baber/WOPTO huggingface dataset:
Patent GB-1376101-A (GB)
Title: Electromagnetic brake
IPC: B61H7/08
Filed: 1973-04-27
Abstract: 1376101 Electromagnetic track brakes on vehicles KNORR-BREMSE GmbH 27 April 1973 [28 April 1972] 20248/73 Heading F2E An electromagnetic brake for a railway vehicle comprises a plurality of magnet structures made of soft steel of high magnetic permeability and low magnetic coercivity each carrying polepieces 10 which are made of ferritic cast iron with modular graphite, the magnet structures being arranged in succession along an axis extending along the rail and the polepieces lying adjacent to the rail, the brake including an excitation coil (3, Fig. 1, not shown) preferably fed with A.C. by cables 5, 6 which on energization causes the magnet structures to co-operate with the rail to produce a braking effect. As shown, the magnet structures are supported displaceably on the coil former 2, through which the magnetic field extends transversely o f the common axis of the structures, and are separated by plates 4. Each magnet structure is a U-shaped member composed of two identical half-members 7, Fig. 4, secured together by screws 8, Fig. 2, so that the web or bridge part of the complete member, thereby formed, extends through the excitation coil. Secured to the lower end face 16 of each half 7 by screws 9 is an L- shaped polepiece 10, Fig. 4, having a partlytriangular shape in plan, Fig. 6, and a lower end face for engaging the rail which is wholly triangular. When the two halves of a magnet structure are secured together, the chamfered upper portion 14 of polepiece 10 projects under the lower face 12, Fig. 5, of the other half: see also Figure 3. To inhibit tilting in the direction of travel the projecting upper face 13 of one polepiece 10 fits under a projection 11 of an adjacent half member 7. Adjacent polepieces are separated by magnetically-insulating members 15, each secured to a polepiece 10 and having its lower face in a common plane therewith. In Figs. 7 to 9 (not shown), the rail-contacting faces of the polepieces are quadrangular.
Patent GB-245684-A (GB)
Title: Improvements in boots and the like and in methods and means for making the same
IPC: A43B7/14
Filed: 1924-10-16
Abstract: 245,684. Benda, J. Oct. 16, 1924. Connecting uppers to insoles and soles. -Boots and shoes of the kind in which the margin of the insole is bent upwards so that the middle part is placed flat against the outer sole obviating filling, are now characterized by a margin 2 of substantial width maintained by the insertion of a leather or like strip 5 of triangular cross-section between the inner and outer sole 7 behind the sewing lip. The lip is composed of a strip cemented to the insole so that the insole can be made of thin material and adapt itself to the formation of the cavity filled by the foot.
Patent GB-188048-A (GB)
Title: Improvements in and relating to the control for dynamo electric machines
IPC: H02P1/46
Filed: 1921-07-28
Abstract: 188,048. British Thomson - Houston Co., Ltd., (General Electric Co.). July 28, 1921. Alternating-current motors; motors, controlling; rotary converters.-Relates to the control of a synchronous motor, particularly in a motor generator set where the alternating - current supply is liable to fail and the generator is subject to sudden changes of load which may cause the motor to fall out of step. The field member of the synchronous motor 1 is provided with a field winding 3 and a short-circuited winding 4, the winding 3 being supplied with continuous-current from the generator 10 driven by the motor, and means being provided for opening the field-winding circuit 3 when the slip frequency of the motor exceeds a predetermined percentage of the frequency of the supply 5. The means provided comprise a switch device 30 having a contact 35 which in its normal position engages with the contact 36 so that the electromagnetic switch 20 is energized to close the field winding circuit 3. The device 30 consists of a balanced lever 33 pivoted at 34 and connected at its ends to the cores 38, 39 of electromagnets. The coils 40, 41 are connected one through a non-inductive resistance 42 and the other through an inductance coil 43 to the supply circuit 5. The coils 45, 46 are similarly connected through slip-rings 49 to the armature winding of the exciter of the machine 10. The coils 40, 41 and 45, 46 are so arranged and designed that at a predetermined difference in the frequencies of the currents energizing them the switch is operated to bring the contact 35 into engagement with the contact 37 and break the circuit through the contact 36. The field winding circuit 3 is thus broken and the trip coils 7, 15 of the main circuit breakers 6, 14 are energized to disconnect the motor 1 from the supply main 5 and the generator 10 from the mains 11, 12. The relay 50 is constructed so that it does not close its contacts until it has been energized for a certain length of time. Instead of opening both circuit breakers one only may be opened if desired. In the circuit of the relay 50 are the contacts of a low voltage relay 51, and in the circuit of the relay 20 are the contacts of a current relay 52. The relay 51 prevents energization of the coils 7, 15 should the supply circuit 5 fail, and the relay 20 prevents the field winding circuit from being energized should the current supplied to the motor fall below a predetermined value. Specification 184,278 is referred to.
Patent GB-1224713-A (GB)
Title: Improvements in or relating to rolling mill control systems
IPC: B21B37/16
Filed: 1969-04-21
Abstract: 1,224,713. Automatic control of rolling mills. ALLEGHENY LUDLUM STEEL CORP. April 21, 1969 [April 22, 1968], No.20333/69. Heading G3R. A gauge varying device in a rolling mill is controlled in response to the difference between a reference value and the exit gauge as calculated by measurements of the input gauge and the relationship between actual input and output lengths. The input gauge G1 is measured by an X-ray device 28 whose signal is gated to a binary digitizer 36 at intervals corresponding to 1 foot length of strip, measured by a roller 40, pulser 42 and pulse counter 48. The gauge G1 is supplied to a computer 64 via a shift register 38 which acts as a variable delay device, the signal being taken from a stage selected by a motor operated device 88 according to the speed of the strip, measured at 40, 82. This allows for transit time between gauge device 28 and the rolls bite. The computer multiplies G1 by the ratio of L1 to L4, L1 being pulses corresponding to the input length (1 ft) between measurements and L4 the output length (measured at 50, 52, 56) during the same time. The computer output is compared at 68 with a desired output gauge reference 62d, and it is checked (and adjusted if necessary) against the average value of the actual output gauge measured by a second X-ray device 32. Correction is applied, however, before any gauge error reaches device 32. Correction may be by adjustment of strip tension, but as shown the screw downs of the first two stands are adjusted, equally, in response to the output of comparator 68. These screw downs are also adjusted individually to balance the average roll force on each stand, which is measured at 90 and 92. The screw down of a third and final stand is adjusted only in response to the load on it, to keep the steel shape constant. In an alternative embodiment Fig. 2 (not shown) the balance between the first two stands is not controlled but there is a further X-ray device between these stands whose average output is compared with a reference to control the first stand only. In another alternative Fig. 4, (not shown) the invention is applied to the first two stands as before but the first stand is additionally controlled by its own, similar system in which the gauge leaving the first stand is calculated, the length (L2) between the first two stands being measured for this purpose, and the second stand is additionally controlled by a further, similar, system but which calculates the gauge entering the third stand (equal to that leaving the second) from the length (L3) between the second and third stands, the final exit length (L4) and the final exit gauge (G4).
Patent GB-211798-A (GB)
Title: Improvements in lamellar carriage-springs and means for lubricating the same
IPC: F16F1/24
Filed: 1923-08-10
Abstract: 211,798. Weber, R. Burger- Aug. 10, 1923. Laminar springs.-In a laminated spring, alternate leaves 2, 4, 6 are provided with tapering longitudinal slots 11 adapted to receive lubricant from a grease box 13 through a central bore 9 and slots 10 in a centrally-disposed bolt 8. To avoid weakening the spring, the slotted leaves 2, 4, 6 are made thicker than the adjacent leaves 1, 3, 5, 7. In a modification, the central bore 9 in the bolt communicates with longitudinal grooves therein.
Patent GB-1339063-A (GB)
Title: 3-carboxy 4-oxo substituted naphtyridine and quinoline compounds
IPC: C07D471/04
Filed: 1971-04-19
Abstract: 1339063 Process for preparing derivatives of 4-oxoquinoline-3-carboxylic acids and their naphthyridine analogues SUMITOMO CHEMICAL CO Ltd 19 April 1971 [28 Jan 1970 18 Feb 1970 23 Feb 1970 24 Feb 1970 (2)] 20538/71 Heading C2C A process for preparing compounds of formula comprises heating the corresponding 4-RO- quinoline or -naphthyridine, optionally in presence of an acid catalyst or an alkylating agent ; when the product is an alkyl ester it may be hydrolysed to the corresponding carboxylic acid. The starting material may be prepared by reacting the corresponding 4-halo-quinoline or -naphthyridine with ROH. In the formula, Z is CH or N; R is C 1-4  alkyl, C 2-4  alkenyl, cycloalkyl or C 1-4  hydroxyalkyl; R 1  is H or C 1-4  alkyl; when Z is N, R 2 , R 3  and R 4  are each H*, halogen*, C 1-4  alkyl*, alkoxy* or hydroxyalkyl, (C 1-4 - acyloxy)-C 1-4 -alkyl, CO 2 H, aralkyl, aralkenyl, trihaloalkyl* or CN*, and when Z is CH, R 2 , R 3  and R 4  are each any of the radicals*, NO 2  or alkylmercapto, or any 2 of them represent 6,7- or 7,8- (up to C 4 ) alkylene or alkylenedioxy.
Patent GB-819003-A (GB)
Title: Gain stabilizer
IPC: H03F1/54
Filed: 1957-06-28
Abstract: 819,003. Valve amplifying supply circuits. BENDIX AVIATION CORPORATION. June 28, 1957 [Aug. 14, 1956], No. 20544/57. Class 40 (6). The gain of an amplifier is stabilized against variations in anode supply voltage by connecting a voltage regulator tube between the positive side of the anode supply and an adjustable tap on the cathode resistor. The tap 11 of the resistor 3 is adjusted so that the variation in supply voltage 6 provides sufficient bias variation to maintain constant gain. In a receiver the invention should preferably be applied to the final intermediate frequency amplifier. It is stated that, in a nine-valve receiver having the invention applied to one stage, supply variation from + 10 to - 20 per cent resulted in an output variation of only 2 db.
Patent GB-153406-A (GB)
Title: Improvements in cases or holders for spark plugs
IPC: H01T13/08
Filed: 1919-08-21
Abstract: 153,406. Grose, R. S. Aug. 21, 1919. Fittings, internal; partitioned and cellular boxes; treatment of contents, designed to permit. -A case for spark-plugs comprises an enclosed base portion or well, which may be partitioned at h, containing petrol or other cleaning-fluid g, the screwed parts of the plugs being inserted into threaded holes d in the top of the well. The shaking of the fluid during transit ensures the points of the plugs being kept clean. The well is shown provided with a hinged cover b secured by a clip j, but a cover held in place by spring clips or screwed on to the wall may be employed.
Patent GB-1423643-A (GB)
Title: Process for producing yeast cells
IPC: C12N1/32
Filed: 1974-05-09
Abstract: 1423643 Yeast AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY MINISTRY OF INTERNATIONAL TRADE & INDUSTRY and MITSUBISHI GAS CHEMICAL CO Inc 9 May 1974 [11 May 1973] 20594/74 Heading C6F Saccharomyces metha-nonfoams nov. sp. (FERM P-1927) (NRRL Y-8026) is aerobically cultured in a medium containing methanol as the main carbon source, at a temperature in the range of from 10‹ to 37‹C and at a pH in the range 2-7 and the resulting yeast cells are recovered from the culture medium and dried. The methanol concentration, which should not exceed 6 wt per cent, may suitably be maintained at 0.05 to 1À5 wt per cent by supplementing with fresh methanol in an amount corresponding to the amount of methanol consumed.
Patent GB-700076-A (GB)
Title: Improvements in or relating to milling machines
IPC: B23Q1/48
Filed: 1952-08-18
Abstract: 700,076. Machine tool details. BEICHLE, H., [trading as BEICHLE, WERKZEUGMACHINENFABRIK GIESSER, H.] Aug. 18, 1952 [Aug. 16, 1951], No. 20658/52. Class 83 (3) A milling machine comprises a face-plate @ mounted on a slide 13 adjustable transversely of a hollow work-spindle 11 by an eccentric threaded spindle 15, the face-plate and slide parts having openings which can be aligned to allow a collet chuck to be inserted in the spindle. The face-plate is angularly adjusted by a gauge 23 and locked by bolts 16. The collet 19 is actuated by a sleeve 20 sliding in a mounting piece 18 which is removed by a nut 21.
Patent GB-626590-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus
IPC: B67D7/08
Filed: 1947-07-30
Abstract: 626,590. Liquid-dispensing apparatus. AVERY-HARDOLL, Ltd., and FRASER, J. July 30, 1947, No. 20683. [Class 116] [Also in Groups XIX and XXXII] In apparatus for indicating the cost of and number of units of liquid delivered by a liquid-dispensing apparatus (see Group XIX) an arm 52 rigid with the actuating handle moves into engagement with a ledge 51 on one arm of a bell-crank lever 48 as the handle is moved to the "off" position after dispensing the required amount so that the handle cannot be actuated again until zeroizing is completed and an arm 44 engages the other arm of the bell-crank lever 48 to free the arm 52 and so unlock the handle.
Patent GB-258718-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H03F1/54
Filed: 1925-08-19
Abstract: 258,718. Electrical Improvements, Ltd., and Grant, L. C. Aug. 19, 1925. Thermionic valve circuits. -Relates to thermionic valve systems in which a valve whose filament is normally non-emissive comes automatically into action on the failure of a normally active valve, and consists in the addition of a resistance which prevents the latter valve from being burned out if the dormant valve should fail when not in use. In the example shown the resistances F, G, H are so chosen that the active valve A takes the correct working current of 0.6 amp., while the current through the dormant valve D is kept down by the resistance F to 0.5 amp., which is too low for electron emission. If the valve A fails, however, the valve D is no longer shunted, and the current therein rises to the working value of 0.6 amp. The invention consists in putting in series with the active valve A a resitance C which, if the valve D fails while A is still working, keeps the current through the valve A down to a safe value of (in this instance) 0.69 amp. Where the filament supply is alternating the impedances C, F, G are reactances, and they may form the three secondaries of a 4-coil supply transformer. An alarm K may indicate failure of either valve, and iron wire vacuum resistances J or other impedances may be provided for swamping small fluctuations of current. The valves A D may be replaced by banks of valves.
Patent GB-1339950-A (GB)
Title: Wiper blade for cover glasses of the lamps of a vehicle
IPC: B60S1/60
Filed: 1971-04-19
Abstract: 1339950 Headlamp wiper blade SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 19 April 1971 [29 Jan 1970] 20768/71 Heading A4F A wiper for the cover glass of vehicle headlights comprises a resilient wiper blade 12 with a flanged holding rib held in a slot in a resilient reinforcing rail 10 having a pair of lugs 11 integral with the rail, positioned substantially at its centre, pointing in a direction away from the wiper blade, each lug having a bore with a common axis suitable to receive a pivot pin attached to a wiper arm. A wiper arm is received in a bore (16) Figs.1 and 2 (not shown) of a member (13) rivetted to the lugs or a bore 17 of a bearing 18 between lugs 11.
Patent GB-712494-A (GB)
Title: Improvements in or relating to methods of securing metal articles to thermo/plastic materials
IPC: B29C65/02
Filed: 1951-09-03
Abstract: 712,494. Heating by electromagnetic induction. GENERAL ELECTRIC CO., Ltd., and SANDERSON, R. W. W. Aug. 25, 1952 [Sept. 3, 1951], No. 20769/51. Class 39 (3) A method of joining metal articles, e.g. electrodes 10, to thermoplastic material 11, e.g. polystyrene casings 11 of electric cells, comprises heating appropriate parts of the articles 10 by H.F. induction to soften the plastic in contact therewith, and allowing the parts to cool whilst maintaining pressure between the parts and the plastic 11. The plastic 11 may be of the kind which subsequently becomes thermosetting and if it is of a kind which does not wet the metal to which it is to be joined, an intermediate plastic, e.g. a lacquer, may be first coated onto the metal surface. The portions 10, 11 are mounted on a vertically movable mandrel 22 carried on a rotatable turret 20 which brings the portions 10, 11 beneath an inductor 32. A tappet 26 raises the mandrel 22, a spring-urged pressure member 36 contacting the portions 10, 11 which are heated for a few seconds before being lowered for cooling, still under pressure from member 36.
Patent GB-1070194-A (GB)
Title: Improvements in and relating to electrical delay lines
IPC: H03H9/30
Filed: 1964-05-20
Abstract: 1,070,194. Semi-conductor devices. SOCIETE D'ELECTRONIQUE ET D'AUTOMATISME. May 20, 1964 [June 5, 1963], No. 20774/64. Heading H1K. [Also in Division H3] A delay line comprises a body of monocrystalline semi-conductive and piezo-electric material having at or adjacent opposite ends two regions acting as electrical-to-mechanical and mechanical-to-electrical transducers respectively, with D.C. bias sources connected between the ends and a non-rectifying contact at the centre of the intermediate portion of the body, which is of opposite conductivity type to the end regions. The material may be hexagonal zinc or cadmium sulphide, cubic zinc sulphide, or an A III B v  compound such as gallium arsenide or phosphide, rendered P or N conducting by doping e.g. with zinc, cadmium, germanium or tellurium. The transducing regions are formed by establishing PN junctions in the material (e.g. by diffusion, deposition or alloying), which when polarized by external batteries produce regions of high resistance. Thus in Fig. 2 junctions are formed at 12 and 13 by diffusing zinc or a zinc-gold alloy into N-type gallium arsenide and an ohmic contact made at 6 by a localized silver-tellurium alloy. The junctions are biased in the directions shown by batteries 7, 8 and a signal source 9 joined in series with one of the batteries. The alternating field in the space-charge zone 14 produces an alternating elastic stress in the material which is propagated down the material as a longitudinal mechanical wave to the similar space-charge region 15 at the far end. Here the wave generates an electric signal which is detected or utilizedat 10. No reflection occurs if the resonant frequency of the region is the same as that of the signal, this frequency being controlled by the D.C. bias. If the regions are located on top of the material instead of at the ends the mechanical wave will be transverse (Fig. 4, not shown). The material should be cut so that the crystallographic axes are suitable for the mode to be propagated. The delay time depends on the distance between the space-charge regions and this can be altered by varying the thickness of the regions with the applied bias. Reference has been directed by the Comptroller to Specification 1,015,559.
Patent GB-1098620-A (GB)
Title: Data processing apparatus
Inventor: KESLIN ROBERT
IPC: G06F11/10
Filed: 1966-05-11
Abstract: 1,098,620. Digit-by-digit processing apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 25, 1966 [May 11, 1966], No. 20781/66. Heading G4A. In a data processing apparatus including two input registers A and B each able to accommodate words of four parity checked bytes (each byte comprising 8 data bits and 1 parity bit) and an arithmetic or logical unit having a capacity equal to only four bits (i.e. one decimal digit), means are provided for operating on digits one at a time and for regenerating parity bits at each stage of the operation. As shown (Fig. 1), selected decimal digits from the registers A and B are transferred to the logic connect and carry generator circuits of the A.U. by way of straight-cross circuits 24, 22 (which are associated with parity check circuits 20). The resulting decimal digit together with the unprocessed (C) digit from register B is fed to the output register (of one byte capacity) at the bottom of Fig. 1. Using entirely separate logical circuits, a new parity bit P is generated from the two processed input digits (A and B) and the nonprocessed digit C. The resultant parity checked byte is then returned to register B and the next digits dealt with (by switching straight-cross circuits 24, 22 to the other digit of the same byte or by stepping on to the next byte). Detailed description of the components shown generally in Fig. 1, is given with respect to Figs. 2-13 (not shown). Instead of decimal operations, hexa-decimal (radix 16) or pure binary operations, are possible. Sixteen different logical operations on the input date are provided for, including complement addition and exclusive or.
Patent GB-1418861-A (GB)
Title: Heating or cooling device
IPC: F24D3/16
Filed: 1973-01-09
Abstract: 1418861 Space heating and cooling device NORDZENT TEKNIK AB 9 Jan 1973 [21 June 1972] 20801/75 Divided out of 1418351 Heading F4S A space heating or cooling device comprises a plurality of heat-conducting metal elements, e.g. 4, 5, 6 fitted to a tube or tubes 1 in which flows a heating or cooling fluid, said elements together forming a rectangular box-shaped structure enclosing the tube or tubes, adjacent elements of said plurality being interconnected by hook formations on one element engaging in recesses in the other element. The device may include means, e.g. a slot 15, enabling it to be suspended, e.g. by members 18, from a ceiling, Fig. 9, or against a wall, Figs. 1 and 5. Or the device may itself form a false ceiling (Fig. 10). A typical arrangement shown comprises intermediate elements 4 and end elements 5, 6. Interconnection is by hook members 11 on wall extensions 10 of one element, which interlock with a snap-action in recesses 12 of the adjacent element, the adjacent portions 8, 9 of the two elements being shaped to receive the tube 1. In other arrangements (Figs. 6, 7) the tube or tubes are sandwiched between two plate-like members together comprising an element. In a further arrangement (Fig. 8), adjacent elements are identically formed where they interconnect and grip the tube. Where as shown in Fig. 1, the tube 1 is a sinuous tube with bend portions extending axially beyond the elements 4, 5, 6, the bend portions are enclosed in box-like structures 7.