baber/WOPTO huggingface dataset:
Patent GB-1421913-A (GB)
Title: Degradable plastics compositions comprising carboxylic acid  high density polyethylene and another olefin polymer
IPC: C08L23/02
Filed: 1972-07-06
Abstract: 1421913 Degradable polymer compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 22 June 1973 [6 July 1972] 31689/72 Heading C3P Degradable compositions comprise (1) an olefin polymer, (2) as prodegradant 0À01 to 5 weight per cent of an aromatic or saturated aliphatic, substituted or unsubstituted, carboxylic acid having 12 to 22 carbon atoms in the molecule and (3) 0À5 to 5 weight per cent of high density polyethylene. The polymer may be a polymer of ethylene, propylene, butene-1, 4-methylpentene-1 or styrene, or a copolymer thereof with vinyl chloride, vinyl acetate, acrylic or methacrylic acids or esters; or an ionomer resin. Preferred polymers are low density polyethylenes. The compositions may also comprise conventional stabilizers, colorants and antistatic, antiblocking and slip agents, and may be made into containers, wrapping materials and string. Examples describe compositions of low density polyethylene, with 1 per cent of high density polyethylene together with stearic acid and, for comparison, oleic acid.
Patent GB-506036-A (GB)
Title: Method and apparatus for utilising molten material in heat treatment of liquids not miscible with the molten material
IPC: C10G7/00
Filed: 1937-11-18
Abstract: 506,036. Distilling oils &c. by contact with molten materials; film evaporators. PRAY, W: O. Nov. 18, 1937, No. 31719. [Class 32] In the heat treatment of liquids, e.g. distilling and cracking oils, by flowing the liquid in countercurrent over the surface of a stream of molten material, heat absorbed from the molten material by alternately immersing therein and removing therefrom a plurality of surfaces is transferred to the liquid taken up in films on the surfaces. A still A is partly filled with molten metal which is continuously circulated by a pump C through the still and a coil B in compartment D of a furnace. Oil preheated in coil F enters the cylinder through pipe 9 and flowing over the surface of the molten metal is removed through pipe 11 to a constant level tank G, the vapours formed being taken off through line 24. Heat from the interior of the molten metal is transferred to discs 6 mounted on a rotary shaft 4, the discs transferring the heat to the oil films formed thereon in the upper free space of the cylinder. The discs 6 may comprise sheets of steel or alloy and are provided with circular or slotted perforations to permit free movement of the oil and molten metal. Discs of conical, dished or corrugated form may be used. The molten material may comprise lead or lead-tin alloys according to the temperature required.
Patent GB-1307119-A (GB)
Title: Control rod anti-ejection latch
IPC: G21C7/12
Filed: 1970-06-30
Abstract: 1307119 Controlling reactors COMBUSTION ENG Inc 30 June 1970 [8 July 1969] 31723/70 Heading G6C A nuclear reactor control rod anti-ejection latch for use with a magnetic jacking type control rod drive comprises pawls 18 which ratchet to allow insertion of the control rod, but which prevent withdrawal unless the control rod lift coil 13 is energized. The pawls 18 are pivotally connected to an outer housing member 10 by pins 19 and normally engage one of a series of grooves 17 on the control rod extension 12, being positively disengaged when an unlocking slug 20 is drawn down by the coil 13. A connecting link 24 is pivotally attached to each pawl 18 by a pin 27 and to a link 22 on the slug 20 by pin 25. Biasing means in the form of coil springs 28 are connected to the housing member 10 by pins 29 and to the connecting links 24 at points 30. In the normal position, the springs 28 pull the slug 20 upwardly against a stop 33 and also, since the points 30 are slightly outboard of a straight line between the points of connection of the springs with pins 29 and the pins 25, exert a minor radial force on the connecting links 24. The pawls 18 are thus forced into engagement with a groove 17. The location of the pivoted connections and the spring force is such that ratcheting of the pawls 18 occurs without displacement of the slug 20 and against a lesser spring force than is acting on the slug
Patent GB-317326-A (GB)
Abstract: 317,326. Booth, W. N. Aug. 13, 1928, [Convention date]. Wheels.-Relates to apparatus for completing the assembly of a wheel having a telescoping parts which are moved relatively to one another and then secured, such as the hub of a wire-spoked wheel the adjustment of the hub-parts being utilized for setting up tension in the spokes. The wheelhub comprises the telescoped parts 1, 4 secured to the rim by sets of spokes 6<1>. 5 respectively. The apparatus for adjusting and fixing the hub-parts comprises a set of dies 13 adapted to engage the barrel and a beaded portion 8 of the part 4, an upper die 32 for forcibly moving the hub-part 1, and pivoted discs 34, fig. 2, 54, Fig. 5, for expanding portions of the part 1 into jointing engagement with the other hub-part. The dies 13 are carried by taper blocks 14 which are raised (to permit assemblage of the hub-parts) by means of a plate 17 actuated by a plunger 18 which also carries a centring-boss 11 for the flanged end 6 of the hub-part 1. The holder 20 for the upper die 32 is supported by screws 21 from a plate 19 connected to a power-operated ram, springs 22 being fitted between the plates 19, 20. After assemblage of the wheel-parts, the plate 17 is lowered whereupon the plate 19 is actuated in which operation the hub-part 1 is first moved to tension the spokes. In the further descent of the plate 19, the taper faces 39 of a plunger 38 engage the lower ends of the pivoted dies 34 whereby the hub-part 1 is punched out to engage the edge of the part 4. In the modification shown in Fig. 5, the dies 54 are fitted with pins 53 for indenting the hub-parts after the axial adjustment is effected.
Patent GB-1308414-A (GB)
Title: Method for reactivating hydrogenation catalysts
IPC: B01J23/96
Filed: 1971-07-06
Abstract: 1308414 Hydrogenating pyrolytic benzine SOC ITALIANA RESINE SpA 6 July 1971 [23 July 1970] 31760/71 Heading C5E [Also in Division B1] Pyrolytic benzines are hydrogenated over a palladium on alumina catalyst which has been regenerated by washing with aq. HNO 3  or H 3 PO 4  to remove lead. Organic matter may be removed first by combustion.
Patent GB-811287-A (GB)
Title: Improvements in or relating to conveyors
Inventor: ONIONS JOHN WILKINSON
IPC: B65G39/10
Filed: 1957-10-11
Abstract: 811,287. Idler rollers for endless belt conveyers. WOODHEAD & SONS Ltd., J. Oct. 11, 1957, No. 31858/57. Class 78 (1). In an idler roller for an endless belt conveyer, of the kind consisting of a helical spring 10, the ends of which are secured to stub shafts 11 journalled in bearings 12, the bearing 12 at at least one end is mounted by a pair of spigots 13 in slots 14 in a U-shaped carrier member 15 which in turn is mounted for angular adjustment on a pin 16 disposed in a base frame 17. The member 15 is angularly adjusted by rotation of a nut 22 threaded on the projecting end of an eye bolt which is mounted on a pin 20 carried by the member 15 and passes through an aperture in a plate 21 carried by the frame 17, so that the tension in the roller spring may be varied.
Patent GB-371807-A (GB)
Title: Improvements relating to gyroscopic compasses
IPC: G01C19/38
Filed: 1930-10-23
Abstract: 371,807. Gyroscopic compasses. SPERRY GYROSCOPE CO., Inc., Manhattan Bridge Plaza, Brooklyn, New York, U.S.A.-(Assignees of Sparling, E. C. ; Garden City. New York, U.S.A.) Oct. 23, 1930, No. 31933. Convention date, Oct. 24, 1929. Void [Published under Sect. 91 of the Acts]. [Class 97 (iii).] To prevent errors in the readings of gyroscopic compasses arising from the damping means during turning without eliminating the damping means, a mass is positioned in the N.-S. direction on the compass in accordance with a function of the N.-S. component of the ship's velocity and the latitude. The Figure shows the rotor casing 1, the followup ring 2, the vertical ring 3, gimbal rings 4, 41, the usual compensating weights 5, and the gravitational control comprising a frame 7 pivoted at 8 on the follow-up ring and carrying two pairs of interconnected mercury boxes 10-10<1>, 11-11<1> (not shown). Contacts 13-14, 13 -14<1> between the follow-up and vertical rings control the motor 15 which drives the follow-up ring through gearing 16 and also drives the usual transmitter. The compass is provided with a correction device as described in Specification 15679/11, [Class 97 (iii), Thermometers &c.]. The annular gear 16 is provided with a cam groove having a roller 18 on the end of an arm 19, 21 running therein. The arm 19, 21 is pivoted at 20 and engages at its other end lever 22 having a longitudinal slot for the reception of a pivot on a block 24 which can be moved up or down the screw 25 by rotation of the knob 26 either by hand or automatically from the ship's revolution indicator or log to adjust the pivot point of the lever 22. The upper end of the lever 22 is pivoted to a rocking lever 261 adapted to move a slidable member 29 on the lubber ring R. The slidable member 29 is adjustably connected to the lubber ring R by a hand-operated screw. The above described mechanism is adapted to move the lubber ring R in order to correct for errors due to latitude, speed, and course of the ship. The movements of the slidable member 29 drive through multiplying gearing a transmitter operating a repeater motor 47 adapted to move the correction .weight 42 along a screw 43 mounted in a N.-S. direction on the frame 7. The position assumed by the mass 42 is such as to neutralize the torque on the gyro due to the inclination arising from the action of the damper during turning or acceleration. A second adjustable mass (not shown) for keeping the gyro approximately level for different latitudes may be provided. In the application to a constant period compass wherein the mercury containers are pivoted on the framework and are adjustable by means of worm shafts according to the latitude, an additional correction for the mass 42 is provided by connecting one end of a lever, having a pivot point manually adjustable according to the latitude, to the member 29 and operating the transmitter by a toothed sector on the other end.
Patent GB-1061629-A (GB)
Title: Semiconductor device fabrication
IPC: C23C16/40
Filed: 1964-08-06
Abstract: 1,061,629. Semi-conductor devices. RADIO CORPORATION OF AMERICA. Aug. 6, 1964 [Aug. 30, 1963], No. 32101/64. Heading H1K. - Silicon oxide and activator impurity characteristic of one conductivity type are deposited on opposite faces of a semi-conductor wafer of the opposite conductivity type and the wafer heated to diffuse in the activator to form PN junctions therein. The amount of activator per unit area is greater on one face than the other to give junctions of different form. In one method boron-doped silicon oxide is simultaneously deposited on both faces by thermal decomposition of a gaseous mixture of ethyl silicate trimethylborate and argon or other inert gas. After cooling, an organic solution of boron oxide is coated on one face only. In another method a jet of the products of decomposition of a mixture of ethyl triethoxysilicate and an organic boron compound is projected on one face of the wafer and then a jet from a mixture containing less boron compound projected on the opposite face. In either case, after completion of the coating, the wafer is heated at 1300 C. for 14 hours to form the junctions. When forming an NPN structure by diffusion into a P-type silicon wafer from phosphorus containing layers one face is coated with phosphorus oxide paint before the phosphorus doped silicon oxide layer is formed on the faces.
Patent GB-428705-A (GB)
Title: A method of and apparatus for applying a protective enamel to can ends
IPC: B05C7/00
Filed: 1933-11-17
Abstract: <PICT:0428705/III/1> <PICT:0428705/III/2> A layer of coating liquid is applied to the inner face of a can end, having a peripheral channel 2, Fig. 1, to obtain on the end, a coating of a thickness in excess of that required for the protective coating to the central portion 1 of the end and to the vertical inner wall 3 of the peripheral channel 2, the coated end and liquid layer are separated and the end then rotated rapidly to distribute the coating over the peripheral channel and obtain a substantially uniform thickness of coating liquid across the can end.  Suitable apparatus comprises a tank 6, Fig. 2, containing the enamel and having an opening 8 and a chuck 9 attached to a spindle 10 mounted for rotation by a pulley 13 in bearings 11 carried by a bracket 12 secured to the tank.  The chuck 9 engages the can end adjacent the vertical wall 3, Fig. 1, and has a suction pad 14 with a port 16 leading to a port 17 in the spindle 10 to enable the can end to be firmly held.  A sleeve 19 carrying a head 20, recessed at 21 and with a bevelled edge 22, is mounted on a standard 18 within the tank 6, and is formed with a transverse slot 23 which receives a pin 24 carried by a lever 25 with a handle 26.  The head 20 may be immersed to fill the recess 21 with enamel and then raised above the level of the liquid to apply the restricted bath of enamel in the recess 21 to the can end, to coat all of the can end within the peripheral wall 3, the coating being carried up to the point x, Fig. 1.  The head is then lowered and the chuck rapidly rotated to distribute the enamel over the end and discharge the surplus.  The thickness of the coating may be adjusted by varying the viscosity of the enamel and the speed of rotation of the chuck.  A hood 27, which may be raised to permit the insertion of an end beneath the chuck, collects the surplus enamel which drains back to the tank 6. After coating the end is baked in the usual way.
Patent GB-639341-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/38
Filed: 1947-12-05
Abstract: 639,341. Windscreen-cleaners. TRICO PRODUCTS CORPORATION. Dec. 5, 1947, No. 32197. Convention date, Dec. 20, 1946. [Class 138 (i)] . A windscreen wiper comprises a flexible wiper blade, having a wiping edge and a flexible reinforcement consisting of a plurality of links arranged end to end along the back edge of the blade and connected together, so as to provide support throughout the length of the wiping edge. A windscreen wiper blade, Fig. 1, comprises a flexible wiping element 8 which may be moulded or formed in a plurality of stepped rubber plies, and a plurality of channel holders 7, 7<SP>1</SP> relatively movable and connected together, which holders reinforce the back of the wiper 8. Each holder 7, 7<SP>1</SP>, Fig. 3, is provided on both sides with a longitudinal groove 15. In order that the holders may be pivotally and longitudinally movable with respect to each other, forked ears 12 extending from one holder and which have inwardly-pressed projections 14, straddle the adjacent holder so that the projections 14 engage in the grooves 15 of the latter holder. The outer channel holders 7, Fig. 1, are pivoted at 10 to the ends of a bridge member 9 having an attaching device 11 for connecting with the wiper arm. More than one intermediate holder 7<SP>1</SP> may be used and in this case each holder 7<SP>1</SP> is provided with forked ears 12 at one end only and one end holder 7 is then also provided with forked ears at one end adjacent to a holder 71.
Patent GB-925943-A (GB)
Title: Improvements in or relating to turbine runners or pump impellers
IPC: F03B3/12
Filed: 1960-09-20
Abstract: 925,943. Hydraulic turbines; centrifugal pumps. BOHLER & CO. A.G. GEBR. Sept. 20, 1960 [Sept. 21, 1959], No. 32234/60. Classes 110 (1) and 110 (3). A runner for a Francis water turbine or a centrifugal pump comprises blades 4 each cast integrally with a portion 5 of the outer rim extending to the line of intersection of the next following blade with the rim. The end 3 of each blade is inserted into a slot in the conical hub 1 of the runner and welded thereto. The edge 6 of each rim portion 5 is welded to the edge 9 of the adjacent rim portion.
Patent GB-322611-A (GB)
Title: Improvements in or relating to means for electro-plating
IPC: C25D5/08
Filed: 1928-11-06
Abstract: 322,611. Pitt, W. J. Nov. 6, 1928. Electrodes, moving; electrolytes, circulating.- In electroplating apparatus of the type comprising an electrode of the material to be deposited enclosed in a sheath or pad adapted to be saturated with the plating solution and passed over the surface to be plated, means are provided whereby the solution may be projected under substantial pressure on to the electrode or pad or on to the surface to be plated or both. In the apparatus shown in Fig. 2, the electrode 2 is provided with an extension 4 on which is mounted a tube 3 provided with a bulb 6 and nozzle 7 whereby electrolyte may be projected on to the pad 1. A terminal 5 is fitted to the extension 4. The electrode 2 may be provided with perforated depressions 8 for the steady supply of electrolyte to the pad. The bulb may be replaced by a cylinder and plunger. In a modification, the apparatus is connected by a flexible pipe to a storage tank the air above which is maintained above atmospheric pressure by a hand or power driven pump connected through a non-return valve. The storage vessel may be attached to the person of the operator.
Patent GB-1222878-A (GB)
Title: Improvements in or relating to casting
Inventor: COLE JOSEPH IGNATIUS
IPC: B22D11/06
Filed: 1968-07-08
Abstract: 1,222,878. Automatic control of continuous casting. WESTERN ELECTRIC CO. Inc. July 8, 1968 [July 7, 1967], No.32418/68. Heading G3R. The output of a radiation detector responsive to the amount of molten material passing into a casting groove in the periphery of a rotable wheel automatically controls a valve which determines the rate of flow from a reservoir into the casting groove. In Fig. 1, molten metal, e.g. copper, flows through an outlet nozzle 19 of a tundish 17 into the groove 12 of a rotating casting wheel 11 which is cooled to produce a continuous casting 26 between the wheel and an associated driving band 14. Gamma radiation from a source 31 is applied in the vicinity of the normal level 22 of molten metal in groove 12 so that a radiation detector 33 associated with a photo-multiplier and amplifier 34 produces a pulse output the count rate of which is dependent on the level and the quantity of molten metal flowing from the tundish to the groove. This pulse output, the amplitude of which is maintained constant by feedback to control the high voltage supply 36 to the radiation detector, is applied through an amplifier 38, a unit 40 to eliminate pulses of small amplitude, a rate meter 41 and an indicator-controller 42 to operate a pneumatic follow-up servosystem 46 which maintains the supply of molten metal at the desired value by adjusting the setting of a stainless steel pin 23 relative to nozzle 19. A rate component of control is added by a differentiating circuit 61 and the correction applied by controller 42 is non-linear, being initially greater than proportional for large errors.
Patent GB-1523153-A (GB)
Title: Stereophonic pickup cartridge
IPC: H04R11/08
Filed: 1975-08-04
Abstract: 1523153 Stereophonic pick-ups NIPPON ATSUDENKI KK 4 Aug 1975 [7 Sept 1974] 32467/75 Heading H4J A variable reluctance stereophonic pick-up has an armature having a rod portion 9 and a disc portion 14 each signal channel having an associated magnetic circuit with a polepiece 5(7) adjacent the rod portion 9 and a polepiece 6 (8) adjacent the disc portion 14. In Fig. 1 the rod portion 9, and/or the disc portion 14, is a permanent magnet and the polepieces 5 and 6, 7 and 8, are ¢-shaped magnetic circuits with coils 1, 2 and 3, 4. In Fig. 2 the rod portion and disc portion are magnetized by a permanent magnet 18 coupled through a bracket 17 at one end and to the polepieces at the other end. The flux branches through the polepieces 5, 6 and 7, 8 of each circuit and, as compared with Fig. 1, the disc 14' has tabs 15', 16', lying behind the poles 6 and 8 so that the branches work in antiphase. Damping is provided by members 12.
Patent GB-757380-A (GB)
Title: Improvements in or relating to temporary buildings
IPC: E04B1/343
Filed: 1952-10-22
Abstract: 757,380. Roofs. PRICE, H. J. Jan. 22, 1954 [Oct. 22, 1952], No. 32528/55. Divided out of 757,315. Class 20(4). In a temporary building comprising a metallic framework covered with sheet material, the sheet material forming the roof is attached to the framework by clamping means 64, 67, Fig..2, at opposite edges. As shown applied to a framework as described in Specification 757,315 in which the uprights 1-4, Fig. 1, horizontal members 23-29, truss members 48-51 and horizontal roof members 30-34 comprise tubes which are connected together mainly by nuts and bolts engaging lues welded to, or formed from, the members, the truss members 48-51 project beyond the walls and receive grips at their ends. Each grip comprises a ring 65 slidable over the truss member and provided with a locking grub screw, and a piece of strip iron 66 welded thereto so as to clamp a tube 64 tightly against the lower edges of corrugated iron sheets forming the roof. The upper edges of the sheets are clamped by the ridge 67 formed of three overlapping parts of shallow angle section secured by screw-threaded spigots 35 and 63 on the roof member 34 and framework connectors 58. The corrugated sheet iron forming the walls is attached to the framework by hook bolts.
Patent GB-429269-A (GB)
Title: Improvements in or relating to light-reflecting devices
IPC: G09F13/16
Filed: 1933-11-22
Abstract: 429,269. Signs ; reflectors. WEARHAM, G. A., Myrtle Lodge, Lewisham Road, Lewisham, London. Nov. 22, 1933, No. 32540. [Classes 3 (i) and 3 (ii)] [See also Groups X and XX] A reflector comprises a plurality of lengths of solid glass or other transparent rod of curvilinear cross-section which are disposed parallel to one another in front of and in contact with or in immediate juxta-position to one or more light reflecting surfaces. As shown in Fig. 2, the reflector, comprising glass rods 1 and a reflecting surface 4, is placed behind a stencil 3 to form a sign. In a modification, Fig. 3, in which the reflector is arranged behind a glass plate 5 bearing a sign, the reflecting surface 4 is perforated with holes 8 to permit the passage of light from the rear, and colour filters R, B, L are provided on the rods 1. Some or all of the parallel rods may be formed from a continuous length. Oblique lines may be arranged on the reflecting surface to give an impression of colour change or movement during any variation of the angle of vision. The reflector may be resiliently suspended to permit changing effects by vibration.
Patent GB-137519-A (GB)
Title: Improved manufacture of potassium sulphate
IPC: C01D5/02
Filed: 1919-12-30
Abstract: Potassium sulphate is made by mixing finely pulverized potassium chloride with the theoretical quantity of sulphuric acid or potassium bisulphate solution of such strength that the moist mixture remains pulverulent, and this pulverulent condition is maintained throughout the process; for instance, 70 per cent sulphuric acid may be used, or a weaker acid if there is dissolved in it sufficient potassium sulphate to keep the mass pulverulent; or some potassium bisulphate may be dissolved in aqueous sulphuric acid.  The mixture is heated to 100-120 DEG  C., that is, not exceeding its melting-point, for instance, in a muffle and is stirred while the reaction proceeds. About half the hydrochloric acid is evolved, and is condensed.  The temperature is then raised to 300 DEG  C. either in the same furnace or in the pan of a salt-cake furnace, which for this purpose may be made of refractory brick instead of iron when almost the whole of the remaining salt is decomposed.  The mass may be finally heated in a muffle to 700-800 DEG  C. to complete the reaction.  When a small excess of sulphuric acid is employed which is desirable if complete reaction is desired, the excess is expelled with the last portions of the hydrochloric acid, and this acid, liberated at the final calcination, may be collected separately and is passed through a washing tower fed with sulphuric acid to recover the excess.