baber/WOPTO huggingface dataset:
Patent GB-1186912-A (GB)
Title: An Injection Moulding Machine with a Safety Device
IPC: B29C45/84
Filed: 1967-04-17
Abstract: 1,186,912. Machinery safety devices. ARBURG MASCHINENFABRIK HEHL & SOEHNE. 17 April, 1967, No. 17453/67. Heading F2J. In a machine having a safety device comprising a safety cover 6 adapted to be located in two different protective positions in accordance with different working conditions of the machine, a switching rod 8 is provided which is pivotal about its axis and has switching notches 8<SP>1</SP>, 8<SP>11</SP> angularly offset relative to one another on its periphery so that in each working condition of the machine, with the appropriate setting of the switching rod 8, the safety cover 6 may be moved into the corresponding protective position causing the switching rod notch 81 or 811 to actuate switches 12, 13 and close the operating circuit of the machine. The cover 6 is guided along the rod 8 and another rod. The rod 8 may be turned manually by means of a pivot lever 14 to which a securing lever 15 is connected. The safety device is particularly applicable to an injection moulding machine.
Patent GB-1048025-A (GB)
Title: Winding temperature indicator for dry-type transformers
Inventor: DORMER ROY LEONARD
IPC: H01F27/40
Filed: 1963-05-03
Abstract: 1,048,025. Protective arrangements. BRUSH ELECTRICAL ENGINEERING CO. Ltd. March 18, 1964 [May 3, 1963], No. 17463/63. Heading H2K. [Also in Division G4] The temperature of a dry-type transformer is measured by means of a thermal image device which consists of an inner metal tube 1 (Figure not shown) carrying a thermometer and an outer metal tube 2 carrying a heating winding supplied from the secondary winding of a current transformer the primary of which is connected in one phase or line of the said dry-type transformer. The assembly is attached to the transformer casing by means of a flange 6, and the thermometer is maintained in good thermal contact with the inner tube 1 by a spring 5. The temperature indicator may be arranged to operate an alarm or to disconnect the transformer from the supply when a certain temperature is exceeded.
Patent GB-511092-A (GB)
Title: Improvements in or relating to electrical switching apparatus and sets of contact springs therefor
IPC: H01H50/58
Filed: 1938-06-13
Abstract: 511,092. Electromagnetic relays. VIGREN, S. D., and SVENSSON, R. A. June 13, 1938, No. 17505. [Class 38 (v)] In an electromagnetic switch having a number of movable contact springs, these are actuated by a common operating member 23 in the form of a comb, which is itself operated by the armature. The top and bottom ends of the member 23 fit respectively into holes in a pre-tensioned spring 26 and a stiff metal bridge 16, and the bridge 16 is adjustable in a vertical direction by a screw 17 so as to vary the initial position of the member 23. The member 23 passes through holes in both the fixed and movable contact springs, but the holes in the latter are smaller so that the teeth of the comb engage them. The fixed contact springs have side lugs adapted to engage slots in a support 18. A fixed contact spring such as 6, Fig. 3, may have its end bend up as shown. This will serve to raise also the movable contact 11 so that the member 23 will have to move a greater distance before it engages it. Thus 11 may be called a "latebreak " contact. Fig. 3 shows the following contact combinations as examples of what can be obtained:-a " make " contact 10, 14, a " make and break contact 9. 13, 8, an "early break " contact 12, 7 and a " late-break " contact 11, 6. The contact springs are preferably of the pretensioned kind described in Specification 473,305.
Patent GB-1412849-A (GB)
Title: Mass spectrographs and ion collector systems therefor
IPC: H01J49/02
Filed: 1973-04-12
Abstract: 1412849 Mass spectrometers ASSOCIATED ELECTRICAL INDUSTRIES Ltd 11 April 1974 [12 April 1973] 17589/73 Heading H1D A mass spectrometer which can have magnetic and electric separating fields is provided with an ion collector system comprising a plurality of ion sensitive wires or strips 28 which emit electrons when ions impinge thereon, the wires or strips being arranged in or near the focal plane of the spectrometer and each wire or strip having a corresponding scintillator 32 arranged to receive electrons emitted therefrom and a light guide 34 leading to a photomultiplier 36 which provides an electrical output. Figs. 5 and 6 (not shown) illustrate possible configuration of wires or strips in and adjacent the focal plane to make best use of the space available thus enhancing the resolving power of the spectrometer.
Patent GB-973154-A (GB)
Title: Fluid pressure motor construction
IPC: B60T13/563
Filed: 1961-05-15
Abstract: 973,154. Fluid-pressure brakes; covers for resisting fluid pressure; cylinders and pistons. BENDIX CORPORATION. May 15, 1961 [June 30, 1960], No. 17629/61. Headings F2F, F2P and F2T. [Also in Division G3] The cover plate for a fluid-pressure servomotor is notched at its periphery to receive equally-spaced inwardly-bowed portions of the shell, the cover being inserted in the shell to clamp a sealing structure against an abutment means and rotated relatively to the shell to lock the edge portions behind the bowed strip portions of the shell. A tandem piston vacuum suspended brake servomotor has a shell 12 divided into front and rear sections by a partition B through which slidably projects a movable power piston C rigid with the inner parts of two diaphragms 22, 24. The peripheries of the diaphragms are sealed to a flange 92 of the partition B and one sealingly clamped between an abutment 94, formed in the shell 12, and a cover 10 locked to the open end of the shell. The power piston C is secured to a valve structure E forming a self-lapping valve for the admission of atmospheric air through filter 60, control port 46, and annular passageway 66 to the spaces 32, 28 behind the diaphragms when movement of a control rod D opens a valve 76, the vacuum control valve 48 providing a self-lapping action and compression of a rubber mass 72 between the end of the valve member 62 and the force transmitting member F providing feedback of brake " feel." The shell 12 is slotted circumferentially at equally spaced points slightly rearwards of its open end, the strips 82 between the slots 80 and the open end being bowed radially inwards to form locking abutments. The cover 10 has a flanged end 84 scalloped out to accommodate the bowed sections 82, such that cover can be inserted axially to clamp the diaphragms and then rotated relative to the shell to lock in position. Diametrically opposed opposite facing tabs 102 are provided to prevent excess and unwanted relative rotation of the cover and shell. Specification 973,155 is referred to.
Patent GB-1084737-A (GB)
Title: Improvements relating to hygrometers
Inventor: MCINROY JOHN
IPC: G01N25/14
Filed: 1963-05-03
Abstract: 1,084,737. Hygrometers. HYMATIC ENGINEERING CO. Ltd. May 1, 1964 [May 3, 1963], No. 17638/63. Heading G1S. A hygrometer device comprises an observation chamber 64 having an exhaust valve 70 for allowing gas under pressure to escape, a lamp 66 for illuminating the chamber 64 and means for charging the chamber from a high pressure supply including a coiled capillary tube 50 through which gas flows from the supply to the chamber. As shown in Fig. 1, the helical coil of capillary tubing 10 is wound around a former 11 having transverse bores 14, 15 serving as inlet and outlet pipes. The former may comprise spaced parallel members across which the tube is wound, or alternatively the helical coil may itself be wound on to a former having a central elongated part provided with spaced, laterally projecting fins.
Patent GB-460183-A (GB)
Title: Improvements in or relating to metallurgical processes for the recovery of metals from ores
IPC: C22B11/08
Filed: 1935-06-19
Abstract: To recover precious metals from ores a pulp is formed of the comminuted ore and an alkaline solution of an alkali or alkaline earth metal cyanide, the precious metals and any copper present are precipitated by the addition of a metallic precipitant, e.g. zinc, and the values are then recovered by a flotation concentration.  To prevent re-solution of the precious metals during the flotation when the pulp absorbs oxygen, the pulp is stabilized by inhibiting or destroying the cyanogen solvents in the pulp by the addition of a metallic salt such as copper sulphate, copper chloride, mercurous chloride, or other mercury salt.  The pulp is preferably conditioned prior to the addition of the metallic precipitant to deoxidize it, and to afford a solvent for the metallic precipitant.  The deoxidation &c. may be effected by adding a bisulphite of an alkali or alkaline earth metal, e.g. sodium or calcium bisulphite, or ferrous sulphate.  The pulp may be neutralized by adding an acid such as sulphuric acid prior to the addition of the deoxidizing agent. Alternatively the pulp may be conditioned by passing sulphur dioxide through the pulp.  The precipitating agent, e.g. zinc dust, may be used as an emulsion in water and a soluble lead salt, e.g. the acetate or nitrate, may be added to the emulsion.  In the case of a low-grade ore the whole of the pulp may be subjected to the successive steps of conditioning, precipitation, stabilizing, and flotation, but in the case of a high-grade ore the pulp may be thickened after the cyaniding step and the bulk of the liquid passed to an ordinary precipitation and filtering plant, from which the barren liquor is returned to the cyaniding step.  Only the remaining pulp from the thickener is treated according to the invention. Alternatively the slime components of the ore may be separated by a washing operation from the coarser components, the slimes being thickened, treated with cyanide solution and then conditioned &c. by the process described, whereas the coarser components are ground, cyanided and treated in a thickener, the thickened pulp being agitated with additional cyanide solution and filtered, the filtrate being returned to the grinding step.  The liquid from the thickener is clarified, deaerated, and treated to precipitate the values and filtered, the barren solution from the precipitating step being used for treating the slimes.  The flotation concentrate includes precipitated values and also any precious metals or their minerals which did not dissolve in the cyanide; the values may be recovered from the concentrate by cyanidation. The deoxidation of the pulp in the conditioning step and the addition of the cyanicide are stated to improve the flotation, particularly of oxidized or tarnished sulphide ores. Specifications 442,315 and 451,979 are referred to.
Patent GB-916022-A (GB)
Title: Apparatus for producing intense energetic gas discharges
IPC: F03H1/00
Filed: 1959-05-25
Abstract: 916,022. Discharge apparatus; ion sources. UNITED STATES ATOMIC ENERGY COMMISSION. May 25, 1959 [July 24, 1958], No. 17693/59. Class 39 (1). A high intensity energetic arc discharge is set up between a cathode and an elongated cup shaped anode and an axial magnetic field is maintained between the electrodes, feed, gas being supplied to the interior of both electrodes. The gas is preferably deuterium or tritium but may be air, hydrogen, argon, nitrogen or helium. There is complete ionisation of the feed gas within both cathode and anode and complete space charge neutralisation within or at the face of the cathode according as to whether the cathode is a hollow cup, Figs. 2-4 (not shown), or has merely an axial bore for the feed gas. The device may be a source of plasma or may replace the carbon arc in plasma-containment machines using dissociation of molecules, as in Specification 853,916. Alternatively positive ions accelerated towards the cathode, in the form of a collimated stream may be projected through an open end of the device to serve as propulsion means for a space vehicle, Figs. 3, 4 (not shown). The tungsten electrodes have thick copper jackets 3, 4 fitted with watercooling pipes 33. Floating cathode shields 5, 6 and a floating anode shield 7 are provided. Baffles 18, 19 are also floating, baffles 18 and 19 preventing recombined positive and negative ions respectively from flowing back to the arc and baffles 18 also trapping positive ions flowing towards the cathode. To start the arc the R.F. source 31 is switched on for the duration only of the starting interval. Alternatively a high D.C. potential is applied, or an auxiliary electrode adjacent the cathode is first made to touch it, then separated, then the auxiliary electrode is removed after striking. In Fig. 2 (not shown) the arc is a hollow cylinder, electrons being accelerated radially from the inside wall of the cathode. The arc is initiated at the facing tips of the cup anode and cathode after which the gas feed is reduced to make the discharge move inside the anode and cathode. In Fig. 3 (not shown) the hollow arc is enlarged at its central portion, the magnetic fields forming " mirrors " at each end. The cathode is supported by radial spokes.
Patent GB-315785-A (GB)
Title: Improvements in fire extinguishers
IPC: A62C13/00
Filed: 1929-06-10
Abstract: 315,785. Pyrene Manufacturing Go., (Assignees of MacGregor, P. G.). July 18, 1928, [Convention date]. Portable pressure reservoirs.-In a fire-extinguisher of the kind in which liquid is expelled from a container by compressed gas held in a sealed cartridge, and the liquid outlet from the container is provided with a seal, separate puncturing means for the cartridge and the outlet seal are provided, and are simultaneously operable by a single actuating device. As shown, the cartridge 12 is carried in a cradle 32 depending from a sleeve 13 and provided with an adjustable piercer 31. The sleeve is formed with an outlet chamber 39 communicating with a discharge nozzle 37 by a pipe 38. The chamber 39 is sealed from the liquid contents of the extinguisher by a disc 26 held in place by a flanged plug 14 which serves as a closing cap for the extinguisher. A screwed stem 17 with hand-wheel 19 is movable in the plug 14. Slidable through the stem 17 is a piercing plunger 21 formed with an impact head 22 and an abutment 27. and movable through packing 28. In operation, the plunger 21 is forced in by hand or by screwing in the stem 17, so that it pierces the seal 26 and forces the cartridge 12 down upon the piercer 31. Liquid is then forced to the outlet chamber 39 through ports 41 in the plug 14.
Patent GB-610804-A (GB)
Title: Power plant
IPC: F02C6/20
Filed: 1943-10-28
Abstract: 610,804. Propelling aircraft. TURBO ENGINEERING CORPORATION. Oct. 28, 1943, No. 17854. Convention date, Sept. 30, 1942. [Class 4] [Also in Groups XII and XXVI] In a gas-turbine power plant for aircraft using airscrews and propulsion jets, the distribution of power between an airscrew and a propulsion jet is raised by means of jet flaps or a conical plug axially movable in the jet tube. The power allocated to the jet should be between 10 and 60 per cent at air-speeds up to 450 m.p.h. and at least 25 per cent at speeds beyond 500 m.p.h. and at least 25 per cent at speeds beyond 500 m.p.h. or such percentage in accordance with the air-speed as will secure a jet-propulsion efficiency of at least 70 per cent. Part of the turbine exhaust may be diverted from the propulsion jet by valve-like flaps and led to wing spaces from which it emerges through rearwardly-directed slots. The jets may be augmented by air induced by the nozzle 356, Fig. 8, through a passage 358, 360 and drawn from the wing boundary layer through forwardly-directed slots 368. Part of the turbine exhaust may be diverted to a wing space 372, Fig. 9, from which it passes by a nozzle-like slot 374. It induces air drawn through forwardly-directed slots 376 in the upper wing surface and discharges through rearwardly-directed slots 378. Specifications 586,913, [Group XXVI], and 587,150 are referred to.
Patent GB-275778-A (GB)
Title: Improvements in or relating to the separation of materials by flotation
IPC: B03D1/04
Filed: 1926-07-16
Abstract: 275,778. Elmore, F. E. July 16, 1926. Flotation processes and apparatus.-In a vacuum process for the concentration of coal, ores, and the like, the pulp is sucked up into a separating chamber as a substantially vertical stream travelling at approximately constant velocity. The constant velocity may be obtained by arranging that the stream shall have increasing cross section in the upward direction. In the apparatus shown, pulp from a hopper w is drawn up a tapering pipe u by suction applied at a pipe e. The pipe u opens at about the middle of a double conical separating vessel a and is provided at the upper end with louvres x. The concentrates pass into a vessel d and are discharged down a pipe g into a launder h, while the tailings pass down a pipe k from which they are discharged by an intermittently operated valve m, actuated by a cam t and adjustable rod q. Radial baffles y are provided in the vessel a and water may be admitted through a tangential jet z to impart rotation to the pulp and facilitate the liberation of any remaining concentrates. A jet i may be provided to increase the velocity in the pipe g. Specifications 29282/04 and 191,383 are referred to.
Patent GB-493434-A (GB)
Title: A fuel-cooled atomiser for internal combustion engines
IPC: F02M53/04
Filed: 1937-06-16
Abstract: 493,434. Liquid - fuel injectors. ELKINGTON, H. D. (Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij) June 16, 1937, Nos. 17959/38 and 17960/38. [The first Provisional Specification being divided out of Specification 492,211 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 23, 1937.] [Class 7 (iii)] A fuel-cooled injector in which fuel circulates along a periodically lifted needle valve 5, is provided with grooves, partly walled by the needle body and partly by the housing surrounding the needle, through which fuel is supplied to and discharged from the space 8. The grooves 5 may be straight or helicoidal and may be formed in the needle housing or between ribs 6 in the needle. Two opposed ribs on the needle may extend into grooves in the housing to prevent fuel passing from the supply duct 7 to the discharge duct 9 without entering the space 8. Specification 492,211 is referred to.
Patent GB-549818-A (GB)
Title: Improvements in or relating to wheel mountings
IPC: B60B27/02
Filed: 1940-12-21
Abstract: 549,818. Spring devices for cycles &c. BASSICK CO. Dec. 21, 1940, No. 17984. Convention date, Dec. 21, 1939. [Classes 136 (ii) and 136 (iii)] An amplified visual indication of the upward cushioned movement of the (front) wheel, which includes a torsion-sustaining joint, is obtained. The hub 13 has ball bearings 22 on a cylindrical member 15 which is bored eccentrically to receive a stationary axle 12 fixed to the legs 11 of the fork. Highly compressed rubber sleeves 17, vulcanized to the axle 12, engage the surface of the bore. When the wheel encounters a bump on the road, the member 15 oscillates on the axle 12 against the resistance due to the rubber. To the member 15 and secured, by screws 34, guard members 18 which (a) protect the bearings 22 and (b) carrying a pointer 57 of, e.g. coloured enamel. Fig. 1 shows the front wheel unloaded; Fig. 2 shows it loaded, as by passing over a bump. The ends of the bore are provided with self-lubricating bushings 39 and adjusting nuts 40, the nuts having projections which engage slots in the legs 11 of the fork and ensure that the axle does not rotate relatively to the legs. Washers 47 having projections 49 which engage grooves 50 on the axle are deformed in situ (at 51 and 52) to engage grooves in the nuts 40 and so lock the nuts permanently in position after adjustment.
Patent GB-905275-A (GB)
Title: Improvements in or relating to switching circuits
Inventor: TOMLINSON TERENCE BERNARD
IPC: H03K19/08
Filed: 1958-06-05
Abstract: 905,275. Adders; radix converters. COMPUTER DEVELOPMENTS Ltd. June 4, 1959 [June 5, 1958], No. 17993/58. Class 106 (1). [Also in Groups XXXVI and XL (c)] A combined AND/NOR circuit comprises at least three non-linear resistive elements 1A, 1B, 1C connected, as shown, on one side to respective switching voltage sources and connected together on the other side to two voltage discriminating circuits comprising respectively diode 7, resistor 8 and voltage source 9 and diode 11, resistor 12 and voltage source 13. The non-linear elements have resistances which decrease with the magnitude of the applied voltage; each may comprise for example a pair of Zener diodes connected back-to-back or an element of a suitable semi-conductor material such as silicon carbide or cadmium sulphide having a characteristic as shown in Fig. 3. Each switching voltage source can provide two output voltage levels, for example V and O volts. In the arrangement illustrated, the source 9 has a voltage approximately 2/3V while the source 13 has a voltage of approximately 1/3V so that only when each of the switching voltage sources is delivering a voltage V is the diode 7 capable of conducting to supply an output signal to the output circuit 10A while only when each switching source voltage source is delivering zero voltage can the diode 11 conduct and pass an output signal to the output circuit 14A. Fig. 7 shows a binaryadder circuit employing a plurality of the gating circuits shown in Fig. 1, the circuit being arranged to add corresponding digits A, B of two binary numbers with provision for incorporating a carry resulting from the addition of the immediately lower order digits and for providing a carry for use in the addition of the immediately higher order binary digits. The circuit comprises five groups 18,19, 20, 21, 22 of non-linear elements to which are applied, as shown, the digits A, B and the carry C together with their inverses. It will be seen from the Figure that a carry output is delivered to circuit 10A when at least two of the digits A, B, C have unit value represented by the voltage V while a unity sum output is applied to circuit 14A either when only one of the digits A, B, C has a unity value or when all three of the digits has this value. The circuit may either form one element of a parallel adder or by incorporating a suitable delay in the path between carry output and input be made to constitute a complete serial adder. Fig. 8 shows a circuit for decoding a threeelement binary signal. The binary signal having digits A, B, C is applied with certain digits inverted as indicated, to the circuits 26, 27, 28 and 29 outputs being delivered to the respective lines 10, 14, thereof when the three-element binary signal has the decimal values indicated by the numbers on the righthand side of the Figure. Specification 905,276 is referred to.
Patent GB-698660-A (GB)
Title: Improvements in and relating to oscillating or vibrating mill with air separation
IPC: B02C17/14
Filed: 1952-07-16
Abstract: 698,660. Ball mills. NAAMLOOZE VENNOOTSCHAP TEMA. July 16, 1952 [July 19, 1951], No. 18003/52. Class 59  In a vibrating or oscillating ball mill 2, the material to be ground and an air stream are fed to the mill through tubes 5, a jacket 3, and one or more holes or slots 4. The dust-laden air passes through an outlet 6 to a separator 7 from which insufficiently ground material passes back to the mill through a conduit 8. The ground material passes from the separator to a cyclone 10, the separated 'ground material being removed at 11 and the separated air passing through a suction fan 13 and a zone 15 from which the remainder of the ground material is removed at 16. The mill may oscillate alternately in clockwise and counterclockwise directions in which case the upper surface of the mill is heart-shaped. Further, a plurality of mills, actuated by a common drive, may be connected to one separating system.