baber/WOPTO huggingface dataset:
Patent GB-713968-A (GB)
Title: Improvements in and relating to electric current converters
Inventor: READ JOHN CARLEY
IPC: H02M1/26
Filed: 1951-11-12
Abstract: 713,968. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 15, 1952 [Nov. 12, 1951], No. 26438/51. Class 38(2) in a converting circuit comprizing contact converters with saturable chokes to produce contact opening and closing steps, each choke 5 is premagnetized by D.C., in winding 21, to provide a constant magnetizing force 17, Fig. 3, so that the main contact current does not reverse before desaturation of the choke, and by a pulse each cycle, in winding 25, of sufficient magnitude to magnetize the choke to a controllable point 20 at contact closing, so that the closing step results from magnetizing the choke from point 20 to saturation at 21. Fig. 4 shows the control circuits for one contact gap 4 of a polyphase rectifying circuit. The pulse is produced in winding 25 from an A.C. source 26 by firing a thyratron 27 at a time 30, Fig. 5. selected so that a magnetization impulse of the required magnitude in volts-seconds, shown by part of the shaded area, has been applied to winding 25 by the time contacts 4 close at time 31 not far from the time at which volts 29 of source 26 reach zero. The thyratron grid regains control at 32 when the pulse current reaches zero, so that the flux change during the opening step induces no current in winding 25. Choke 28 reduces the current induced during the closing step. In a modification, the pulses are developed across presaturated chokes, the timing being controlled by varying the degree of premagnetization, Fig. 6 (not shown). The invention may be applied to inverting circuits.
Patent GB-332441-A (GB)
Title: Improvements in needle-holders and needles for gramophones and the like
IPC: G11B3/46
Filed: 1929-08-31
Abstract: 332,441. More, T. Aug. 31, 1929. Tool-arms and mountings.-A stylus-holder of the kind comprising two discs between which radially arranged needles are clamped, and which are mounted for rotary adjustment, so that any one of the styli can be brought into operative position, is constructed with ridges on the discs arranged to bear at separated points at one side of each stylus and at an intermediate position on the other side. The styli M are held between discs K<1>, L<1> mounted on a spindle K rotatable in a sleeve H<1> and carrying a collar K<4>, spring K<7>, and adjusting nut K<6> . The sleeve has a projection H to be secured in the usual stylus-holder of a sound-box, and the styli are successively positioned by rotating the discs so that successive notches in the collar K<4> engage a projection H<2> on the sleeve. The discs are shaped to form pockets for the styli which are further retained by light springs, L<5>, and clamping of the styli is effective between ridges K<2> on one disc and a ridge L<2> on the other.
Patent GB-151276-A (GB)
Title: Improvements in anti-drip devices applicable to bottles, decanters and the like
IPC: B65D47/40
Filed: 1920-09-17
Abstract: 151,276. Bauhain (nÚe Papayanniy), P. Sept. 17, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Drip retaining and separating devices; sediment, retaining and separating; discharge devices. -A drip preventing or retaining and separating device for bottles, decanters, &c. comprises a cylindrical or funnel-shaped member having a sharp edge over which the liquid flows and attachable on or in the neck of the vessel by an elastic member forming an air-tight joint. As shown in Fig. 4, the member a is funnel-shaped and has a sharp edge c which quickly cuts off the stream of liquid as the vessel is returned from the pouring to the upright position. The member a may 'be made of metal, wood, celluloid, &c. and is secured on the neck of the vessel d by an elastic rubber sleeve b, which may be arranged either as shown or with the lower edge turned up into contact with the vessel near its mouth, the joints in each case being air-tight. Liquid which would otherwise run down the outside of the vessel accumulates at h and may be prevented from being poured out by the provision of a partition j. The member a may be drawn up above the mouth of the vessel to form a funnel. As shown in Fig. 10, the member a is held within the neck of a bottle d by a rubber ring n, a similar construction being used for a decanter. The member may be provided with a lid o hinged at p, and its lower edge q may be bent inwards to cause sediment to pass and be retained between the base of the member and the inner wall of the neck. Another form of lid u, Fig. 12, is secured to a rod v slidable freely in sockets x held centrally in the member by three or four wires t, a collar y limiting the outward movement of the rod. The member may, in another form, be held inside the neck by an external socket with claws engaging the base of a projection on the neck, a rubber ring forming an air-tight joint at the mouth and a gauze strainer being provided at the lower end of the member.
Patent GB-782178-A (GB)
Title: Improvements in water heaters and steam generators
IPC: F22B21/24
Filed: 1954-09-14
Abstract: 782,178. Water-tube steam boilers. WEBB, H. W. B. Sept. 13, 1955 [Sept. 14, 1954], No. 26663/54. Class 123(2) A steam boiler comprises a number of individual water-tubes connected in groups, all the tubes in a group being bent to the same irregular shape and assembled side-by-side with alternate tubes reversed or inverted whereby there are formed gaps for the passage of hot gases between some portions of adjacent tubes, with other portions in contact to form a closed wall to deflect the gases. In the form shown, two nested tube groups A, B are housed in a casing C provided at one end wall with an oil burner OB, the opposite end wall C1 being removable for access to the tubes. The group A and B tubes are respectively connected for thermo-siphon water flow between inlet headers A2, B2 and outlet headers A1, B1. Each of the tubes of group A is of the same M shape, the space between the inner legs Ma of the assembled tubes forming the combustion chamber CC of the unit. The inner legs Ma are joined by an inclined tube portion Mc whilst the curved bend r joining one inner leg to the outer leg Mb is of smaller radius than that of the bend R joining the other inner leg to the other outer leg Mb1. With the tubes arranged side-by-side and alternately inverted, gaps G, G1 are formed between tube portions Mc and Mb, Mb1 respectively, whilst the inner legs lie in contact to form walls W. defining the top and bottom of chamber CC. The group B tubes are also of an identical M shape with bends of differing radii connecting their outer and inner legs Mg, Me, but the tube portions Mf connecting the inner legs are not inclined so that, with the tubes assembled side-by-side and alternately inverted and nested in the group A tubes, closed walls W2, W3 are formed by tube portions Mf, Mg respectively whilst gaps G2 are formed between the inner legs Me. In operation combustion gases pass through the gaps G, are deflected by wall W2 and flow in a serpentine path between the tubes passing through gaps G2 and G1 and finally discharging through outlet flues F1, F2. Baffle plates 5, 6 are fitted where indicated to prevent shortcircuiting of the gases.
Patent GB-796844-A (GB)
Title: Filing tools
IPC: B23D71/00
Filed: 1956-08-31
Abstract: 796,844. Rotary-files; making files and rasps. CUCUMO, M. Aug. 31, 1956 [Aug. 31, 1955], No. 26714/56. Addition to 770,329. Classes 83 (2) and 83 (3). [Also in Group XXIII] In a modification of the tool claimed in the parent Specification the toothed member 9 is mounted in an undulating, spiral or helical groove in a carrier, such as in the undulating spiral groove 8 in one or both sides of a cast metal or moulded synthetic resin rotary carrier 7. The member may be pressed into the carrier by a roll having flanges which upset the body of the carrier to secure the member firmly in its groove. The spiral groove may be eccentric to the axis of the tool. A cylindrical carrier may have an undulating helical groove. In making a hand file, Fig. 4, the member is pressed into a plain or undulating helical groove in a hollow cylindrical carrier, the groove edges being simultaneously upset as described above, and the carrier is then flattened to the shape shown. The teeth on each side of the member 9 may be arranged as in Fig. 5 to cut in the same direction of movement. In a further modification, several members 9, Fig. 7, are secured in straight or undulating grooves in a carrier formed of sections 12 clamped by bolts 13 to form a hand-file. The member 9 may also be mounted in a flexible, endless plastic-tape for reciprocatory or rotary movement. Specification 755,300 is referred to.
Patent GB-1483452-A (GB)
Title: Device for teaching concepts of numbers and mathematical principles
IPC: G09B23/02
Filed: 1974-08-22
Abstract: 1483452 Teaching mathematics H WALKER 22 Aug 1974 [5 June 1973] 26726/73 Heading G5G Apparatus for teaching mathematics includes a square base divided into a hundred square units, and transparent number elements, each marked with the number which it represents and being of such dimension as to overlie that number of square units. Preferably the number elements have holes which engage pegs in the box.  Ten number elements are provided for each of the integers 1 to 10, there being five for the integer 20, three for the integer 30, two for each of the integers 40, 50 and one for each of the integers 60, 70, 80, 90, 100. Two boxes are provided, one to take the elements representing 1 to 10 on edge with the number element representing 1 alongside that representing 9, &c. and one to take the elements representing 20 to 100 flat.
Patent GB-191174-A (GB)
Title: Improvements in ink bottles
IPC: B43L25/00
Filed: 1921-10-11
Abstract: 191,174. Guttenberg, W. Oct. 11, 1921. Inkstands.-Relates to cheap and light ink bottles sold full of ink, and particularly to bottles provided with a depression in the base, or with projections at the sides, permitting tilting of the bottle, so that all the ink can be conveniently used. The base C, Fig. I, of the bottle A is internally curved to form a central conical depression D directly beneath the mouth B of the bottle, the curving of the base also serving to prevent accumulation of sediment in the angles between the base and sides of the bottle. The bottle shown in Fig. III is provided with notches F or the like engaging catches G on a right-angled support H, preferably of metal, adapted to support the bottle at an angle to form an ink pool in the corner K; in a modification of this form, the bottle is provided with a fixed moulded hollow rectangular projection.
Patent GB-1458885-A (GB)
Title: Synchromesh gear boxes
IPC: F16H63/30
Filed: 1974-06-18
Abstract: 1458885 Change-speed control AUTOMOBILES M BERLIET 18 June 1974 [18 June 1973] 26854/74 Heading F2D The pressure in a jack 5 operating the shifter fork 3 of a synchronizer clutch 2 in a changespeed gear-box is modulated during a ratio shift by opening and closing of a valve 10. The valve may be a three-way valve which when open connects the jack to a pneumatic pressure source 9 and when closed exhausts the jack through a return line 8. A winding 17 for actuating the valve is energized by signal pulses from a modulator 11 in response to an initiating signal 12 from an operator. The duration and timing of the signal pulses are so ordered by the modulator that the open and closed periods of the valve produce a desired pattern of pressure variation in the jack. The pressure may be caused to vary as in Fig. 2 in which the time interval t 0 -t 1  represents a first stage during which the synchronizer is moved from engagement of one ratio to a position to commence synchronization for a new ratio, t 1 -t 2  a second stage during which synchronization takes place, and t 2 -t 3  a third stage occupied by movement of the synchronizer for positive engagement of the new ratio. Pressure rises to a first maximum 13 during the first stage, falls to a minimum 14 just after commencement of the second stage, and then rises progressively to a second maximum 15 during the third stage. An alternative pattern of pressure control is illustrated by Fig. 4 which shows in its upper part the initiating signal 16, below that the signal pulses, and in its lower part the pressure variations in the jack. Pressure rises to a first maximum 13 during the first stage A and then falls to a first minimum 14 just after commencement of the second stage S, after which it rises to a second maximum 21 and then falls to a second minimum 22 at the end of the second stage, and finally rises to a third maximum 23 at the end of the third stage C.
Patent GB-1224673-A (GB)
Title: An improved frame for a v-type internal combustion engine
IPC: F02B75/22
Filed: 1969-05-28
Abstract: 1,224,673. I.C. engine constructions. UNITED DIESEL AB. May 28, 1969 [July 5, 1968], No.26959/69. Heading F1B. In a Vee engine cylinder units 5 are mounted in rows in a frame top part having angularly arranged surfaces 2, 3 which are broader than the individual cylinder units, a cam shaft 14, 15 is mounted in a box 17 fitted on the surface 2, 3 at the side of the cylinder remote from the central plane and a transmission between the crank-shaft and the two camshafts is located at one end of the frame. Exhaust gas driven turbines 10 drive compressors 11 to supply charging air through conduit 12. Each cylinder has a fuel pump 13. The engine may be a 4-stroke or when arranged as a 2-stroke has air inlet openings arranged in the cylinder liner below the cooling jacket and the space between surfaces 2, 3 and wall 6 arranged as a charging air receiver.
Patent GB-173575-A (GB)
Title: Improvements in and relating to draw-bar connections for use with road-trains and the like
IPC: B62D13/00
Filed: 1920-09-22
Abstract: 173,575. Camp, W. Sept. 22, 1920. Couplings for road vehicles and trains. - Crossed coupling-members d, e are arranged between the adjacent vehicles of a road train and the points of connection to one vehicle are adjustable transversely, holes being provided for this purpose in plates h, i. Reference has been directed by the Comptroller to Specifications 8137/07 and 14243/07.
Patent GB-260982-A (GB)
Title: Improvements in or relating to anti-glare means for vehicle headlights and the like
IPC: F21V5/00
Filed: 1926-10-28
Abstract: 260,982. Sisson, H. W. Nov. 9, 1925, [Convention date]. Vehicle lamps. - An anti-dazzle device for vehicle and like lamps comprises a solid and transparent member 20 of conical, pyramidal, hemispherical, or other diminishing formation, having its base 21 integral with the inner face of a front glass 14 and its tapering surface 25 pointing towards a source of light 10 so as to screen the central direct rays 24 and deflect them outwardly as at 32 to increase the lateral illumination. The member 20 is preferably a solid glass-cone formed in one piece with the front glass 14, and its tapering surface may be polished or finished to make it reflecting. The Specification as open to inspection under Sect. 91 (3) (a) states also that the member 20 may be hollow and cemented or otherwise mounted on the front glass 14, and that it may be made of ground glass, metal, wood, fibre, paper, or other opaque or translucent material or combination of materials. This subject-matter does not appear in the Specification as accepted.
Patent GB-171263-A (GB)
Title: Improvements in and relating to systems of electrical distribution
IPC: H02J3/14
Filed: 1920-09-23
Abstract: 171,263. British Thomson - Houston Co., Ltd., (General Electric Co.). Sept. 23, 1920. Cut-out arrangements.-In an electric cut-out system a resistance, the circuit of which is controlled by an auxiliary switch, is normally shortcircuited by the cut-out and is connected between the bus-bar and the distributing main when the cut-out is opened, and a switch-member must be operated a predetermined number of times before the cut-out can be closed again. A voltmeter associated with a resistance is employed to indicate which of a number of distributing mains is faulty and also to indicate the position of the fault. The circuit of the operating coil of the cut-out 5 includes the upper contacts of an auxiliary switch 7, the contacts of an overload relay 8, and the contacts 14, 15 of a notching relay 10. The lower contacts of the switch 7 controls a shunt circuit about the contacts of the cutout 5 and containing a resistance 17 and the coil of a relay 16. An auxiliary switch 6 associated with the cut-out 5 controls the circuit of a voltmeter 20 which indicates the distributing main in which the fault exists and also the position of the fault in the main. The operation is as follows : The closure of a switch 9 energizes the switch 7 which closes to complete the operating circuit of the cut-out 5 through the contacts of the overload relay 8 and the contacts 14, 15 of the notching relay 10. The operation of the switch 7 closes a circuit containing the high resistance 17 and the coil of a relay 16. When a fault occurs in the main 3 the relay 8 operates to open the circuit of the cut-out 5 and a point beyond the cutout is connected to the bus-bar 2 through the resistance 17 and the coil of relay 16, which operates to close the circuit of the operating coil 11 of the notching relay 10. The first operation of the relay 10 opens the operating circuit of the cut-out 5 at the contacts 14, 15. The auxiliary switch 6 connects the voltmeter 20 to the busbar 2 through resistances 17 and 21, and the reading of the voltmeter 20 indicates that the main 3 is faulty and also the position of the fault. After the fault has been removed, the man effecting the repair effects a short-circuit and removes it the desired number of times to operate the notching relay 10 until the contacts 14, 15 engage when the cut-out 5 operates to apply full voltage to the mains, and this condition is indicated by a bank of lamps connected in parallel with the switch for effecting the re-setting short-circuits. If the operation of the cut-out is effected by a momentary short-circuit, the re-setting is accomplished by a motor-man moving his controller to its first position the desired number of times to close again the notching relay 10.
Patent GB-1392895-A (GB)
Title: Fractured bearing races
IPC: B21K1/04
Filed: 1973-06-07
Abstract: 1392895 Breaking bearing races TORRING- TON CO 7 June 1973 [8 June 1972] 27158/73 Heading B3E [Also in Division F2] A method of fracturing a unitary bearing race 18 comprises applying a force concentrated at each of a plurality of longitudinally spaced apart points on the outer circumference of the race. The fracturing process is repeated to produce at least two sections which are re-assembled in the desired location and retained by means of a split ring 22 which engages in a circumferential groove 20. Apparatus (Fig. 5) for carrying out the method comprises an arbor 36 having a flat top 38 and over which the race 18 is placed. Pressure is then applied to the race by means of a pivotable lever 40 having three screws projecting therefrom. One 54 of the screws is slightly offset from the other two 50, (52) in the circumferential direction of the race; the resulting line of fracture 24 is therefore slightly curved. The race may be provided with a weakening notch 26 at one axial end. Each pressure screw may have a semi-spherical member pivotally connected to its lower end by means of a rubber compound. In a further embodiment (Fig. 7, not shown), a second line of fracture may be caused on the opposite side of the race by means of a second pivotable lever and set of pressure applying screws.
Patent GB-818871-A (GB)
Title: A new or improved pedal-assistance drive unit for motor-driven cycles
IPC: B62M11/14
Filed: 1954-09-20
Abstract: 818,871. Cycle driving gear. SEYMOUR H. H. Sept. 20, 1955 [Sept. 20, 1954], No 27159/54. Class 79(2) A transmission unit for an engine-driven cycle comprises a gear casing 1, 2 adapted to be mounted in the angle of the cycle frame adjacent the bottom bracket 4 and housing an epicyclic gear transmission giving a single ratio step-up drive from an input sprocket 12 to an output sprocket 14, chain transmissions for connecting the sprockets to a pedal crank shaft 5 and to a shaft 49 drivingly connected to the cycle wheel (not shown), and a free wheel device (not shown) in one of the transmissions to allow the engine E to drive the cycle without affecting the pedals 7. As further shown the epicyclic gear comprises an internally toothed ring 17 secured to the casing part 2, a sun wheel 18 rotating with the output sprocket 14 and a planet wheel carrier 19 coupled to the input sprocket 12. The casing parts 1, 2 are secured together and the part 1 has holes 43 in a peripheral flange 42 receiving bolts 45 connected to clips 10, 11 attached to cycle frame members 8, 9. The casing has a bracket 30 adapted to be bolted to the bottom bracket 4. The output sprocket 14, which is stated to include the free wheel device, is connected by a chain 15 and a sprocket 16 to the shaft 49 carrying a sprocket 37 connected to the driven cycle wheel (not shown), the shaft 49 being connected by a transmission including a clutch in a housing 48.
Patent GB-1302816-A (GB)
IPC: G11B5/55
Filed: 1971-04-19
Abstract: 1302816 Photo-electric positioning NEWELL INDUSTRIES Inc 19 April 1971 [1 May 1970] 27163/71 Heading G1A In an arrangement for registering a transducer 10 Fig. 1 with respect to any one of a plurality of laterally adjacent record paths 11 a movable grid 32 is mechanically coupled to the transducer for movement across a pair of light paths including grids 16a, 16b and photo-cells 23, 24, and a servomotor 49 is coupled to drive the transducer in accordance with the difference between the two photo-cell outputs. The grids 16a, 16b are arranged as in Fig. 2 so that when the shutter grid obscures one path the other path is clear. The arrangement may move one step in response to an input pulse or a succession of steps may be made whilst a manual button is depressed. The drive may be in either direction and limit switches and a track counter are fitted. The head may be made to home on a predetermined track.
Patent GB-335047-A (GB)
Title: A pneumatic musical instrument player
IPC: G10F1/02
Filed: 1929-09-06
Abstract: 335,047. iõstner-Autopiano Akt.- Ges. May 23, 1929, [Convention date]. Wind-trunks and the like.-In an automatic pianoforte where, for playing, the tracker-box c is drawn forward from beneath the keyboard, leaden tubes 16 connected to the tracker-bar 13 are connected to leaden tubes 21 leading to the action 14, by hinged brass tubes 10, 12, the joints 6 of which rise and close, on pushing in the tracker-box. A series of alternate rotatable bosses 7, 8 are arranged on the spindles 4, 6, 5 and held together by a spring at the end of each spindle. Each boss has a circular groove 9 on one face connected to a tube 10, the groove coacting in all positions with the mouth of a tube 12 on the adjacent boss.