baber/WOPTO huggingface dataset:
Patent GB-1125393-A (GB)
Title: An arrangement, e.g. for an identifier for an automatic telephone exchange
IPC: H04M15/08
Filed: 1965-10-14
Abstract: 1,125,393. Automatic exchanges. TELEFONAKTIEBOLAGET L. M. ERICSSON. 14 Oct., 1965 [14 Oct., 1964], No. 43684/66. Heading H4K. A subscriber's line identification arrangement comprises a matrix having at each cross-point two series connected threshold devices of amorphous semi-conductor material, a positive potential being supplied to the junction of one such pair on lead ar from the line circuit of a calling line, which is co-ordinately identified as each device breaks down upon the sequential scanning of first the column conductors A and then the row conductors B. Each scanning device RA, RB is a pulse driven counter. Scanner RA first supplies negative potential to the A conductors in turn and halts when the device A at a cross-point associated with a calling line breaks down since the ensuing pulse in transfromer TR steps on a three-place counter SR from 0 to 1 whereby the gate G2 prevents scanner RA from being driven further. Gate G1 now opens by a signal from the 1 position of counter SR and scanner RB starts scanning the B conductors with positive potential which again halts as the B device of the pair brakes down generating a second pulse through transfromer TR to step counter SR to the 2-position and close gate G1. The halted positions of both scanners identify the calling line and are read by the marker M, after which counter SR is restored to 0 to start scanner RA again.
Patent GB-1410591-A (GB)
Title: Magnetic record apparatus
IPC: G11B15/00
Filed: 1971-09-20
Abstract: 1410591 Control circuits for magnetic playback apparatus TELEVISION RESEARCH Ltd 14 Sept 1972 [20 Sept 1971] 43706/71 Heading G5R A track selection arrangement, Fig. 2, comprises semiconductor switches 3, one associated with each of four signal paths 19 from four playback heads and controlled by potentials applied from a controller over lines 21-24, track change pulses being applied to the controller at 32, to a two-stage counter 29, 30 thereof having four states, and the counter 29, 30 being connected to four NOR gates 25-28 so that successive pulses select tracks in a predetermined order. A track may also be selected by manual switches 33-36. Track change pulses are generated either automatically, by and end-of-programme detector, Fig. 6 (not shown), which detects the lack of a signal for a predetermined period, or detects a control signal on a tape track, or by a manual switch (S1/A), Fig. 6 (not shown). The end-of-programme detector includes a capacitor (C5) which in the presence of a signal is kept discharged through conducting transistor (TR3). If the capacitor (C5) charges it causes Schmitt trigger (TR4-TR6) to emit a track-change pulse. The detector is inhibited whenever the tape transport motor is switched off, or by means of a switch (Si/B). Signal source selection, Fig. 4.-Auxiliary signal sources such as microphones or radios can be selected by means of a function select switch 13 which is similar in construction to track select switch 3 and to which control potentials are again applied through four NOR gates 50-53. The logic is such that the tape track currently selected is normally reproduced unless an auxiliary source has been selected, and such that selection of an auxiliary source inhibits all, or only some, of the other signal sources. Any auxiliary source may also be selectively inhibited. Indicators.-Lamps (LP1-LP5), Fig. 7 (not shown) are incorporated in transistor circuits to indicate which tape track has been selected, or whether an auxiliary signal source has been selected. Alternatively, Fig. 9 (not shown), a flashing light indicates which auxiliary source has been selected, other sources having a steady light. Transport motor control.-Fig. 8 (not shown). A control circuit for the tape drive motor ensures that the motor 13 switched off if an auxiliary source has been selected for more than a predetermined interval, or if the tape signal has been inhibited. If capacitor (83) is permitted to charge, a square-wave generator (78-82) is inhibited and triac (73) switches off, causing the motor (M) to stop. The direction of tape travel may also be controlled in accordance with the track selected.
Patent GB-1458460-A (GB)
Title: Extrusion orifices
IPC: B22D11/00
Filed: 1974-10-10
Abstract: 1458460 Continuous casting MONSANTO CO 10 Oct 1974 [11 Oct 1973] 43885/74 Heading B3F To form a filamentary jet to be film-stabilized until solidified, molten metal is extruded through an orifice in a member made of polycrystalline thorium oxide having a density of from 9À5 to 10À0 gm./cm.<SP>3</SP> and a purity of at least 99À5% thorium oxide, e.g. a base-plate of a crucible or in an insert in such a base-plate. The thorium oxide contains up to 0À5% by weight of a sintering agent, such as oxide of calcium, cerium, magnesium or yttrium or ammonium chloride. The thoria member may be produced by hotpressing or sintering and machining. The orifice may be countersunk, e.g. to have a cone-shaped entrance with a 30 degrees vertex, and have a length/diameter ratio of 1 to 20, There may be more than one orifice. An orificed insert may be secured in a base-plate by a clamp or hold-down ring. A steel bar containing 1-2% Si and 0À25- 0À75 Mn was melted in a crucible with an orificed base and the crucible was heated to 1510-1550 C. and a second bar fed in through a seal so that its tip melted and dripped in. A pressure of inert gas of 20 p.s.i.g. forced the alloy through the orifice.
Patent GB-989301-A (GB)
Title: Improvements in or relating to the hydrogenation of unsaturated hydrocarbons
Filed: 1961-12-11
Abstract: The content of dienes is reduced in a mixture containing also hydrogen and carbon monoxide by passing the mixture in vapour phase over a supported nickel catalyst which, in operation, is partially sulphided but still contains a major proportion of nickel in elemental form, to cause hydrogenation of the dienes. The reaction temperature lies in the range 150 DEG  to 400 DEG  C., and the activated catalyst contains 2 to 20% by weight (of catalyst and support) elemental nickel.  The catalyst support is preferably sepiolite, but alumina, kieselguhr, chalk and silica gel are mentioned.  If a feedstock low in hydrogen is employed, it should be blended with a hydrogen-containing gas, and the mixture may contain small proportions of sulphur-containing compounds, preferably not less than 0.001 mol. %, and if no such compounds are present, extraneous sulphur compounds, diluted or not, are passed over the catalyst, e.g. as described in Specification 972,245 to sulphide a minor proportion of the nickel and improve the selectivity of the catalyst.  Feedstocks mentioned are coal gas, town gas, producer gas, water gas, and as hydrogen-containing gas, various tail gases, e.g. one containing 70 mol. % hydrogen and 30 mol. % methane may be used. Inert constituents may be present.  Four examples are described. Specification 476,684 also is referred to.
Patent GB-1058402-A (GB)
Title: Master alloy for the treatment of iron and steel melts
IPC: C22C28/00
Filed: 1963-08-27
Abstract: A master alloy for the treatment of cast iron or steel melts, especially for the production of spheroidal graphite cast iron and for the deoxidation and desulphuration of cast iron or steel, comprises:- <PICT:1058402/C6-C7/1> any balance being iron and/or manganese.  The ratio of Mg to R.E. is 2:1 to 4:1 and the ratio Mg to Ca is not less than 8:1.  The alloy is preferably added to the iron or steel melt by means of a dip bell, the height of the ingot mould substantially exceeding its width.
Patent GB-919810-A (GB)
Title: A glass product
IPC: C03C3/062
Filed: 1959-12-30
Abstract: 919,810. Nuclear fuel. COMPAGNIE DE SAINT-GOBAIN. Dec. 30, 1959 [Dec. 30, 1958], No. 44324/59. Class 39 (4). [Also in Group XXIII] A nuclear fuel is formed by a glass having the composition in percentages by weight: SiO 2  25 to 35; TiO 2 +ZrO 2  10 to 25, of which ZrO 2  is from 5 to 10; MO+ZnO+MgO+BeO 20 to 40, of which MO is 8 to 38, ZnO 0 to 15, MgO 2 to 5 and BeO 0 to 5; UO 2  and/or ThO 2  20 to 45; wherein MO represents one or more of the alkaline earth oxides CaO, BaO, SrO. A specific example is SiO 2  30; TiO 2  7; ZrO 2  7; CaO 12; ZrO 8.5; MgO 3; BeO 2.5 and UO 2  30. Small amounts of other oxides such as Al 2 O 3  and Fe 2 O 3  may be present as impurities. The glass product is used in the form of spherical particles or microbeads of diameters from a few to 100 microns as a suspension in a liquid such as heavy water. To reduce vulnerability to attack by water, the surface of the particles may be protected by a layer of an insoluble silicate such as of Be or Mg. A small quantity of Mg or Be hydroxide or a salt thereof may be introduced into the suspension in water or heavy water. Alternatively silica gel may be introduced into the water at a concentration of about 170 mgm. per litre.
Patent GB-1129133-A (GB)
Title: Nicotinate esters, processes for preparing them and compositions containing them
Inventor: WYLIE DAVID WRIGHT
IPC: C07D213/80
Filed: 1964-11-04
Abstract: 1,129,133. Xylitol nicotinates and acid addition salts thereof. STERLING WINTHROP GROUP Ltd. 3 Nov., 1965 [4 Nov., 1964], No. 44999/64. Heading C2C. [Also in Division A5] Novel xylitol nicotinates are prepared by reacting xylitol or a functional derivative thereof, e.g. xylitol sulphate, with nicotinic acid or a functional derivative thereof, e.g. a salt of nicotinic acid, or nicotinic anhydride or nicotinoyl chloride. The acid addition salts of the esters, are prepared in conventional manner. The examples describe the preparation of the penta-nicotinoate and its hydrochloride. The esters have pharmaceutical properties.
Patent GB-1498120-A (GB)
Title: Dehydrated food product
IPC: A23L27/00
Filed: 1975-10-31
Abstract: 1498120 Dehydrated food products SOC DES PRODUITS NESTLE SA 31 Oct 1975 [17 Dec 1974] 45239/75 Heading A2B A dehydrated food, consisting of grains having a porous structure and a density of 30-600 gm/litre, is made by extruding a plasticised powder or paste of the food into an expansion chamber at sub-atmospheric pressure e.g. 0.01-0.3 bars and cutting into fragments. The starting material may be a fruit, seed, or vegetable extract, a starch or modified starch e.g. dextrin, a gum, alginate, meat or fish extract, microbial protein e.g. yeast extract or autolysate, a protein hydrolysate or gelatin and may also contain spices, flavourings, colourings, fats, sugars or salts and up to 20% water. The product may be a dehydrated stock or sauce, or a flavouring (based on dextrin). The grains may be 1.0-15 mm. in size and the pore size is below 1 mm. Resistance to crushing is 2.5-20 newton. Water content is up to 10%, and the grains may absorb up to 25% fats. The extrusion temperature may be 60-125‹C and the pressure 1-15 bars. The extrusion nozzle has a diameter of at least 0.25 mm. Reference is made to Specification 1498119.
Patent GB-1442768-A (GB)
Title: Nutation damping in dual-spin spacecraft method of forming separation zones for defining a light transmissi
IPC: G01C21/18
Filed: 1973-09-27
Abstract: 1442768 Automatic control of attitude RCA CORPORATION 27 Sept 1973 [28 Sept 1972]  45267/73 Heading G3R In a duel spin spacecraft, having a de-spun platform with a motor driven spinning member, the motor is controlled according to a sensed pitch angle error signal and a phase shifted, lateral motion dependent signal. The motor speed is varied so as to reduce lateral motion and pitch error, and the phase shift is such as to provide optimum nutation damping. As shown, the pitch error signal from sensor 58 is summed with a signal dependent upon the spacecraft nutation, from sensor 50 via amplifier 51 and phase shifter 52 e.g. an operational amplifier. The resultant summation controls the spinning member speed, using motor 38, to dampen the nutation. Optimum damping is achieved, independently of the orientation of the nutation sensor, by varying the phase shift of network 52 in dependence upon the angular difference between the sensor axis and the optimum axis. The nutation sensor may sense spacecraft yarn or roll, or produce a time derivative of motion about a spacecraft transverse axis, using a horizontal scanner, gyroscope or accelerometer. The pitch sensor may be a separate horizon scanner, or both sensors combined e.g. in a gyroscope or star sensor, with a filler to separate the pitch and nutation dependent signals.
Patent GB-1149045-A (GB)
Title: Spray quenching
IPC: C21D9/46
Filed: 1966-10-13
Abstract: 1,149,045. Quenching steel plates. BETHLEHEM STEEL CORP. Oct.13, 1966 [Nov.24, 1965; March 14, 1966; June 22, 1966], No.45789/66. Heading C7N. A method for water spray quenching a steel plate which has been heated to completely austenetize it, is characterized in that the parameter Q#P sin # for each nozzle during the initial quenching period so as to minimize the formation of high temperature transformation products is at least 600 wherein Q is the quantity of water supplied in gallons per minute per square foot of area of the plate on which spray from the nozzle impinges, P is the water pressure in p. s. i. g. and # is the angle (up to 90 degrees) between the surface of the plate and the centre line of the water spray. Q must be at least 30 and P at least 35.
Patent GB-1533474-A (GB)
Title: Utensil with handle and mounting therefor
IPC: A47J45/07
Filed: 1976-11-04
Abstract: 1533474 Handles for cooking vessels DINGERKUS GEBR 4 Nov 1976 [27 Nov 1975]  45898/76 Heading A4A A handle 3 is mounted on a cooking utensil by the engagement of a bolt 11, in a recess 15 in a support member 2 secured to the wall of the utensil; the bolt 11 extends across a recess 4 in the handle with its ends engaging in guide grooves 12 in the wall of the recess 4, said grooves being elongated in a direction perpendicular to the axis of the bolt to permit movement of the bolt in said direction, and the bolt is pressed against the support member by a spring. In Fig. 2 the spring 6 is a bent strip having a transverse groove 10 for receiving the bolt while in Fig. 6 the spring 6' is in the form of a rod. The support member 2 is in the form of a U-shaped yoke having a web portion 14 which is welded to the utensil and two shanks 13 between which the spring 6 or 6' is located. In a modification (not illustrated) the bolt 11 is replaced by a laterally extending member formed integrally with the spring. The handle 3 is made of insulating material and has a metal sleeve 5 at the end adjacent the wall of the utensil; the handle may be removed by inserting a pin through a hole 18 to depress the spring. The handle may be for a saucepan or for the lid of a kettle, Fig. 8 (not shown).
Patent GB-1431084-A (GB)
Title: Superhard composition material based on cubic boron nitride and  a method for preparing same
IPC: C04B35/5831
Filed: 1973-10-02
Abstract: 1431084 Boron nitride composite VSES N-I INST ABRAZI VI SHLIFOVANIA USSR 2 Oct 1973 [2 Oct 1972] 46054/73 Heading C7A  A composite consisting of:- (a) 85 to 97% cubic boron nitride of dendritic structure and grain size 10<SP>-3</SP> to 10<SP>-4</SP> cms. (b) 2-5% of a substance selected from Mg and Ca borides and oxides. (c) 1-10% of a high melting point material (e.g. Si C, diamond, corundum, boron carbride, borosilicafluoride alone or in combination). The composite may be prepared by missing hexagonal boron nitride and ingredients (b) and (c) in powder form, briquetting and heating to 2,000-2,200‹C at 85 to 95 kilobars pressure to produce billets for the manufacture of cutting, drilling, boring tools and dies.
Patent GB-1000467-A (GB)
Title: Cryogenic devices
IPC: G11C11/44
Filed: 1963-11-22
Abstract: 1,000,467. Cryogenic devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 22, 1963 [Dec. 31, 1962], No. 46117/63. Heading H1K. [Also in Division H3] In a cryotron array the affect of temperature variations on the switching characteristics of the cryotrons is compensated for by including a length of superconductive material, the resistance of which varies with temperature, in series with a bias conductor between the bias supply terminal and a fixed potential terminal and connecting a conductor having a normal resistance between the two terminals. As shown in Fig. 1 gate current from source 5 passes through either path 1 or 3 depending on whether or not cryotrons 13, 15 are in their superconductive or resistive states respectively. Each cryotron comprises a control conductor 17 of lead insulated by thin film 19 of silicon monoxide from gate conductor 11 of tin inserted in the paths 1 or 3. In order to increase the speed of switching the cryotrons between resistive and superconducting states bias conductors 23 of hard superconductive material are registered with associated gate and control conductors 11, 17 and insulated therefrom by a second film 25 of insulating material, and connected to bias supply 27 by conductor 29 of hard superconductive material. When a current is supplied to a control conductor 17 the magnetic field produced thereby together with that produced by the bias current is in excess of the critical field of the gate conductor causing the gate conductor to become resistive and the working current to flow into the other path. Since variations in operating temperatures affect the transition characteristics, and the biasing magnetic field may be such if the operating temperature goes too high as to exceed the critical temperature and drive the gate conductors resistive, a temperature sensitive element 51 is inserted in lead 29 and a lead 53 of hard superconductive material, including a normal resistive insert 55 of gold, is connected as shown. Element 51 is formed of a segment 59 of superconductive material having a critical temperature slightly below the designed operating temperature and exhibiting a broad transition between superconducting and normal phase states, Fig. 3 (not shown). With increasing operating temperatures and resulting increase in the effective resistance of segment 59 less biasing current flows through conductors 23 and with decreasing temperature the effective resistance of segment 59 is reduced and more biasing current flows to the cryotrons. The element 51 may be in the form shown in Figs. 5, 6.
Patent GB-1318754-A (GB)
Title: Reversible and like ploughs
IPC: A01B3/421
Filed: 1970-09-29
Abstract: 1318754 Reversible plough locking mechanism VAN RUMPT NV 29 Sept 1970 [30 Sept 1969] 46283/70 Heading AIB A fixed head 1 for attachment to a tractor has a locking element 16, with recess 17, which engages a rectangular block 14 to hold a frame 2 for a reversible plough in one position. When an arm 10 is moved to the position indicated in broken lines, cam roller 26 engages cam surface 25 of rod 18 causing the rod to pivot about trunnion block 19 and move element 16, with which it has a screw connection, against spring 23 to an unlocked position 16'. The frame 2 may then rotate through 180‹ about shaft (4) (Fig. 1, not shown) until held in a second position when the block 14 engages a diametrically opposed second locking element 16. The rod 18 may be rotated so that the element 16 is raised or lowered due to the screw connection, e.g. into position 16". This will act through the block 14 to partial rotation of the frame to keep it level should the tractor and head take up an inclined position. The block 14 is capable of limited angular movement on stud 13 so that it can fit, without play, in its recess throughout this process. For this vertical adjustment the screw connection may be replaced by other means, e.g. a scissor shaped lever system.
Patent GB-1090908-A (GB)
Title: Electrical control system for an industrial truck
Inventor: TEDD DAVID CLIFFORD
IPC: H02H7/08
Filed: 1964-11-17
Abstract: 1,090,908. Control of D.C. motors. EATON YALE & TOWNE Inc. Oct. 22, 1965 [Nov. 17, 1964], No. 46720/64. Heading H2J. The subject matter of this Specification is identical with that described in Specification 1,090,907 but the claims are concerned with an electrical control system for an industrial truck, comprising an electric motor for driving the truck, the motor incorporating a field coil assembly and contactors which when closed determine the direction of current flow through the field coil assembly, a pair of terminals which in use are connected to the truck battery, at least one switching device controlling current flow from the pair of terminals through the contactors and the field coil assembly, means for switching said device on and off to provide a pulsating current in said field coil assembly, a safety circuit for opening the contactors whenever the switching device is on for longer than a predetermined period of time, and an inhibiting circuit sensitive to the voltage across the contactors and field coil assembly for preventing operation of the safety circuit unless the contactors are fully closed.
Patent GB-1006983-A (GB)
Title: Improvements in or relating to welding apparatus
Inventor: BARNES LAWRENCE THOMAS
IPC: B23K9/28
Filed: 1963-11-26
Abstract: 1,006,983. Valves. EUTECTIC WELDING ALLOYS CORPORATION. Nov. 26, 1963, No. 46725/63. Heading F2V. [Also in Division H5] Inert shielding gas in an arc-welding torch 10 (see Division H5) is controlled by an on/off valve comprising a slidable sleeve 60 having 0-rings 88 which either seal or interconnect radial ports 84, 94 when the sleeve is moved between stops 90, 92.
Patent GB-982376-A (GB)
Title: Improvements in or relating to a gas burner
IPC: F23D14/14
Filed: 1962-12-11
Abstract: 982,376. Gas burners. DRAVO CORPORATION. Dec. 11, 1962 [Dec. 14, 1961; Nov. 13, 1962], No. 46834/62. Heading F4T. A gas burner emitting radiant heat comprises a manifold 10 having an open side covered by a grid, a Venturi tube 5 supplying a as/air mixture and a deflector 17 forming an extension of the Venturi tube and terminating short of an end wall 13 of the manifold. The deflector 17 is inclined across the outlet of the Venturi tube and may be concave. The end wall 13 is provided with a plate 18 which rounds the corners of the manifold. The Venturi tube may have a middle portion of uniform diameter. Gas is directed into the open outer end of the Venturi tube by a gas nozzle supported on a spider secured to the Venturi tube. The grid comprises an outer screen 20 and one or more inner screens 19 which are spaced from the outer screen; the outer screen has larger openings than the inner screen and is formed of smaller diameter wires. The inner screen may by a single screen which is bent upon itself at spaced intervals to provide multiple thicknesses spaced by single thicknesses which may not be of substantial width. A reverberator screen is mounted in spaced relation to the grid and is of larger mesh opening and of heavier gauge. A pair of manifolds or a single manifold is mounted on a frame having a skirt to which an aluminium reflector is attached. A burner control is mounted on the outside of the reflector and gas therefrom is conveyed by conduits to the gas nozzles and to a gas pilot secured in an opening in the frame and ignited electrically. A pilot opening may be provided at either end of the frame. The mounting frame may be inclined upwardly. The opening between two manifolds is closed by a screen having a triangular crosssection. Screen covered openings are also provided in the mounting frame.