baber/WOPTO huggingface dataset:
Patent GB-1387382-A (GB)
Title: Vernier tuning means for a tuner
IPC: H03J3/20
Filed: 1973-01-17
Abstract: 1387382 Variable capacitors GENERAL INSTRUMENT CORP 17 Jan 1973 [29 Sept 1972] 2498/73 Heading H1M In a tuner comprising gauged variable capacitors each having stator electrodes 12 and rotor electrodes 16 mounted on shaft 14, fine tuning is accomplished by providing a further stator electrode 22 of small area (Fig. 4B), and, also mounted on shaft 14, a corresponding rotor electrode 24 divided into sections by radial slots 26 each section having about the same angular extent as stator 22 and being bendable out of the plane of the rotor to effect the fine tuning. Preferably the outer rotor electrodes of the main capacitors are also slotted for adjustment and for optimum results the latter slots are staggered in relation to slots 26. When for example about seventy television channels are required to be tuned, each section of the auxiliary rotor may cover about six channels. In an alternative construction (Fig. 7), the auxiliary stator 22<1> extends parallel to the axis of rotation and the rotor comprises a larger number of adjustable sections consisting of fingers extending from the periphery of a disc mounted on shaft 14.
Patent GB-966553-A (GB)
Title: Improvements in or relating to devices for controlling the working depth of implements attached to a tractor having a lifting gear and lifting linkage
IPC: A01B63/111
Filed: 1961-01-23
Abstract: 966,553. Tractor power lift mechanisms. STEYR-DAIMLER-PUCH A.G. Jan. 23, 1961 [Jan. 23, 1960], No. 2544/61. Heading A1P. A tractor power lift linkage system is controlled in response to ground level fluctuations from a trailing feeler member and in response to an increase in the tractive force required to pull the implement. The hydraulic system comprises a reservoir 2, and a pump 1 supplying a ram 4 under the control of lift device 3, the ram acting on a lift arm 5 connected by a link 6 to a lower link 7 of a three point linkage, the upper link of which is not shown. A feeler roller 9 is carried by an arm 8 pivoted to the tractor and having an angled part 10 connected by a link 11 to a lever 12 which is connected to a lever 13 pivoted at 14 to a link 17 connected via links 16 and 15 to an arm 18 of the lift arm 5. Rise or fall of the roller 9 actuates the device 3 in the appropriate direction through levers 12 and 13. The links 15, 16 and 17 provide a follow up mechanism to re-set the device 3 at the appropriate implement depth. The lever 13 is also connected to a rod 20 through which the lever is actuated in response to increases in the tractive effort required to pull the implement, the connection being a resilient one and operating only when a predetermined effort is required. A manual adjustment of the working depth may be obtained by the hand lever 21 and independent operation of the lift apparatus may be obtained by the hand lever 19. The arm 8 may be connected to the tractor by a shock absorber 22.
Patent GB-346869-A (GB)
Title: Improvements in coil winding machines
IPC: H01F41/06
Filed: 1930-01-25
Abstract: 346,869. Traverse mechanism for coil winding machines. GEDDES, J. W., Katu, Bodley Road, New Malden, Surrey. Jan. 25, 1930, No. 2655. [Class 120 (ii).] A traverse mechanism for coil winding machines comprises two constantly rotating shafts engaging alternately halfnuts on a lever which is automatically rocked, locked in engagement, and released, by mechanism self-contained on the traversing carriage, except for a stop and a spring actuating the rocking lever on each side of the carriage, which are fixed to immovable parts of the machine. The half-nut a<3> on the arm a<1> of the lever a<1>, a<2> pivoted at a is maintained in engagement with the screw b by a lever d<2>, which has a weight or spring-loaded arm d<6>, whilst the traverse carriage moves to the left as in Fig. 1. As the end of the traverse is approached a boss d<4>, on a lever d<1> compresses a spring f<1>, a roller d<3> also at the end of the lever d<1> engaging the shaped end c of the lever arm a<2> which is rocked under pressure of the spring f<1> when a rod e encounters a stop f<3> and displaces the lever d<2>. The stops f<2> and f<3> are on screwthreaded rods for adjustment of the length of traverse.
Patent GB-1536033-A (GB)
Title: Process for making non-fired agglomerates
IPC: C22B1/243
Filed: 1976-01-23
Abstract: 1536033 Non fired agglomerates NIPPON STEEL CORP 23 Jan 1976 [14 June 1975 (2)] 2701/76 Heading C1A Non fired agglomerates are made by mixing iron ore powder and hydraulic binder to obtain mixture of CaO : SiO 2  ratio of 1À2-1À9 and 13-19% slag forming material, grinding the mixture, forming into agglomerates with an appropriate amount of water and curing without using a matrix of powdered ore to support agglomerate during curing. The iron ore is preferably Fe-rich low SiO 2  ore or ore containing SiO 2  or derivative thereof such that SiO 2  content of powder is not less than 1À5%. The agglomerates may be coated with a moistened inorganic material to prevent adhesion during coating. Suitable binders are Portland or alumina cement, or cement clinker or mixtures of cement with slag, fly ash, borazon, pozzolana or masonry cement. A wide variety of materials useful for adjusting CaO : SiO 2  ratio are specified.
Patent GB-1424772-A (GB)
Title: Energy absorber
IPC: F16F9/00
Filed: 1973-01-18
Abstract: 1424772 Shock absorbers RAUFOSS AMMUNISJONSFABRIKKER AS 18 Jan 1973 [19 Jan 1972 1 March 1972] 2727/73 Heading F2S In a shock absorber comprising a ported piston sliding in a cylinder, the damping medium is a Bingham-plastic substance, i.e. one which, instead of behaving like a liquid and flowing through the piston directly it starts moving, will resist flow through the piston until the shearing stress applied to the substance exceeds its yield stress. The only examples of suitable substances are a silicone oil of from 10,000 to 100,000 centistokes viscosity with SiO 2  or Al 2 O 3  added. The substance may or may not be compressible. If it is incompressible, then means are provided for accommodating for piston-rod volume and for providing a return force. These are a spring-loaded piston, rubber or a cellular plastics material, or gas in a flexible enclosure. These may also be used with a substance which is compressible. The substance may be precompressed. When the shock absorber is to be used to mount a vehicle bumper, the substance may also be thixotropic, regaining its original viscosity before the next collision.
Patent GB-236476-A (GB)
Title: Improvements relating to metal lantern lights for buildings
IPC: E04D13/03
Filed: 1925-01-30
Abstract: 236,476. Hope & Sons, Ltd., H., and Hope, H. D. Jan. 30, 1925. Skylights and roof-lights.-A ridge or hip-bar a for a metal lantern light is provided with integral angle-bars b at its lower edge for supporting the glazing bars d, and a lateral projection C is formed on each side for supporting the glass e. At the junction of the ridge and hip-bars, a strap or plate f secured to the flanges b of the bars a connects the parts together. The hip-bars are secured to vertical corner posts by screws inserted through the flanges of the bars.
Patent GB-1337512-A (GB)
Title: Heat-preserving hot water boiler
IPC: F24H1/20
Filed: 1972-01-20
Abstract: 1337512 Water heating boiler PALOMA KOGYO KK 20 Jan 1972 [26 Jan 1971] 2781/72 Heading F4A In a water heating boiler, a flue pipe 10 extends through a water tank 1 from combustion chamber 9 and two outer covers 4, 6 extend around the tank to define downwardly, 2, and upwardly, 5, extending passages leading flue gases from pipe 10 to outlet duct 12. An outer housing 8 forms a third cover and defines with the second cover 6 an air inlet passage 7 connecting air inlet duct 13 to the combustion chamber 9 via holes 11, and the outlet duct 12 is disposed within inlet duct 13 in a balanced flue arrangement. The cover 6 is lined with heat retaining material such as glass wool or asbestos. Water enters the tank 1 at 16 and hot water leaves at 17, a temperature sensing element 19 is coupled to control the burner supply.
Patent GB-1373426-A (GB)
Title: Machine for teaching
IPC: G09B7/08
Filed: 1972-01-20
Abstract: 1373426 Educational appliances EASTMAN KODAK CO 20 Jan 1972 [25 Jan 1971] 2821/72 Heading G5G A teaching machine comprises a screen 16; an arrangement 17, 26, 28 for selectively displaying on the screen a series of frames of information derived from a storage medium 13; mirrors (22), Fig. 2b (not shown), for directing across the screen a plurality of light beams A-F so as to form a grid-like pattern which can be selectively interrupted by an operator touching the screen to respond to the information displayed; a series of photodetectors 20A-20F positioned to receive the light beams and to register the response of the operator; a circuit arrangement (Figs. 4 and 5, not shown) to compare the registered response with a specimen response; and means responsive to said comparison for moving the medium 13 to display another frame in accordance with a teaching programme. Correct and incorrect answer indicating lights 53, 55, 57, 59 may be provided, together with a removable printer 61 for recording the operator's performance. Auxiliary reward and "punishment" features such as bells and buzzers may also be provided, and audio instructions can be added. The storage medium can be constituted by microfilm, videotape, magnetic tape or other material which can be optically or electrically projected. The viewing screen can be the front face of a television receiver tube. The beams directed across the screen need not be of visible light.
Patent GB-980063-A (GB)
Title: Improvements in or relating to xerographic printing
IPC: G03G15/26
Filed: 1961-01-24
Abstract: 980,063. Printing processes. RANK-XEROX Ltd. (Haloid Co.). Jan. 24, 1961, No. 2830/61. Heading B6C. [Also in Division G2] In a xerographic printing apparatus (see Division G2), a developed powder image on a xerographic plate 50 is transferred to a web 475 of adhesive-coated paper by passage through transfer rollers 470, 471. The transferred image is fixed by superimposing a web 485 of transparent plastic material on the web 475. The webs 475, 485 are rewound on a roll 482. Specification 696,515 is referred to.
Patent GB-860194-A (GB)
Title: Improvements in flaw detection and like systems using some and ultrasonic waves
Inventor: RANKIN ALEXANDER BRYCE CALDER
IPC: G01N29/06
Filed: 1957-01-25
Abstract: 860,194. Sonic and ultrasonic inspection devices. KELVIN & HUGHES Ltd. April 25, 1958 [Jan. 25, 1957], No. 2864/57. Class 40 (7). In a flaw detection or like system a plane divergent beam of pulsed sonic or ultrasonic waves is transmitted through a surface of a medium to be explored, the plane of the beam within the medium is at an angle to said surface, means produce relative movement between the beam and the medium in the plane of beam divergence and a display or recording device provides a two-co-ordinate representation representing the relative movement and the range of an echo-producing object or medium discontinuity. Transmit/receive ultrasonic probe 15 moves over rectangular test-piece 11 mounted in water-containing tank 13 by carriage 16 which drives also potentiometer 21 to produce horizontal time-base 27, vertical (range) timebase 26 being triggered by transmitter 22. The general form of flaw echo display is hyperbolic, Figs. 2a . . . 2d (none shown). In an embodiment for weld testing a reciprocating plastic block directs the beam into the test-piece. In a further embodiment a cylindrical test-piece is rotated at constant speed and a fixed ultrasonic probe contacts its surface, a polar co-ordinate range/bearing display being produced, Figs. 3 and 4a . . . 4d (none shown); testing from the inner surface of an annular body may similarly be carried out.
Patent GB-924486-A (GB)
Title: Dynamic balancing machines
IPC: H03K17/52
Filed: 1961-01-25
Abstract: 924,486. Measuring rotor unbalance electrically. E. R. JACKSON. Jan. 16, 1962 [Jan. 25, 1961], No. 2877/61. Class 40 (1). In a dynamic balancing machine, when pulses dependent on the angular position of an out-ofbalance force are nearly coincident with reference pulses, a signal indicates an unstable measuring condition and causes the phase of one of the pulses to be automatically shifted by a known amount. The two trains of pulses are fed through pulse shaping circuits to terminals I1, I2 of a circuit including triode V. Anode resistor R is high so that the presence of positive pulses at the valve grid are insufficient to cause any appreciable current to pass. When, however, positive pulses at the grid are coincident with or overlap pulses fed to the anode, then valve V will conduct and trigger a thyratron T the pulse shaping circuits determining the degree of coincidence to which the thyratron will respond. The triggering of thyratron T causes a relay PR to become energized, closing contact PR1 and lighting a neon lamp N in response to which the phase of one of the pulse trains is shifted, either by an operator or automatically by the use of a further set of relay contacts. The phase shift may be effected by selecting pulses of opposite sign to the ones used previously or by utilising the output of a pickup spaced 180 degrees from the one used previously. The meter on which relative phase angle is indicated may have a main and an auxiliary scale, their markings displaced by 180 degrees, the auxiliary scale being illuminated only when one of the pulse trains has been shifted. Thyratron T remains struck even though the input to the terminals I1, I2 will now differ by 180 degrees. A switch S1 coupled with a start switch for the machine momentarily opens the thyratron anode circuit whenever the machine is started and if this is held depressed, then the thyratron circuit will be inoperative until the testing speed has been reached. A contact S2 is provided to short-circuit the anode of the valve V to earth whilst the machine is slowing down subsequent to a test. Specification 862,970 is referred to.
Patent GB-607260-A (GB)
Title: Improvements connected with folding perambulators or like carriages
IPC: B62B7/08
Filed: 1946-01-30
Abstract: 607,260. Automatic catches. LAWRENCE, H. A. J. Jan. 30, 1946, No. 2930. [Class 44] [Also in Group XXXII] Two releasable fastenings are employed in holding members of a folding carriage (see Group XXXII) in the unfolded position. One (Fig. 7) retains the free vertical edge of a member 5,' forming the end of the carriage body and hinged at the other vertical edge to a side member of the body, in contact with the free side member 1 of the body: it comprises a slotted bar 19 along the upper edge of the member 5, the slot being adapted to engage beneath the head 20 of a pin sliding in a casing 40 on the side member 1 and forced downwardly by a compression spring 41. The other (Fig. 8) retains a handle member 22, pivoted by means of a flat extension 24 between the webs of a narrow channel member 23 mounted on a side member 1 of the carriage, in the position shown in full lines : it comprises a pin 25 biassed by a leaf spring 26 secured to the channel member 23, the pin 25 being arranged to pass through corresponding holes in the webs of the channel member 23 in the extension 24.
Patent GB-310864-A (GB)
Title: Improved process for the manufacture of artificial silk, from cuprammonium solutions of cellulose
IPC: D01F2/04
Filed: 1928-01-31
Abstract: 310,864. Kohorn, O. F. von, (trading as Kohorn & Co., O.), and Perl, A. Jan. 31, 1928. Ammoniacal-copper cellulose solutions, processes for making filaments from.-The water used as precipitant in the stretch-spinning process for the manufacture of artificial silk from ammoniacal-copper cellulose solutions is freed from ammonia and copper in known manner by heating and, after standing until the copper sludge has settled down, is filtered and used again after cooling without any further treatment. A small amount of caustic alkali may be added prior to the heating in order to liberate the small amount of ammonia which may be present in the form of salts. The ammonia driven off is driven into absorption towers and bound in known manner, for instance as sulphate. The water usually contains small quantities of other salts, e.g. sodium sulphate or carbonate, which cause disturbances in the spinning if they are present in concentration exceeding a certain limit, so that it is necessary to replace a small part of the used water by fresh water, which lias the added advantage of partly effecting the necessary cooling of the heated water but since only a part of the water which has been freed from copper and ammonia by heating, is replaced by fresh water, a pretreatment of the latter for the purpose of expelling dissolved gases is not necessary. Reference has been directed by the Comptroller to Specification 300,572.
Patent GB-337303-A (GB)
Title: Improvements in or relating to tables
IPC: A47B3/02
Filed: 1930-01-29
Abstract: 337,303. Hokanson, A. E., and Wells, E. G. Jan. 29, 1930. Folding tables; tables combined with wringers and other articles.-A collapsable table has a top which is movable or removable to afford access to a carrier bar or like device designed to support a wringer or other domestic machine. Fig. 1 shows an X-frame table comprising legs 10, 11 pivoted together at 12, side bars 13 hinged at 14 and supporting a table-top 25, and a removable platform 28 resting on braces 27 and, by means of its cross-strips 29, locking the X-legs in their open position. Pivoted to the side bars 13 is a carrier 18, 19 for a wringer 17. or other appliance, e.g., a cream separator or a mincer; the side bars 18 have undercut ends 21 which engage with similarly-cut ends 23 of bars 22 pivoted at 14 to the legs 11, and supporting a part 25 of the table top. Before folding up the table, it is necessary to remove the wringer. In a modification, the carrier-bar 18 is pivoted at one end to the middle of one of the bars 13, and supported at the other end by a pivoted stirrup on the other bar 13; this end may be removed from the stirrup and the bar dropped. In other modifications, the top consists of two end sections 45, 46, and a removable centre section 49, Fig. 7. and is supported on knuckle-jointed side bars 36, 37 connecting the top ends of the X- frame legs 10, 11. Each member 37 has a U- shaped bracket 41 carrying a removable carrierbar 46 for the wringer &c. 17. Braces 50 connect the legs 10 and the cross-bars 49 connecting their top ends; or alternatively the bar 49 is connected by hooks to a cross-bar connecting the bars 36.
Patent GB-524412-A (GB)
Title: Improvements in or relating to dry shaving or hair clipping devices
IPC: B26B19/04
Filed: 1939-01-30
Abstract: 524,412. Dry shavers. ADVANCE COMPONENTS, Ltd., and STAPLETON, A. W. Jan. 30, 1939, No. 3143. [Class 131] A dry shaver of the kind comprising a slotted shear plate against the inner surface of which a cutter element is reciprocated has the shear plate 5, Figs. 1 and 2, formed with a groove 9, Fig. 3, in which is situated a rod 15 for securing it to the handle 4. The slots 6. in the shear plate extend a little way down the groove 9 and also down the bent over outer margin of the plate. The channel shaped cutter 7 having cutting teeth 8 at its upper edges lies wihin the shear plate 5 and is held into engagement therewith by springs 17. It is reciprocated by a motor driven crank 10 engaging a recess 11. Openings 12 in the cutter plate prevent hair cuttings from clogging the apparatus and semicircular openings 13 in the shear plate allow cut hair to fall or be blown out.
Patent GB-1534309-A (GB)
Title: Method of treating fibrous materials to reduce their soluble element content
IPC: B01D11/02
Filed: 1976-01-27
Abstract: 1534309 Washing fibrous materials GESA MARTILLOS NEUMATICOS SA 27 Jan 1976 [27 Jan 1975] 03160/76 Heading C1A [Also in Division Dl] A method of reducing the soluble substance content of fibrous material (e.g. rock wool or amianthus) includes treating the material at least once with the following cycle of operations: placing the material in a tank, passing deionized water to the tank and washing the material, withdrawing the water from the tank and at least partially drying the material in a centrifuge, water withdrawn from the centrifuge being passed to an ion exchanger. The process is repeated until an acceptably low level of soluble elements e.g. chloride or fluoride ion, is achieved. Ionic or non-ionic surfactants may be added to the water. Washing may be accompanied by stirring and elevated or reduced pressure in the tank. The water may be heated.
Patent GB-1159138-A (GB)
Title: R.F. Signal Phase-Modulator System
IPC: H03C3/22
Filed: 1967-01-20
Abstract: 1,159,138. Angle modulation. SOC. ITALIANA TELECOMMUNICAZIONI SIEMENS S.p.A. 20 Jan., 1967 [7 March, 1966], No. 3162/67. Heading H3R. A phase modulation circuit comprises a transformer T having a tapped secondary winding to which is connected a resistor R in series with a voltage dependent capacitance e.g. varactor diode D. The carrier is applied to the transformer primary, and the modulated output is derived between points A and B. In a first modification Figs. 2a, 3 (not shown), greater phase swing is obtained by including an inductance (L) in series or in shunt with capacitance D. In a second modification Fig. 4a (not shown), resistive losses which may give rise to amplitude modulation are compensated by including a resistor (r) in series with the capacitance D and adjusting the tapping point on the transformer. In further modifications linearity is improved by the use of two varactor diodes (D1, D2) each in parallel with an individual inductance (L1, L2) to form two resonant circuits tuned above and the carrier frequency. These two parallel circuits are connected in series with each other, the connecting link between them being from the ends of the two inductors Fig. 5 (not shown), or from tapping points on both or one of them Figs. 6a, 6b (not shown).
Patent GB-230240-A (GB)
Title: Improvements in coupling devices for electric cables and the like
IPC: H01R4/38
Filed: 1924-02-07
Abstract: 230,240. Kay, F. Feb. 7, 1924. Couplings.-Tee connectors for cables comprise two clamping members a, b having a recess c for a cable between them, the lower member b being provided with a hollow screw-threaded pillar d extending through the member a which is clamped by nuts g, h on the pillar d. Several clamping members a may be used for securing several cables. A cable n to which the cable m is to be connected is secured in the recess e in the pillar d.