baber/WOPTO huggingface dataset:
Patent GB-711802-A (GB)
Title: Improvements in and relating to electric circuit breakers
IPC: H01H73/30
Filed: 1951-05-28
Abstract: 711,802. Automatic circuit-breakers. MECHANICAL PRODUCTS, Inc. May 28, 1951 [June 2, 1950], No. 12515/51. Class 38(5) A circuit-breaker which is trip-free for overload currents above a certain value but which can be held closed for overload currents beneath that value and which embodies certain features of the breaker disclosed in Specification 669,656, comprises a U-shaped bimetallic latch 34 connected by lateral extensions 32 to movable contactcarrying arms 30 and to a bimetallic ambient temperature compensating finger assembly 36, this assembly forming the subject of Specification 709,717. The breaker is normally held in the closed condition (Fig. 1) against the action of springs 52 connected to ears 34a on the latch 34 by the edge 34<SP>1</SP> of the latch 34 engaging ledges 50 on spaced blocks 44. The blocks 44 form part of a fixed structure 40 in which a switch operating plunger 42 is slidable, the plunger carrying a projection 48 in a slot 46 between the blocks. The end of the  projection 48 lies substantially flush with the ledges 50 and co-operates with the edge of a depression 54 formed in the latch edge 34<SP>1</SP>, there being normally a small gap between the projection and depression. A T-shaped block 56 slidably mounted within the enlarged forked ends 58 of the plunger 42 overlies the inner ends of the arms 30 and has a recess 66 receiving a compression spring 55. On overload with the plunger 42 left free, the latch edge 34<SP>1</SP> leaves the ledges 50 and the breaker opens under the action of the springs 52, the latch 34 and finger assembly 36 sliding over opposite sides of the blocks 44 and being arrested by arms 30 engaging stops 57, the plunger 42 being outwardly projected by the spring 55. Depression of the plunger 42 for resetting first moves the plunger relatively to the unit 30, 32, 34, 36 until the gap between the projection 48 and edge of the depression 54 is taken up, whereupon the projection 48 moves the unit and the latch 34 springs back on to the ledges 50. Owing to the taking up of the aforementioned gap the T-shaped block part 60 is clear of the arms 30 and thus the latch is free from influence by the spring 55 during resetting. On overloads up to certain value, if the plunger is held depressed, the latch 34 leaves the ledges 50 but is immediately arrested by the depression 54 engaging the projection 48 and the contacts 22 remain closed. On overloads above that value the latch depression 54 moves clear of the projection 48 and holding the plunger 42 cannot maintain the breaker closed. On subsequent release of the plunger the projection 48 is moved by the spring 55 beneath the latch 34 by flexing the latter and is thus repositioned opposite the depression 54 in readiness for re-closing the breaker. The breaker may be manually opened by pulling the plunger 42 so that the enlarged end 58 deflects the latch 34 to disengage the ledges 50.
Patent GB-611272-A (GB)
Title: Fluid operated vise
IPC: B25B1/18
Filed: 1946-04-26
Abstract: 611,272. Vices. SHARPE, J. C. April 26, 1946, No. 12588. [Class 61 (ii)] A fluid-pressure vice comprises a body 6 carrying the fixed jaw 7 and casing 9 in which is slidably received the stem 11 of the movable jaw 10, the stem 11 containing a fluid-pressure tube 12 coacting with an immovable piston 22 on the end of a hollow rod 20 passing through a stuffing-box 19 and cap 18 fixed on the end of the stem 11. Pressure fluid is supplied from a hand pump through pipes 28, 27 to the hollow rod 20 through ducts 24 under piston 22 and pressing on cap 18 moves jaw 10 to closed position and fluid from a second hand pump passing through pipe 37 and plug 13 into tube 12 forces the movable jaw open. The supply pipe 28 has a swivel joint 28<SP>1</SP> and the body 6 is rotatable on the base-plate 2.
Patent GB-506694-A (GB)
Title: Improvements relating to apparatus for playing games
IPC: A63F9/14
Filed: 1938-04-27
Abstract: 506,694. Mechanical racing games. LIPMAN, S. M. April 27, 1938, No. 12589. [Class 132 (ii)] A mechanical racing game or the like in which figures of animals or objects are advanced along tracks by players is provided with electrical means for giving the required impulses at right-angles to the tracks comprising cores n of electromagnets energized by switches controlled by the players and adapted to tap the guide wires i or like tracks. The cores drop on the wires i when the current is cut off and the figure f advancos by tilting and recovery without slipping back on the base k. A lamp s may be lit at the end of the path by a bridge-piece u and pairs of contacts v. The wire may be tensioned by a wing-nut m. The switches comprise fixed contact strips p and contacts q in drums r rotated by the players. The base of the figures may have a cork strip k to prevent slipping.
Patent GB-588764-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23D11/10
Filed: 1944-07-03
Abstract: 588,764. Liquid-fuel burners. RAMSEY, A. R. J. (Breault, D. C.). July 3, 1944, No. 12638. [Class 75 (i)] A liquid-fuel burner comprises a housing 10 surrounding a tube 12 and a valve 14, the valve 14 being formed with mixing chamber 59 formed with fuel admission orifices 60, compressed air admission orifices 64, and air and fuel mixture discharge orifices 68. The fuel passes to the orifices 60 through a port 35 in the housing 10, an annular chamber 34 around the tube 12, and ports 58 in the tube 12. The air passes to the orifices 64 through a port 28 in the housing 10, a chamber 24 formed between the housing 10 and a cap 20 and ports 62 in the housing 10. The fuel and air streams enter the chamber 59 in opposite directions and the mixed fuel and air pass through the air stream to the orifices 64 which register with discharge orifices 66 in the nose 16 of the housing. The valve 14 may be turned by a lever 50 to adjust simultaneously the air and fuel admission and discharge from the chamber 59. The bushing 12 is turnable in the housing 10 by a lever insertable in a slot 40 in an element 36 secured to its rear end and is held in its adjustable position by a spring 30. To facilitate the ignition of heavy oil an element 52 containing a steam passage and an electric heating coil 54 is secured to the casing 10. Atmospheric air is supplied to the flame through apertures 72 in a member 70 arranged in front of the cap 20. The burner may be mounted in a housing 86 formed at its rear end 90 with air admission apertures controlled by blades 94 secured to the valve 14. The compressed air supplied to the burner may pass through a pressure chamber 78 and a coil 74 heated by the flame.
Patent GB-595381-A (GB)
Title: Improvements in lawn mowers and the like
IPC: A01D69/02
Filed: 1945-05-22
Abstract: 595,381. Lawn-mowers. WELLER, J. May 22, 1945, Nos. 12709/45, 6069/46 and 15139/46. [Class 6 (ii)] A lawn-mower of the rotary cutter and ledger blade type is characterised in that the rotary cutter is driven by an internal electric motor and is supported by a land roller located rearwardly of the said rotary cutter. The cutter A carrying field magnets U rotates on a stationary spindle B upon which is mounted a fixed armature T. The frame of the machine includes side plates C interconnected by tie rods F, G and having rearward extensions which carry a trailer roller D. Pivoted upon the fixed spindle B is a subsidiary frame formed by the main handles N and downwardlydepending arms L which carry a pair of coaxial rollers J preferably interchangeable with the rear roller D. The subsidiary frame may be swung into the dotted position of Fig. 1 to raise the cutter clear of the ground. The working height is determined by contact between the arms L and adjustable blocks O. An electric cable 7 from an external power source reaches the machine through a hollow arm 8 swingable from side to side of the machine whence it passes through the hollow tubular handles N to the armature T. A cable drum (not shown) may be mounted on the handles in lieu of the arm 8. The grass box 12 is mounted at the rear of the machine on rubber stops 13, a gap being left between the cutter and the forward end of the grass-box. To vary the separation between the rotary cutter and the ledger blade 3, the spindle B is mounted upon eccentric collars 2 provided with adjusting levers.
Patent GB-861373-A (GB)
Title: Process for partially oxidising organic compounds
IPC: C07C47/00
Filed: 1959-04-15
Abstract: Oxygenated organic compounds and products comprising such compounds are produced by partially oxidizing an organic compound having at least one carbon to carbon linkage in vapour phase at temperatures of 300 DEG  to 900 DEG  F. and pressures of from 0-300 p.s.i.g. in the absence of a catalyst, with an oxygen-containing gas in the presence of from 0.05 to 8 volume per cent ozone based on oxygen.  The oxygen may range from 0.05 to 2 mols. of 02 per mol. of feed, and may be employed as pure oxygen, air or diluted with nitrogen.  The feedstocks include aliphatic, or cycloaliphatic saturated hydrocarbons, aromatic hydrocarbons, alkylated aromatic hydrocarbons, olefinic and cyclo-olefinic compounds, or acetylenes and may contain various radicals having little effect on the reactivity of the compound, e.g. carboxy, hydroxy, keto, nitrile, nitroso, halogen and inorganic radicals such as sulphate, sulphonate, phosphonate and phosphate.  The major products of the partial oxidation are cyclic ethers, but with certain feedstocks olefines are produced, e.g. styrene from ethylbenzene, and small amounts of carbonyls and ketones are also formed.  Examples describe the partial oxidation of n-hexane, n-hexene-1 and chloropentane.
Patent GB-331308-A (GB)
Title: Improvements in or relating to treating beet juice for the purpose of manufacturing sugar
IPC: C13B20/02
Filed: 1929-04-24
Abstract: 331,308. Friedrich, J. April 24, 1929. Purifying saccharine liquids. - Beet juice is purified by heating it under pressure of 1-2¢ atmospheres, which correspond to temperatures up to 138‹ C., for 15 minutes with the addition of about 0.15 per cent of lime calculated with reference to the beet. The lime is removed by gaseous carbon dioxide or oxalic acid.
Patent GB-353517-A (GB)
Title: Improvements in or relating to antenna systems
IPC: H01Q3/01
Filed: 1930-04-25
Abstract: 353,517. Directive aerials. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Assignees of Bruce, E. ; 27, Buena Place, Red Bank, New Jersey, U.S.A.) April 25, 1930, No. 12836. Convention date, Oct. 11, 1929. [Class 40 (v).] A directive aerial system comprises one or more antennae tilted forward at an angle, and of a length equal to half the working wavelength plus the projection of the antenna on the path of the wave. As shown in Fig. 3 the antenna A is threequarters of a wavelength long, its horizontal projection being a quarter wavelength. In Fig. 5 two wavelength antennµ 10, 11 are arranged to form an inverted V, the horizontal projection of each being half a wavelength. The receiver or transmitter is connected through a transformer 12. To make the system unidirectional a reflector 16, Fig. 7, is arranged a quarter wavelength behind the main aerial 17, the direction of the wave being shown at 18. The reflector is grounded through a terminal impedance 20, 21. Each antenna may be several wavelengths long, provided that the horizontal projection is shorter by half a wavelength. Fig. 9 shows a method of mounting the aerial 24 on a circular track 25 so that it can be swung into any desired vertical plane. In this case a terminal impedance 29 gives the system a unidirectional characteristic. Fig. 10 shows a method of adjusting the degree of tilt by moving one end of the antenna 34 along an horizontal track 32, a pulley 35 and counterweight 37 keeping each limit symmetrical. Fig. 12 shows a broadside arrangement of main antennµ 48 backed by a similar row of reflectors 50. The antennae 48 are connected to a transformer 53 whilst the reflectors are grounded through a terminal impedance 54, 55. The paths from the various aerial sections are made of equal length. An end-on aerial system is also described. As the optimum angle of tilt is practically constant for antennµ over five wavelengths long, the same aerial can be used over a comparatively-wide frequency range. The system is however readily convertible from maximum to minimum response along a given direction either horizontal or vertical. The aerial system has a high angle of response, which is favourable for the reduction of certain types of static and for minimizing fading. Specifications 272,117 and 307,446, [both in Class 40 (v), Wireless signalling &c.], are referred to.
Patent GB-841415-A (GB)
Title: Improvements in or relating to barbed wire
IPC: B21F25/00
Filed: 1958-04-23
Abstract: 841,415. Barbed wire. KELLER & KNAPPICH G. m.b.H. April 23, 1958 [May 2, 1957], No. 12848/58. Class 45. [Also in Group X] Barbed wire is formed from a flat metal strip 1 recessed at intervals along its length from opposite sides to form barbs 2 and attached to a supporting wire 3 by bending sections 4 over the wire. A wire entanglement comprising a roll of barbed wire is also described.
Patent GB-474808-A (GB)
Title: Improvements in electrical water heaters
IPC: F24H1/10
Filed: 1936-05-07
Abstract: 474,808. Valve accessories. BURSLEM, R. May 7, 1936, No. 12866. [Class 135] [Also in Groups XI and XIII] The spindle of the inlet valve g of an electric water heater is fitted with an adjustable collar provided with short and long arms q<1>, q2 for operating the heater switch rl.
Patent GB-640344-A (GB)
Title: Improvements in high or ultra-high frequency electric circuit arrangements
Inventor: DAVIS NORMAN EUSTACE
IPC: H03F3/54
Filed: 1945-05-24
Abstract: 640,344. Electric resonators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. - May 24, 1945, No. 13061. [Class 40 (viii)] [Also in Group XL (a)] High-frequency apparatus comprises a rectangular box resonator whose electrical length and breadth are respectively one wave-length and half a wave-length and a plurality of valves having electrodes in the faces of the box, tuning means being provided. In the con. struction shown in Figs. 3a and 3b three pairs of valves V and VI are used and two tuning capacitors tc are provided comprising two conductive plates connected to the upper major face of the box A and adjustable towards or away from the lower major face of the box. A modification is shown in Fig. 4a comprising an upper resonator Au and a lower resonator Al. The resonant frequencies can be varied by adjusting the width of the box or boxes, for example as shown in Fig. 5, by forming the sides t and t1 as troughs which can be slid in or out. The limbs of the sides t and t1 may make continuous metallic contact with the major faces of the boxes or they may effect the electrical closure of their respective upper and lower boxes by non-metallic contact and appropriate proportioning of the side members, i.e. they may be capacitively coupled. Glass side walls gw sealed to the remaining walls and surfaces may be provided.
Patent GB-1452182-A (GB)
Title: Crown compounds and processes for their preparation
IPC: C07D321/12
Filed: 1974-03-25
Abstract: 1452182 Modified silica UNIVERSITY OF CALIFORNIA REGENTS OF 25 March 1974 13123/74 Heading C1A [Also in Divisions C2 and C3] A modified silica is made by reacting silica with a compound of the formula (XII) where y<SP>1</SP> is Si(CH 3 ) 2 Cl and reacting the product with methanol, to replace remaining Cl atoms by CH 3 O groups. The compounds (XII) can be obtained in optically active forms and the resulting modified silicas can be used to resolve racemic mixtures of organic compounds, e.g. amino acids with which they form complexes.
Patent GB-419035-A (GB)
Title: Improvements in and relating to electromagnetic relays
IPC: H01H51/22
Filed: 1934-05-01
Abstract: 419,035. Electromagnetic switches. GENERAL RAILWAY SIGNAL CO., Rochester, New York, U.S.A.-(Assignees of Field, O. S. ; 473, Seneca Parkway, Rochester, New York, U.S.A.) May 1, 1934, No. 13158. Convention date, May 24, 1933. [Class 38 (v).] An electromagnetically-operated tractive relay of the polar-neutral type has its neutral armature or armatures acted upon by a magnet system which is only rendered effective to cause the neutral armature or armatures to move from the retracted to the attracted position when the polar armature occupies that one of its two operated positions which corresponds to the polarity with which the relay is energized. As shown the relay comprises parallel cores 3, 4, 5 united by a yoke 6 at their upper ends. The central core 4 is a permanent magnet or permanently energized electromagnet for magnetizing a polarized armature 13 pivoted at 14 and having its upper end movable between enlarged polepieces 7, 8 of the cores 3, 5 which carry sets of windings 9, 10 and 11, 12. The circuit of the windings 9, 10 is completed from a battery B through reversing contacts 16, 17 operated in conjunction with a railway switch TS by a switch machine SM and the polar armature is arranged to be swung to the right or left in accordance with the direction of current through these windings. Contacts 18, 19 control the direction of current from a battery B<2> to the coils 11, 12 and the normal directions of the currents in the two sets of coils are such as to assist each other so that their combined effects are arranged to be just sufficient to attract the non-polarized or neutral armature 18. If, however, the polarized armature, which is arranged to be operable on reversal of the current in coils 9, 10 by the difference in flux produced by these coils and the coils 9, 10, fail to operate when the current reverses on changing over of the switch TS, the reduced flux is not sufficient to attract the armature 18 and the controlled circuits, which may include series connected contacts of both armatures, are not closed. As soon as the polarized armature does respond, however, the reversal of current in coils 11, 12 enables the armature 15 to be attracted and normal working is resumed. Thus the neutral armature is released at each change-over of the contacts 16, 17 and is only attracted again if the polarized armature has correctly responded to the changeover. In a modified arrangement, the current in the auxiliary set of windings is controlled by oppositely connected rectifiers which are switched in alternately by the polarized armature. Specification 318,916, [Class 38 (v)], is referred to.
Patent GB-437616-A (GB)
Title: Improvements in or relating to pyrophoric lighters
IPC: F23Q2/34
Filed: 1934-05-01
Abstract: 437,616. Frictional pocket igniters. COLIBRI LIGHTERS, Ltd., 105, Wood Street, Cheapside, London. May 1, 1934, No. 13168. Convention date, Oct. 12, 1933. [Class 75 (iii)] A fuel container 1 is provided with a removable striking element 2 comprising tubes 3, 5, carrying a wick or the like 4 and a friction - wheel 7 and flint respectively, the wheel being rotated by rubbing it along a rubber or other surface 11 on the container 1 for igniting the wick. The tube 5 may be composed of resilient material so that the wheel 7 approaches the wick when rubbed along the surface 11. The tubes 3, 5 are closed by screw-caps 19, 18, the cap 18 carrying the flintspring. As shown, the container 1 is provided with two sockets for receiving the tubes 3, 5. The socket 12 for the tube 5 is closed at the bottom, the other socket for the tube 3 being open at the bottom and preferably closed at the top during storage by a metal or other seal 15 adapted to be broken or pierced by the pointed end 16 of the tube 3. Alternatively, the container may have a single socket for the tube 3, the tube 5 being arranged to lie along the outside of the container. The fuel may be contained in a breakable ampoule or capsule within the container.
Patent GB-237541-A (GB)
Title: An improved coupling device for combined electric starters and dynamos for automobile engines
IPC: F02N15/02
Filed: 1925-05-20
Abstract: 237,541. Soc. Anon. pour l'Equipement Electrique des Vehicules. Sept. 15, 1924, [Convention date]. Turning-gear. - In motor-cars in which the lighting dynamo is used for starting the engine through reduction gearing, a member 21 rotating with the engine shaft carries planet pinions 5 in gear with teeth 4 on the shaft 1 of the dynamo, and' a screwed sleeve 6 mounted loosely on the spindle 7 of each planet pinion carries a pinion 9 moving axially into or out of gear with a fixed toothed ring 10. As shown, each pinion 5 is fixed on the sleeve 6, and the spindle 7 is secured at its ends to the member 21 and to a disc 8 connected by a free-wheel clutch 16 and a friction ring 14 to a disc 12 slidingly keyed on the dynamo shaft 1. Springs 22 normally hold the sleeves 6 in contact with the disc 8. At starting, the dynamo is driven as a motor and the disc 12 rotates freely on the disc 8. The pinions 5 and sleeves 6 are driven from the teeth 4, the pinions 9 move axially into gear with' the ring 10, and into contact with the pinions 5, and the members 21, 3 connected to the engine are driven at reduced speed. When the engine starts, the increased speed of the members 3, 21 causes axial movement of the pinions 9 out of gear with the ring 10 and the dynamo is driven at engine speed through the members 3, 21, 8, the free-wheel 16, friction ring 14, and disc 12. If the engine turns backwards, damage is prevented by the slipping of the friction ring. For starting by hand, the shaft 1 may be displaced axially against a spring 20 to bring clutch teeth 18, 19 into engagement.
Patent GB-962359-A (GB)
Title: Semi-micro analysis device
IPC: B01L5/04
Filed: 1962-04-05
Abstract: 962,359. Laboratory apparatus; separating funnels. R. A. GILHOOLEY. April 4, 1963 [April 5, 1962], No. 13169/62. Heading B1X. A device for use in semi-micro analysis as a gas absorber or separating funnel comprises a bulb having at least one exit tube and a capillary tube diametrically opposite said exit tube, and a rod slideably mounted in said exit tube having a tip adapted to seat in the internal opening of the capillary tube. The device is preferably made of glass. As shown in Fig. 2, the bulb may be of generally cylindrical shape and the exit tube flared at the top. The rod may have vanes to align it in the exit tube. Alternatively, as shown in Fig. 3, the rod may be aligned by means of a hollow cylindrical portion which has the advantage that when a film of liquid is present between said portion and the exit tube, gas pressure to cause bubbling of gas from capillary tube is reduced to a minimum. Side arm 52 facilitates filling the device with a liquid. An absorbent hemispherical cap for example built up from discs of felt through which the exit tube passes may be fitted over the bulb to cool the device by rapid evaporation of a volatile liquid absorbed in said cap.
Patent GB-750553-A (GB)
Title: Improvements in or relating to rotatable hooks for lock stitch sewing machines
IPC: D05B57/14
Filed: 1954-05-06
Abstract: 750,553. Sewing-machines. PFAFF AKT.- GES., G. M. May 6, 1954 [May 13, 1953], No. 13176/54. Class 112. In a rotary hook a removable gib 6, which is adapted to provide part of the wall of the bobbin raceway 4 in the hook body, is flattened for the major portion of its length and is angular in cross-section at its longitudinal ends. As shown, one end of the gib has an extension hinged at 7 to the hook body, and the other end of the gib has an extension 8. A leaf-spring 12 secured to the body by screws 13, 14 bears against an abutment 11 on the gib to urge the latter to the operative position, the radius of flexion of the spring being less than the radius of pivoting of the abutment about the hinge, whereby the spring will release the gib after a slight outward movement of the latter. In modifications the gib is provided at each end with extensions which engage similarly shaped recesses in the hook body, the gib being finally secured in position by a screw passing through one of the extensions.