baber/WOPTO huggingface dataset:
Patent GB-345518-A (GB)
Title: An improved process for the dehydration of magnesium chloride
IPC: C01F5/34
Filed: 1930-04-05
Abstract: Anhydrous magnesium chloride is obtained by gradually adding the hydrated salt to a relatively large mass of liquid anhydrous magnesium chloride, to which potassium chloride, in the ratio of one molecule to two molecules magnesium chloride, may have been added to lower the melting point.  The melt is preferably heated to 500 DEG C. by alternating currents, high-frequency induction currents.  The evolution of steam may be facilitated by partially evacuating the atmosphere above the melt.  The electrolytic production of magnesium from the melt is referred to.
Patent GB-378852-A (GB)
Title: Improvements in or relating to pneumatic tyres and their fitments to road vehicles and aircraft
IPC: B60C3/04
Filed: 1931-04-14
Abstract: 378,852. Pneumatic tyres. KILLEN, E. B., 27, Queen Victoria Street, London. April 14, 1931, No. 10921. [Class 144 (ii).] A low-pressure pneumatic tyre of the kind described in Specification 326,760, [Class 144 (ii), Wheel tyres, Pneumatic &c.], constructed to replace single or twin circular section highpressure tyres of similar centre line height, is formed (in cross section) with an arcuate cord foundation at least 50 per cent wider than the high-pressure tyre, an abnormally wide tread merging into short side-wall pillars 18, 19 which form the widest part of the cover, and widely-spaced beads 2, 3. The profile of the foundation from the tread apex to the parts 18, 19 is semicircular. The side portions 12, 13 of the tread are formed ribs 15 and alternating triangular cavities 16, 17.
Patent GB-805034-A (GB)
Title: An improved process and apparatus for leak detection in vacuum vessels
IPC: H01J41/04
Filed: 1955-04-15
Abstract: 805,034. Electric tests. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. April 15, 1955 [April 15, 1954], No. 10922/55. Class 37. [Also in Groups XL (a)] A process for detecting leaks in vacuum vessels by means of a test gas penetrating the leak, is characterized in that the gas which penetrates the leak and residual gases are ionized in a space connected to the vessel under test, and the test gas ions are separated from the ions of other gases by subjection to a high-frequency voltage of such frequency that the test gas ions alone acquire sufficient energy to pass through a delay space and travel to a collector electrode. In Fig. 3, a test gas spray 18 is moved over the vessel 14, which is evacuated by a pump 16 through an electron discharge tube 1, comprising a hot cathode 2. Grid 3 is given a positive potential of 50 volts from a stabilized source 9, and acts with the cathode to ionize any test gas, e.g. hydrogen or argon, which is present. Grids 4, 5 and 6 are given a negative potential of 20 volts, to accelerate the ions, and grid 7 is given a positive potential of forty volts, to delay the ions. In addition, grids 4 and 6 are supplied with a radio-frequency voltage of such amplitude and frequency that only ions of a particular molecular weight can pass the grid 7 and reach the collector 8, but other ions do not gain sufficient energy, and are turned back. A formula is given to determine the frequency required for test gas ions to pass to the collector 8. An ion current meter 12 measures the current between the collector 8 and earth, which is a measure of the amount of test gas present.
Patent GB-109448-A (GB)
IPC: B21J15/38
Abstract: 109,448. Gjelstad, A. Sept. 2, 1916, [Convention datej. Stands for portable machines.-A stand for a pneumatic riveting-hammer, acting upwards as on the bottom of a ship, has a ring support 3 and a plate 5 with a hole 4 which receives the lower end of the hammer and moves it in a circle. The plate 5 is adjusted by a handle 7 and fixed by a set-screw engaging holes in the disk 6 which is rotated manually through bevel-gearing.
Patent GB-1134336-A (GB)
Title: Improvements in electrical apparatus insulated with a mixture of insulating gases
IPC: H01F27/20
Filed: 1966-03-14
Abstract: 1,134,336. Transformers; insulation. GENERAL ELECTRIC CO. 14 March, 1966 [16 March, 1965], No. 11040/66. Headings H1A and H1T. Electrical apparatus (e.g. a current transformer) is insulated by a gaseous mixture of CCl 2 F 2 , and either SF 6  or C 2 F 6  or a mixture thereof, and a gasous filler (such as air or nitrogen or a mixture thereof) the partial pressures of the constituents at room temperature being 5-15psia, 30-60psia and 3-20psia respectively, and the sum of those for the filler and CCl 2 F 2  being 17-25psia, the filler being substantially wholly in the gaseous state at the liquefaction temperature of CCl 2 F 2  at a corresponding pressure within the range 3-20psia. A current transformer insulated by such a mixture comprises a primary formed by a coaxial stud 20 and tube 21, joined at one end by a toroidal conducting element 22, and led through a porcelain cylinder 16 to terminals 18-20. A toroidal secondary winding 30 is partially enclosed by a shield 32 earthed through a metallic support 34 and casing 10. A method of filling the housing 10, 16 which does not involve handling SF 6  in the factory comprises the following stages: After complete assembly of the transformer within the housing, the housing is filled with an air-CCl 2 F 2  mixture at 65psia and leak-tested with preferably a halogen detector. The mixture is removed and the pressure reduced to 1000 microns of mercury to remove water vapour then a mixture of 40% nitrogen and 60% CCl 2 F 2  by volume is added to raise the pressure to 35psia (or 65psia or more if required). A high potential test is then made (spark-overs being indicated by a local carbon deposit) and the pressure increased to field conditions (e.g. 65psia) when a further leaktest is made. The pressure is reduced to 20psia by removal of some of the mixture whereupon the partial pressures are 8psia for nitrogen and 12psia for CCl 2 F 2 . This pressure (i.e. above atmospheric) is maintained during transit for observation of leaks and the SF 6  required is added on site. A preferred mixture has partial pressures of 8psia for nitrogen, 12psia for CCl 2 F 2  and 45psia for SF 6 .
Patent GB-562504-A (GB)
Title: Improvements in or relating to upsetting mechanism
IPC: B21J9/06
Filed: 1942-08-07
Abstract: 562,504. Forging. WILCOX, R. L., and WATERBURY FARREL FOUNDRY & MACHINE CO. Aug. 7, 1942, No. 11054. [Class 83 (iv)] Ejector mechanism is provided for the punch of an upsetting machine to ensure that the work remains in the die, the mechanism being positively operated during the first part of the return stroke. The mechanism is shown as applied to an upsetting machine of the type described in Specification 562,237 and as applied to the two-stage upsetting of a blank to form an intermediate collar as described in Specification 562,503. The ejector mechanism is showu as applied to the punch for performing the first stage, the second punch having ejector mechanism as in the latter Specification. The ejector pin 22 of the punch is actuated by a bell-crank loaded by a spring rod 23 and given positive actuation through the end 34 of a lever pivoted at 29 and operated by a cam 39 on the side shaft 40. The transmission is through two sliding members 30 and 35 mounted in the upsetting slide and the frame respectively, the parts being situated, relatively to one another, in operative position during the last part of the heading and the first part of the return stroke, the slide 35 transmitting to the slide 30 through a plate 36 engaging a roller 37. The slide 30 has a return spring 33 and the lever 46 transmitting from the cam 39 to the slide 35 has a return spring 45. During the last part of the heading stroke, the plate 36 is advanced from a position just clear of the roller 37 to contact position and the cam 39 is then so shaped that during the first part of the return stroke the pin 22 is maintained stationary holding the work in the die 25. The contact edge of the plate 36 may be shaped as a cam to give this control or the cam control may be shared between the plate 36 and the cam 39.
Patent GB-1203183-A (GB)
Title: An annular self-locking wedge ring support assembly
IPC: G21C1/20
Filed: 1969-03-03
Abstract: 1,203,183. Clamps. ATOMIC ENERGY OF CADADA Ltd. 3 March, 1969 [3 June, 1968], No. 11150/69. Heading E2B. [Also in Division F2] An endless coil spring 14, spacing an outer calendria tube 15 from an inner pressure tube 12 of a nuclear reactor, is supported by an assembly comprising an outer endless ring 30 secured axially on the pressure tube by an inner ring 20 which is axially split at one or more circumferential locations and is provided with a tapered peripheral surface in wedging engagement with a corresponding tapered bore of the endless ring, inter-engaging saw-toothed locking formations 24, 34 being formed on said surface and bore whereby axial separation of the rings by axial forces is resisted. Said formations may be of annular or spiral form and continuous or discontinuous. In a further modification, Fig. 4 (not shown), the inner ring bore is serrated. The rings may be of stainless steel, zirconium or aluminium alloys. The taper angle of the ring is in the range of 2‹ to 20‹, preferably 4‹.
Patent GB-1025768-A (GB)
Title: Synchronising system for direct current electric motors
Inventor: GODWIN DEREK WOODHOUSE
IPC: H02P7/26
Filed: 1963-03-21
Abstract: 1,025,768. Automatic speed controL MINISTER OF POWER. April 7,1964 [March 21, 1963], No. 11234/63. Heading G3R. [Also in Division H2] Thyratrons 1, 2, form a bi-stable switch controlling supplementary current to motor 3, this current being switched on by the firing of thyratron 2 at each pulse from a tuning fork. The current continues to flow through thyratron 2 until the circuit is re-set by a pulse from coil 11 which causes re-striking of thyratron 1. This occurs when a motor-driven magnet 9 passes pole-piece 10. The duration of the speed-controlling pulse supplied to the motor is thus determined by the phase displacement of the pulses applied to the grids of the thyratrons. The mean potential at terminal A is directly proportional to the firing-period of the thyratron 2 which is dependent upon the phase displacement, the voltage on the control grid of pentode 26 being dependent upon the rate of change of phase angle. The pentode 26 passes, through the motor, a current which opposes any movement of phase to reduce hunting.
Patent GB-917853-A (GB)
Title: Improvements in or relating to information storage apparatus
Inventor: DAVIE JULIAN ALBERT WALTER
IPC: G06F5/08
Filed: 1959-04-03
Abstract: 917,853. Stepping registers. INTERNATIONAL COMPUTERS & TABULATORS Ltd. March 11, 1960 [April 3, 1959], No. 11385/59. Class 106 (1). In a stepping register transfer means 6 to 9 link the storage stages 1 to 3 and means are provided that operate the transfer means to advance newly-entered information to the last stage not already storing information. As shown, each stage stores an item of information in parallel form and comprises a number of bi-stable devices, such as magnetic cores or the flip-flops described in Specification 738,269, each device being connected through a transfer device to the corresponding device of the next stage. A pulse from input clock 22 transfers information from input to the first storage stage, register 1, and sets a monitor flip-flop 11. The " set " output of flip-flop 11 is applied to AND circuit 14 together with the " unset " output of the monitor flip-flop 12 of register 2. If register 2 is not storing information, flip-flop 12 is unset, and the resultant output of AND circuit 14 is applied through delay 15 to operate transfer device 7, to unset flip-flop 11 and to set flip-flop 12. The information is thus stepped from register to register until a set monitor flip-flop is encountered. If the registers require to be reset, if for example they include flip-flops of the kind described in Specification 832,509, the arrangement of Fig. 2 is used which includes an additional delay 19 in series with delay 15 and from which the output is applied to reset the register 1 and unset flip-flop 11.
Patent GB-117166-A (GB)
Title: Improvements in and relating to Electric Transforming and Converting Apparatus.
IPC: H02K47/08
Filed: 1917-08-08
Abstract: 117,166. British Thomson - Houston Co., (General Electric Co.). Aug. 8, 1917. Rotary converters; cores.-The armature winding 8 of a rotary converter and the primary and secondary windings 11, 12 of a step-down transformer are carried by a single rotating core-structure 6. The winding 8 is placed in slots 7 and is connected to a commutator 16. The primary transformer winding 11 is placed in slots 10 and is preferably made up of six phase-windings, three of which are star-connected and the other three mesh-connected, the two sets of windings being connected in parallel to collecting rings 13. The secondary transformer winding 12 is situated in slots 9 and consists of two separate coils for each primary phase-winding, the coils being connected to points of the armature winding 8. The windings 11, 12 may be made up of form-wound coils or may be constituted by bundles of straight conductor bars. The core 6 may be built up of two concentric series of plates, dovetailed or otherwise secured together.
Patent GB-1213393-A (GB)
Title: Sterile package with integral tear strip
Inventor: KUSTER JOHN JACOB
IPC: B65D75/36
Filed: 1968-03-08
Abstract: 1,213,393. Sterilized packages. JOHNSON & JOHNSON. 8 March, 1968 [8 March, 1967], No. 11411/68. Heading B8C. A sterilized surgical package comprises a polyethylene blister 2a heat sealed at 21a to a paperboard panel 3a having a tear strip 8a formed by two parallel score lines 6a, 7a cut half way through the panel from the exterior surface and by one or two parallel score lines 4a, 5a cut half way through the panel from the interior surface. A transverse score line 27 is cut into the interior surface of the panel inwardly of the heat sealed area 21a and serves to terminate incorrect de-lamination of the tear strip.
Patent GB-467456-A (GB)
Title: Differential mechanism
Filed: 1936-04-21
Abstract: 467,456. Differential gearing. FREDERICKSON, C. E. April 21, 1936, No. 11412. [Class 80 (ii)] A gearless differential comprises a driving double dog-clutch ring 25 and two similar driven dog-clutch rings 10 which are adapted to be separated to allow differential action by interengaging cams 11. The driving-ring is as shown in Figs. 15 and 18, and its clutch dogs 26 are preferably conical and undercut at the driving faces. One of the driven rings 10 is shown in Figs. 20 and 21. The conical clutch dogs are at 14; these are splined at 6 to engage bosses 4 on the part axles 1, 2, Fig. 15 ; and the cams are shown at 11 which project through the circular opening 30 of the ring 25 and intermesh with the cams 11 of the other driven ring 10. The driven rings 10 are kept from separating too far when one of them is overrunning by cross keys 34 with spring- urged sleeves 53 on their ends. A form is described in which the separating cams project at intervals through windows in a driving disc.
Patent GB-1494741-A (GB)
Title: Fog-inhibitors for silver halide photography
IPC: G03C1/34
Filed: 1974-03-14
Abstract: 1494741 Fog inhibitor AGFA-GEVAERT 27 Feb 1975 [14 March 1974] 11462/74 Heading G2C A photographic material comprises a support and at least one silver halide emulsion layer in which material there has been incorporated, per mole of silver halide, from about 0À1 to 10 millimoles of a (silver salt-forming or silver complexforming) fog inhibitor corresponding to the general formula wherein X is a hydroxy or carboxy group, an alkali metal or ammonium substituted hydroxy or carboxy group, or (as a substituent) an azole heterocycle, n is 1 to 4 and R stands for hydrogen or a member selected from alkyl, alkoxy, fused on benzene, aryl, halogen, alkoxycarbonyl, sulpho in acid or salt form or a group listed in the above definition of X. The compounds contain two complex- or salt-forming groups for silver, the iodine atom being one and group X the other. "Azole" is used to denote a five-membered heterocycle containing a nitrogen atom and one or more other hetero atoms. X in the above Formula may represent imidazole, benzimidazole, naphthimidazole, pyrazole, triazole, tetrazole or indazole. The anti-foggant may be in the emulsion or other layer e.g. an anti-stress or intermediate layer.
Patent GB-1379711-A (GB)
Title: An agricultural vehicle
IPC: A01D90/08
Filed: 1973-03-09
Abstract: 1379711 Bale transporting and storing vehicle; endless pusher conveyers HEINZ KEMPER GmbH [trading as WILHELM KEMPER KG] 9 March 1973 [17 March 1972 21 Oct 1972 (2)] 11540/73 Headings B8E and B8A An agricultural trailer 1 or other vehicle for picking up, storing, transporting, and delivering bales comprises a pick-up device 3 and a magazine section 2 through which a conveyer 21 passes in a convoluted path to a delivery point 5. The pick-up mechanism 3 has a conveyer belt 11 driven through a belt drive 37 from the main drive shaft 34 and lateral guides 13, 14 with a retainer 15 which picks up bales from the ground and conveys them to the magazine conveyer at 4 turning them to the desired orientation as required. The conveyer 21 has bale engaging spikes and follows a path indicated by arrows a through the magazine and has a return path c. As shown, Fig. 3, the path a rises to the next level along the longest side but other arrangements are shown wherein the rise takes place along the shorter transverse side or continuously in a spiral path. In some of these examples the bales are differently orientated. The conveyer 21 is driven in steps through a clutch 39 and chain drive 32, Fig. 15, from the shaft 34 by means of a star wheel 30. A control mechanism 40 for engagement of the clutch 39 has a probe 41 which is deflected by a bale passing through the pick-up mechanism to engage the clutch to advance the conveyer 21 in steps corresponding to the length of the bales being picked up so that they are as closely spaced as possible to fill the magazine 2. When the magazine is full the bales are delivered over rails 43, Fig. 1, to a shoot 44 which may have rollers and is preferably pivoted on horizontal and vertical axes to deliver the bales to the desired position. Alternatively the belt 21 may be reversed and delivery may be at the entry point 4. During delivery the conveyer 21 is driven continuously by moving the control 40 to engage the clutch continuously. In the embodiment (Fig. 14, not shown) in which the bales follow a continuous rising spiral course the pusher means engage behind each bale and are attached to a continuous chain but extended through the total height of the magazine so that the bales start at the bottom of the pusher and rise up it as they rise up the spiral. In another embodiment, Fig. 19 (not shown) the lateral guides are not provided and the bales are held between two suitably spaced conveyers having pushers engaging the bales at the top and bottom.
Patent GB-1526186-A (GB)
Title: Device for testing whether a tip of a hollow needle inserted in a patient's body is in a region of sub-or supra-atmospheric pressure
IPC: A61B17/34
Filed: 1977-03-18
Abstract: 1526186 Device for indicating correct penetration of syringe needle KENDALL CO 18 March 1977 [28 April 1976] 11618/77 Heading A5K A device for determining whether a syringe needle has been inserted so as to penetrate into the epidural or dural space by indicating whether the needle communicates with a sub or supra ambient pressure region comprises a body having a cavity 60 communicating with a passageway 74, 76 that can be brought into communication with the needle interior by attachment via tubular projection 68. A test liquid deposited in the cavity 60 either fall or rises according to whether the needle communicates with the subatmospheric epidural space or the supra atmospheric dural space.
Patent GB-234624-A (GB)
Title: Improvements in mattress or bedstead frames
IPC: F16B12/56
Filed: 1924-05-12
Abstract: 234,624. Bryant & Sons, Ltd., C., Hardiman, A. W., and Hiley, C. May 12, 1924. Mattresses.-Means for detachably connecting the side and end members of a bedstead or mattress frame comprise a projection on the one part adapted to engage within a recess or opening in the other part and to be interlocked with said other part by partial rotation of one part relatively to the other. The side bar 3 is shown carrying a projection 8 with an extension 9 adapted to enter the opening 10 in the end bar 4. When the end bar 4 is partially rotated, the extension 9 is engaged behind the overhanging portion 12, rotation of the bar 4 being limited by the side of the opening 10.
Patent GB-458009-A (GB)
Title: Improvements in or relating to the cylinder heads of internal combustion engines
IPC: F02F1/04
Filed: 1936-04-23
Abstract: 458,009. Cylinders. SOC. DES. MOTEURS SALMSON, 68, Rue Pierre Charron, Paris. April 23, 1936, No. 11646. Convention date, May 23, 1935. [Class 7 (ii)] A cylinder head has a single exhaust valve 3 and two symmetrically-arranged admission valves 19, the corresponding passages 14, 24 being arranged directly away from the cylinder head and transverse to the cylinder axis, the effect of the cooling fluid, flowing across the head, being thus enhanced. In the air cooled engine shown transverse cooling ribs are extended over the casings 8, 20 which carry the cam shafts. In a multicylinder in-line engine, individual heads are connected by ribs 25, 26, 27 and by casings rounnd the cam shafts, the latter, being provided with covers 13, increasing the rigidity of the head. In a W-engine, Fig. 5, two rows B, C of cylinders are arranged symmetrically with their exhaust valves adjacent and the third row A is separated by a partition 35 ; the cooling air flow is as shown by the arrows, the exit from the row B being provided for by a port at the rear leading to a conduit 36. The exhaust pipes pass through the cowling 15, by sleeves 18.
Patent GB-352545-A (GB)
Title: Improvements in or relating to means for mounting railway and like rails and securing them to metal sleepers or the like
IPC: E01B9/32
Filed: 1930-04-12
Abstract: 352,545. Securing railway rails to sleepers. CLOUGH, F., 32, West Terrace, North Ormesby, Middlesbrough, MOORE, A. E., Moorside, Jubilee Road, Eston, Yorkshire, and ROBINSON, A., Wheatfield Villa, Brockholes, near Huddersfield. April 12, 1930, No. 11650. [Class 104, (ii).] Rails are secured to metal sleepers 8 by pairs of clips 16, 17, of which the inner one embraces the chair base 13 and sleeper, while the other grips the sleeper only. A wedge 18 is driven between them, and this wedge may be anchored to the clip 16 by a pin 19 inserted in adjacent semi-circular recesses in the wedge and clip. In the case of a flanged rail, the clip 16 grips the flange and sleeper, the chair being omitted. Reference has been directed by the Comptroller to Specification 7975/91, [Class 104, Railways &c.].
Patent GB-683834-A (GB)
Title: Improvements relating to conveyor worms
IPC: B65G33/00
Filed: 1950-05-11
Abstract: 683,834. Making worm conveyers. BRAUNSCHWEIGISCHE MASCHINENBAANSTALT. May 11, 1950 [May 11, 1949], No. 11809/50. Class 83 (ii). The worm of a worm conveyer comprises a number of plane plates arranged in helical form around a rotary shaft. The worm conveyer consists of four triangular carrying plates DHE, AEF, BFG and CGH, and of four sector-shaped carried plates ABF, BCG, CDH and DAE. The carrying plates are welded to a rotary shaft at the points E, F, G, H which lie on the inner helical line of an archimedean worm, the pitch of which may be varied and the carried plates are fixed to the carrying plates. The carrying plates may be quadrangular (Fig. 2a). The pitch of the worm may be arranged so that in the spaces between the convolutions of the worm one or more rod-like retaining or blocking elements may be fixed around the inner periphery of the conveyer casing. The edges of the plates at the entry to the worm have a radius of 2-3 centimetres. Overflow or backpressure openings II (Fig. 4b) may be provided in the carrying or carried plates.