slicing-machine of the disc knife reciprocating table type, the guide bar, or bars, for the table are shielded to prevent The deposition thereon of grease, particles of the substance being sliced and particles from the knife grinders. As shown in Fig. 2, the guide bar 4 is shielded by a semi-tubular metal member 7 bolted to the supports for the bar 4. The table 2 is formed with a semi-circular recess 6 to accommodate the bearing bushes 3. The shield 7 is housed in the semi-annular intervening space. In a modification the continuous single shielding is replaced by a pair of shorter shields secured at the ends to the supports for the bar 4. A short central portion of the bar 4 remains uncovered by the shields.
Patent GB-959470-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: WAINE PETER
IPC: G21C3/32
Filed: 1961-05-24
Abstract: 959,470. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 5,1962 [May 24, 1961], No. 18707/61. Heading G6C. A cluster fuel element comprises a spaced array of individual fuel members end-located by a pair of grid support structures constructed from thin section strips, the located ends of the fuel members being united with the grid support structures in a manner to prevent relative movement between the fuel members and the support structures, the latter being deformable by individual changes in the longitudinal dimensions of the fuel members. In one such fuel element, shown in Fig. 1, the grid support structures 2, 3 consist of thin stainless steel strips 7 having transverse troughs at intervals and assembled with the lengths of the strips intermediate the troughs welded together. The outermost strips 7 of the lower structure 3 have flanged ends welded to the inside of a U-section annular support 17 which seats on a flange 18 of an outer graphite sleeve 12 and has a spigot 19 engaging a recess 20 in an inner graphite sleeve 13. The sleeves 12, 13 together form a carrier member 6, the inner sleeve 13 having a spigoted graphite ring 14 covered by a spigoted locking ring 15 and the outer sleeve 12 being fitted with a screwed graphite ring 16. The ring 15 has aforked extension (not shown) and the structure 2 and the ring 15, and hence the ring 14 and the sleeve 13, are prevented from rotating relative to each other by a spigot attached to the structure 2 and located by the forked extension. In this way the structure 3 is held in the member 6 while the structure 2 is free to move longitudinally and will follow any movement of the fuel rods 1. The strength of the strips 7 is such that individual growth of the rods 1 results in deformation of the structures 2, 3 by buckling of the strips 7 but, because of their integration with the rods 1, this deformation does not lead to collapse of the structures. Each rod 1 comprises a stack of sintered UO 2  pellets 21 contained in a tubuular sheath 22 of stainless steel, end caps 23 being sealed to the ends of the sheath 22 by resistance welds 24. The pellets 21 are spaced from the end caps 23 by heat insulating plugs 25 of sintered alumina. Seam welds 4, 5 integrate the rods 1 with the structures 2, 3.
Patent GB-1043475-A (GB)
Title: Preparation of inorganic fluorides
IPC: C01B17/46
Filed: 1965-05-04
Abstract: Inorganic fluorides are prepared by contacting controlled amounts of F2 and a co-reactant whose vapour is combustible in F2, and which is an element or a fluoride of an element containing less fluorine than is desired in the product in a reactor in which the interior surface of the reactor surrounding the inlet for the vapour of the co-reactant is formed of an alkali metal, alkaline earth metal, or Cd fluoride having a boiling-point above the temperature to which it is exposed by the combustion of the co-reactant in F2.  Examples of co-reactants are S, Br, I, Cl, Hg, P, Na, K, Sb and their lower fluorides.  The controlled amounts of reactants are within \sB5% by weight of the theoretical amounts for the desired product.  Apparatus for making SF6 illustrated in a Figure (not shown), consists of a waterjacketed reactor whose walls are of Ni-Cu alloy and in which co-reactant feed pipe enters at the bottom of the reaction chamber through a supporting shell having a side open to the reaction chamber and containing powdered CaF2.  The main stream of the product is cooled, scrubbed with 10-20% aq.  KOH, dried (H2SO4) and liquefied by compression but a small fraction is diverted to a redox potential analyser which controls the motorized sulphur feed valve.ALSO:The bottom interior surface of a water-jacketed reactor constructed of Ni-Cn alloy and resistant to fluorine is formed of an alkali metal, alkaline earth metal or Cd fluoride.  An inlet in said surface comprises a sapphire tube mounted in an alumina block.
Patent GB-592260-A (GB)
Title: Improvements in or relating to alternating-current rectifiers
IPC: H01L21/288
Filed: 1943-11-12
Abstract: 592,260. Crystal detectors. WESTERN ELECTRIC CO., Inc. Nov. 12, 1943, No. 18907. Convention date, March 1, 1941. Drawings to Specification. [Class , 40 (v)] [Also in Group XXXVI] A rectifier comprises a block of silicon of high purity, e.g. 99.5 per cent, treated to have two substantial parts of different internal structure and an integral separating surface, with electrodes electrically connected to each part. A method of obtaining such as silicon body is described comprising heating 99 per cent pure silicon in a crucible, in vacuo or in helium atmosphere, slowly to above fusion point, 1400‹ C., cooling to permit solidifying and down to 1100-1200‹ C. at a rate of 60‹ C. per minute then at 120-130‹ C. per minute to room temperature, cutting a slab containing "columnar" and " non-columnar " zones with an intervening boundary surface bisecting the slab, grinding the surfaces parallel with the surface "boundary," etching the surfaces, plating with rhodium and soldering connections to the rhodium layers. Specifications 551,209 and 590,458, [Group III], are referred to.
Patent GB-203837-A (GB)
Title: Improvements relating to the weft-inserting and beating-up devices of looms for weaving
IPC: D03D49/60
Filed: 1922-07-11
Abstract: 203,837. Irving, W. June 11, 1922. Beat-up motions.-The weft is moved forwardly by an intermittently rotated toothed barrel and finally beaten up by an oscillating comb. The barrel 16, Fig. 1, with flexible needles C, C<1>, is rotated from a crank 7 by mutilated gearing, the needles passing through slots in the stay board 2 and then carrying the weft forwardly to the comb 14. The comb, oscillated from the crank 7 through link-work 8, 10 then engages the weft and completes the beat-up. The slotted connecting-rod 8 works on an antifriction bowl 9. The comb-carrying shaft 12 may extend from side to side of the loom or pivot pins may be used in which case the parts 8 - - 12 are mounted on each side. The comb or half reed is clamped in parts 13. The ordinary reed 3 is stationary and the comb 14 is preferably constructed similarly to it, by inserting the blades between two wooden trays and winding prepared threads round them to give the same " set " to both comb and reed. An alternative method of intermittently rotating the barrel is shown in Figs. 4 and 6 in which a chain 22 when pulled by the rod 10. rotates in a hub 23 which is loose on the shaft 15 but is in toothed engagement with a spring-pressed hub 24 splined to the shaft. An adjusting hub 26, Fig. 5, with flattened sides to abut intermittently against a fixed spring-pressed stop piece 27 is also fixed on the shaft. In operation, after the chain has partly rotated the barrel 16 and shaft 15 and is released, the recoil of a spring 29 rotates the hub 24 back to its initial position, in which it is retained by the action of the star-piece 27. The amount of rotation of the barrel at each stroke is varied by adjusting a pin d<1>. Shuttles.-The Provisional Specification states that the shuttle used has an extension on its side through which the weft passes to lay the weft very near the fell of the cloth.