baber/WOPTO huggingface dataset:
Patent GB-455308-A (GB)
Title: Improvements in and connected with secondary battery plates
IPC: H01M4/72
Filed: 1935-04-18
Abstract: 455,308. Batteries. PRESTON, K. H., c/o Stone & Co., Ltd., 1A, Cockspur Street, London. April 18, 1935, No. 12004. [Class 53] A pasted accumulator plate consists of a conducting diaphragm surrounded by a frame a and having on each face a number of inclined ribs h. The edges of the ribs may be turned up as shown at h<1> in Fig. 4, to retain the paste in position and the ribs on one side of the plate may be staggered with respect to those on the other side. The plate may be divided into panels by cross bars f, g, and additional bars n may be provided at the upper end of the plate. The diaphragm j may be of increasing thickness at the corner near the lug k. The side members of the frame a may be stepped as shown at i. The stepped formation may also be applied to the bar f. The frame a may be provided with projections m which form points from which gas is evolved more readily than from the pasted surfaces of the plates. The projections may be roughened or provided with numerous small pointed projections and they may also be provided on the bar f. Feet k<1> may be provided on the lower edge of the plate. Specification 183,920, [Class 53], is referred to.
Patent GB-442336-A (GB)
Title: Improvements in and relating to processes for bleaching wood pulp
IPC: D21C9/10
Filed: 1935-04-18
Abstract: In a process for bleaching wood pulp, e.g. ground or disintegrated wood by treatment with a hydrosulphite, the hydrosulphite is produced in the presence of the pulp to be bleached by the reaction upon one another of materials capable of producing it, e.g. zinc dust and sulphur dioxide.  The hydrosulphite may be produced by the reaction of zinc dust with sodium bisulphite, or of zinc dust with sodium bisulphite and sulphurous acid.  Mixtures of wood pulp with other fibrous materials may be treated, only the wood pulp being bleached in such cases.
Patent GB-1148838-A (GB)
Title: Improvements in or relating to electrical wall-mounting boxes
Inventor: GOODIER GEOFFREY THOMAS
IPC: H02G3/18
Filed: 1967-03-15
Abstract: 1,148,838. Mounting switches. VOLEX ELECTRICAL PRODUCTS Ltd. 29 March, 1968 [15 March, 1967], No. 12047/67. Heading H1N. A wall box moulded in plastics material is provided with two tapped holes C<SP>1</SP> and C<SP>2</SP> for securing an electric fitting such as a switch, the hole C<SP>2</SP> being provided in an insulating inverted T-shaped member G slidable between the side wall of the box, an upstanding rib F and an overhanging lug D to allow for alignment. The lug D has a slot M exposing the hole C<SP>2</SP> throughout the range of movement of member G between two end stops K. An aperture (L, Figs. 2 and 3, not shown) in the base of the box allows the member G to be inserted and manoeuvred into its operative position, covering the aperture. Oval knock-outs N are provided for cable entry, and knockouts O (one elongated) provide holes for screws securing the box to a supporting surface.
Patent GB-577527-A (GB)
Title: Improvements in or relating to blind-landing arrangements
IPC: G01S1/02
Filed: 1941-09-19
Abstract: 577,527. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., EARP, C. W., and SAMSON, G. G. Sept. 19, 1941, No. 12067. Addition to 577,276. [Class 40 (v)] In a blind-landing system for aircraft in which the glide-path is a line of constant fieldstrength ratio between two overlapping beams, the radiation patterns being so shaped with respect to each other that the glide path approaches the ground at a point remote from the origins of the fields, the antenna systems or origins of the two fields are both offset on the same side of the approach path, and one is more directive in a vertical plane than the other. The arrangement shown, comprises a horizontal dipole 1 with or without a reflector 2 mounted at a height of 4 to 6 wavelengths above ground and producing, as a result of ground reflection, a radiation pattern A lobed in a vertical plane. The second transmitter comprises a dipole with a parabolic reflector mounted close to the ground, which produces the pattern B having considerable directivity in a vertical plane. The curve B intersects only the lowest lobe of curve A and completely encloses all the other lobes up to an angle of 45 degrees, so avoiding the picking-up of a false course at normal heights for a landing approach. The vertical angle of the axis of the lobe B is 10 to 25 degrees. Both antennae are offset at one side of the glide path 6 defined by them, and have different horizontal directivities ; for example, for an offset of 200 yards or less the upper and lower dipoles are oriented so that the first lies in a plane almost perpendicular to the glide path, and the axis of the radiation pattern of the latter intersects the approach line at a point several hundred yards from the point of touch-down. The two antennµ are excited in a prescribed rhythm through a commutator device 7. By suitable adjustment of the offsetting and directivity of the antennµ the glide path is given the form of a hyperbola which diverges from a straight path and causes the aircraft to flatten out as the landing point is approached. For greater distances of offsetting other forms of one or both antennµ may be employed. For high frequencies of, say, 3000 Mc/sec., a horn radiator or a dipole with a parabolic reflector may be used for each radiation pattern.
Patent GB-990574-A (GB)
Title: A jacquard weaving mechanism
IPC: D03C3/02
Filed: 1961-04-04
Abstract: 990, 574. Weaving jacquards. A. LEHEMBRE & CIE. April 4, 1961 [April 4, 1960], No. 12075/61. Heading D1E. A jacquard mechanism for weaving face-toface fabrics utilising a double shed has a griffe frame 2 which takes hookd 12 to 15 from the lower warp sheet level to the upper sheet level, a griffe frame 3 having half the stroke of the frame 2 which takes respective hooks either from the bottom level to the centre level or from the centre level to the top level, a fixed bottom board 7, a movable bottom board 6 and a card mechanism 16 to 19 which is said to transfer the hooks from one griffe to the other to provide the pile threads which traverse from one fabric to the other and are subsequently cut to form pile.
Patent GB-252028-A (GB)
Title: Improvements in aluminium alloys and processes of making same
IPC: C22C21/12
Filed: 1926-05-11
Abstract: 252,028. Berthelemy, P., and Montby, H. de. May 11, 1925, [Convention date]. Annealing.-Rolled sheets of aluminium alloys containing, copper, manganese, ferro-silicon, tungsten, and magnesium, with or without cadmium or sodium, may be annealed at 450‹ C., quenched in hot water containing 5 per cent of glycerine, reheated to 450-475‹ C., and cooled slowly. Castings of the alloys may be artificially aged by heating for one hour at 204-250‹ C. and quenching in boiling water containing 5 per cent of glycerine, or by allowing them to cool in the furnace after annealing for one hour.
Patent GB-353451-A (GB)
Title: A coin freed apparatus for providing amusement
IPC: G07F17/34
Filed: 1930-04-17
Abstract: 353,451. Games of chance. BRYAN, W. E., London Road, Kegworth, Derby. April 17, 1930, No. 12143. [Class 132 (ii).] In a coin-freed amusement machine, a spindle B1, Fig. 1, is turned by a key to actuate a spring- controlled rack-bar D3, Fig. 2, which, during its return movement, engages an eccentrically-mounted ratchet wheel D5 and sets a notched disc B10 spinning, the spindle B12 of which carries a pointer geared to a second pointer to provide a pair of clock hands moving over a dial. When the disc B10 stops a roller on the end of a lever B8, which is under the control of a bellows dashpot, either engages the periphery of the disc or enters a notch. If it enters a notch, it raises a hopper A6 containing coins, by means of links B7, B9, through a distance corresponding to the depth of the notch thereby exposing a number of coins. These are then pushed off a divided platform A9 by an ejector A8 guided in a slotted part B11 integral with the hopper, so that the ejector moves with it and supports the pile of coins until the hopper is lowered to its normal position.
Patent GB-942775-A (GB)
Title: Scissors
IPC: A61B17/04
Filed: 1962-03-30
Abstract: 942,775. Making scissors. JOHNSON & JOHNSON. March 30, 1962 [March 31, 1961], No. 12315/62. Heading B3A. [Also in Divisions B4 and E2] Scissors are formed from a single piece of resilient strip metal by cutting, bending and twisting operations so as to form finger grip sections 10, 11 connected together by a portion 12, and blade members 13, 14 having blade sections 15, 16 and shank sections 17, 18 the blade members being pivotally secured together face to face by means of an ear 20 stuck up from the member 14 engaging a hole 19 stamped in the member 13. The shank section 18 is formed with an integral stop 23.
Patent GB-698465-A (GB)
Title: Improvements in and relating to electric filament lamps
Inventor: VAUSE ARTHUR SAMUEL
IPC: H01J5/20
Filed: 1951-05-25
Abstract: 698,465. Electric incandescent lamps. BRITISH THOMSON - HOUSTON CO., Ltd., March 6, 1952 [May 25, 1951], No. 12320/51. Class 39(ii) In order to facilitate the accurate positioning of a lamp filament or filaments 4 relative to a reflector, more particularly in a prefocus type lamp such as a dualfilament sealedbeam lamp, the filament-supporting wires 3 are embedded within a solid glass member 2 which is located within, and sealed to, a metal collar 1 adapted to be sealed to a reflector 13. The reflector may consist of glass with an internal metal coating, as in Fig. 5, or may be of metal to which a glass front lens is welded. Alternatively, a glass bulb 8, Fig. 4, may be sealed to the shoulder portion 7 of a metal collar 1 provided with a top flange 6 for attachment to a reflector. The filament-supporting wires 3 and connecting pins 5, may be welded end to end to a short intermediate length of wire that is embedded completely within the glass member 2 and consists of a metal having an expansion characteristic which matches that of the glass 2. Alternatively, the leading-in wires may consist of two wires welded end to end, either of which has an expansion characteristic matching that of the glass 2.
Patent GB-259497-A (GB)
Title: Method and apparatus for evaporating organic solvents
IPC: B01D1/14
Filed: 1926-05-13
Abstract: 259,497. Bollmann, H. Jan. 5, 1926, [Convention date]. Spray evaporators; column stills.-In evaporating organic solvents from materials which have been extracted by them, the liquid is atomized by steam into a cylindrical chamber in a a direction tangential to the walls. The chamber may be horizontal or vertical and the liquid may be passed in succession through a series of chambers. Liquid is atomized by steam in a device 4 into a chamber 1. The unvaporized liquid is heated either by heating jackets surrounding the chambers or by passage through a heated nest of tubes 12 and is discharged through an atomizer 9 into a second chamber 2. Vapours are withdrawn through a central pipe 6 having perforations or openings covered with wire gauze 7.
Patent GB-1065538-A (GB)
Title: Improvements relating to defensive constructions particularly for sea and river defence works
IPC: E02B3/12
Filed: 1964-03-24
Abstract: 1,065,538. Subaqueous structural elements. H. VIDAL. March 24, 1964 [March 27, 1963], No. 12414/64. Heading E1H. A structural unit e.g. for the construction or protection of quayside walls, dams, groynes, cofferdams, river banks and landworks &c. comprises a longitudinal rod shaped element (4) Fig. 4. (not shown) carrying at least two spaced apart bodies (2). As illustrated in the Figs. (not shown) the element may be rigid or flexible and the bodies may be formed as spheres, cubes, discs, cones or polyhedra.
Patent GB-583199-A (GB)
Title: An improved swivel coupling for the parts of electrical appliances
IPC: H01R35/04
Filed: 1944-06-30
Abstract: 583,199. Two-part couplings; swivelling couplings. HALLIDAY, W. M. June 30, 1944, No. 12468. [Class 38 (i)] An adjustable coupling for parts of electrical appliances, e.g., lamps, comprises a casing formed by two circular parts, 1, 2 enclosing a hollow space for the electrical coupling contacts 15, 16, 20, 21, a fibre or like frictional ring between the parts 1, 2, a central pivot pin 3 connecting the two parts and spring washers 6, 9 and nut 8 for resiliently pressing the parts 1, 2 together. Concentric ring contacts 15, 16 carried by an insulating disk 13 are engaged by clip contacts 20, 21 on a disk 19. The end of the pin 3 adjacent to the nut 8 is of D-section to prevent rotation of the pin in part 1. Studs 17, 23 connect the contacts with the leads 18, 22.
Patent GB-514014-A (GB)
Title: Improvements in endless-track tractors
IPC: B62D49/06
Filed: 1938-04-26
Abstract: 514,014. Endless-track tractors. McCOLLOUGH, J. H. April 26, 1938, No. 12507. [Classes 79 (i), 79 (ii) and 79 (v)] In a tractor comprising a power - driven endless -track unit 1, preferably having a single track, and a pivotally connected steering trailer unit 11, such as a farm implement, the power plant of unit 1 is disposed forwardly of and above the track and the point of pivotal connection is horizontal and lies adjacent the lower rear end of the track. The arrangement avoids tilting of the unit 1 and maintains the track in contact with the ground. As shown, the pivotal connection comprises a steering fork 10 carried by the rear unit 11 pivotally supported at 15 on trunnions secured to the sides of unit 1. A tension spring connects the fork with the unit 1 to maintain the rear end of the track in contact with the ground, and a stop limits angular movement against the action of this spring. Steering gear 12 at the head of fork 10 is operable by a hand wheel 13. The engine drives the track through spur gears 25, 33, spur reversing gearing, and chain gearing 9. A friction clutch 36 normally connects gear 33 with shaft 8, for forward driving ; the reverse drive is obtained through gears 33, 78 and 74, 73, 71 when clutch 36 is disengaged and a clutch 79 connects gear 71 to shaft 8. The two clutches are controlled by a lever 45 biassed by a spring 51 into the position for forward driving and connected by a cable 58 with a hand-grip 61 slidable and rotatable on a rod 62 ball-jointed at 67 to steering - wheel 'support. By drawing hand-grip 61 along rod 62 lever 45 is moved first into an intermediate position in which the drive is interrupted and then into the position in which the reverse gear is brought into action. The hand-grip can be locked in an adjusted position by rotating it to bring a pin 64 thereon into engagement with one of a series of notches 63 in rod 62. Means are provided to take up slack in the cable 58 due to steering movement.
Patent GB-1465585-A (GB)
Title: Reflector for roadways
IPC: E01F9/07
Filed: 1974-03-21
Abstract: 1465585 Road reflector L EIGENMANN 21 March 1974 [21 March 1973] 12545/74 Heading E1G A road reflector comprises a first flat portion 22, which is secured to the surface of a road marking line 12, and a second tab portion 20 connected to the first portion by a flexible zone 60, the reflector being formed from a resilient transparent material and the second portion 20 including within it a reflective sheet covered by one or more layers of beads 54. The transparent material is preferably polyamide fibre reinforced polyurethane resin, and the reflective sheet is preferably aluminium with a monolayer of ballatinic. For Figure see next column
Patent GB-217015-A (GB)
Title: Improvements in locking devices for the joints of linkwork or other hinged members
IPC: E05D11/10
Filed: 1923-05-10
Abstract: 217,015. Daimler Co., Ltd., and Bush, A. E. May 10, 1923. Securing flaps in a given relative position.-For linkwork and other hinged members a spring- pressed finger C<4> is pivoted at A<6> to one member A and adapted to exert an end thrust against the other member B and hold it against a stop. In the arrangement shown, the member B is extended beyond its pivot A<2> and its edges B<2> abut against the lower edges A<5> of the links A<3> rigidly secured to the member A. Between these links A<3> is a member B<3> secured to the hinged member B and it has a curved surface B<4> against which the locking member C<4> engages. This surface B<4> is eccentric to the surface C<5> of the locking finger C, since it represents an arc struck from the centre X. By this arrangement, as the edge B<5> of the member C is forced over the surface B<4> under the action of the spring C<3> it wedges against the member B<3> and tends to force the edges B<2>, A<5> into engagement. To move the member B about its pivot A<2>, the edge B<5> of the finger C must first be lifted by depressing the end C<4>. The device may be modified by providing operating means for actuating or releasing the finger member C. The device may be applied to the hinge joint used for the folding window frame of a vehicle door, such as described in Specification 216,318.
Patent GB-1244179-A (GB)
Title: Synthesis of n,n'-disubstituted bipyridylium salts
Inventor: COLCHESTER JOHN EDWARD
IPC: C07D213/22
Filed: 1968-03-15
Abstract: 1,244,179. N,N<SP>1</SP>-Disubstituted bipyridylium salts. IMPERIAL CHEMICAL INDUSTRIES Ltd. 3 March, 1969 [15 March, 1968 (2)], No. 12644/68. Heading C2C. A process for the production of a 1,1<SP>1</SP> -disubsti - tuted-4,4<SP>1</SP>-bipyridylium salt comprises reducing an N-substituted pyridinium salt having in the 4-position a substituent which is a good leaving group and which is capable of forming a stable anion. The reduction may be carried out by means of a reducing agent or by controlled potential electrolysis in the presence of a polar solvent such as water or acetonitrile. 1,1<SP>1</SP>-Dimethyl-4,4<SP>1</SP>-bipyridylium salt is prepared in the examples.
Patent GB-237387-A (GB)
Title: Improvements in the construction of cabinets, boxes, and the like
IPC: F16B12/02
Filed: 1924-05-23
Abstract: 237,387. Wildey, E. M. May 23, 1924. Corner joints; materials, special, for boxes.-Panels forming the sides of a box enter longitudinal grooves 2, 2a in the corner posts and are secured therein by rings adapted to be pressed into annular channels 4, cut in the end faces of the posts and intersecting the panels. The panels may consist of casein products.
Patent GB-1454447-A (GB)
Title: Manufacture of a-methyl ethers of anthraquinone
IPC: C07C67/00
Filed: 1974-03-22
Abstract: 1454447 Alpha-methylethers of anthraquinone BASF AG 22 March 1974 [24 March 1973] 12773/74 Heading C2C Alpha-methyl ethers of anthraquinone are prepared by reacting alpha-nitroanthraquinones with excess methanol in the presence of at least the stoichiometric amount of anhydrous or virtually anhydrous potassium carbonate. The examples describe the preparation of 1- methoxy-, 1,5-dimethoxy- and a mixture of 1,5- and 1,8-dimethoxy-anthraquinones.
Patent GB-730509-A (GB)
Title: Improvements in air guns
IPC: F41B11/72
Filed: 1953-05-07
Abstract: 730,509. Air guns. MANGOLINI, B. May 7, 1953, No. 12793/53. Class 119. An air gun has a magazine 9, 10 for missiles 7, means such as a plunger 5 for delivering the missiles one at a time to the breech 3, valve means 35 to put a propulsion chamber 16 into communication with a compressed air source, pneumatically controlled mechanism for acting in succession on the plunger, valve 35, and a trigger disengaging device 44, and a trigger-actuated lever system adapted to operate a further valve means 41 to put the pneumatic control in communication with the compressed air source. In the construction shown, a pull on the trigger 36 causes a lever 38 to descend, the descent of the lever serving to close the upper end of a tube 40 and causing the tube to open the valve 41. Compressed air from a conduit 18 in the butt 19 can then flow into a chamber 43 of a cylinder 20 and a piston 21 is moved forwards carrying with it two cams 24, 25. The cam 24 rocks a lever 26 which lifts the plunger 5 to introduce a round from the magazine into the breech, and subsequently the cam 25 rocks a lever 32 which opens the valve 35 to permit compressed air to reach the propulsion chamber 16. Finally a hook 44 moving forwards with the piston disengages the trigger from the lever 38. The valve 41 then closes under spring action, the piston 21 moves rearwards under the action of a spring 22, and air escapes from the cylinder to the atmosphere via the tube 40. The rounds in the magazine are urged towards the plunger by a spring- pressed follower which has an extension moving over a visible scale which indicates the number of the remaining rounds.
Patent GB-310423-A (GB)
Title: Improvements in or relating to chain pumps
IPC: F04B19/14
Filed: 1929-04-24
Abstract: 310,423. Vellino, C. April 25, 1928, [Convention date]. Bucket-elevator apparatus. - In liquid-raising apparatus of the kind comprising one or more pistons 1 mounted on an endless cable 4 which travels through a barrel 8 and over a pulley 5, the pistons are shaped to conform to the periphery of the pulley in order to prevent excessive bending of the cable. The pistons are mounted on the cable by means of tapered washers 2, 3. as in Fig. 1, or by a single washer and a union nut 9 as in Fig. II. The widened ends of the cable are fixed in two pistons 10, 10<a> united by a screwed sleeve 11.
Patent GB-437605-A (GB)
Title: Electrodynamic sound reproducers or microphones
IPC: H04R9/04
Filed: 1934-04-27
Abstract: 437,605. Sound-reproducing devices. PRICE, S. L., 185, King's Avenue, Clapham Park, and PARRITT, J. E. G., 69, Mark Lane, both in London. April 27, 1934, No. 12820. [Class 40 (iv)] A microphone or loudspeaker comprises a moving conductor or winding carried by a conical diaphragm which forms its sole support, the conductor being capable of movement in more than one direction, in a gap formed by vertical plane surfaces of a permanent magnet or an electromagnet. There may be more than one conductor gap or diaphragm. As shown in Fig. 3, a flat coil is pivotally mounted by a spindle 17 in a stirrup 19 connected to the diaphragm. A ball joint may be used between the diaphragm and the coil former. Different coils may be fitted into the stirrup, or in a modification, Figs. 8-10 (not shown), a set of windings may be mounted in a supporting frame so that any one can be turned into the operative position in which the stirrup supports it in the magnetic field. As shown in Figs. 11 and 12, two coils are wound on one former 43, which can be reversed in the stirrup 40 carried by the diaphragm, the connections being made by spring contacts 41, 42; in modifications not shown, more than two coils are mounted on one former, the coils being arranged about the sides of a triangle, square or polygon. The connection between the stirrup and the diaphragm may be adjustable in length. The instrument shown in plan in Fig. 4 comprises a permanent magnet 1 with two gaps in which move two opposite sides 10 of a rectangular coil which surrounds the central pole and is guided by a central rib 17 which extends into a groove in the magnet. The former 6<1> is connected to the diaphragm 7 by a rod 16 jointed at 20. In a modification, Fig. 6, the rectangular coil is replaced by a pair of flat coils 6, 6, pivotally mounted by means of spindles 17 between arms 28 in a stirrup 19. In another construction, Fig. 1 (not shown), a flat coil moves within a single gap formed by an adjustable polepiece. As shown in Fig. 7, two opposite parts 10, 101 of a single flat coil move in the gaps between two magnets 30, 31. The former 6 is connected with the diaphragm 7 by a rod 16 adjustable in a sleeve 32. A second conical diaphragm (not shown), having different characteristics may be carried at the free end of the former.