baber/WOPTO huggingface dataset:
Patent GB-302246-A (GB)
Title: Improvements relating to carriage-returning mechanism for typewriting machines
IPC: B41J11/24
Filed: 1928-12-11
Abstract: 302,246. Royal Typewriter Co., Inc., (Assignees of Degener, G. O.). Dec. 12, 1927, [Convention date,]. Carriage-returning mechanism. - In a poweroperated carriage-returning mechanism, the carriage-returning key releases a latch and thereby permits a driving-clutch to close, and the carriage moves a member in one direction to open the clutch, and in another direction to prevent the clutch from being again closed until the carriage has made several letter-spacing movements. In the mechanism shown in plan and rear elevation in Figs 1 and 3 respectively, a motor M drives a shaft 3 having a worm 4 gearing with a wormwheel 5 on a shaft 6 provided with a loose pinion 13 which is geared to a spring drum 17. A clutch member 12 on the pinion co-operates with a normally disengaged clutch member 10 provided with a pin 9 engaging a pin 8 on the worm-wheel. The clutch member 10 is movable axially by means of a spring-urged lever 49. The spring drum is connected by a tape 17<1> to an arm 19 on a shaft 19<1> which is mounted in a bracket G on the carriage B and is provided with an arm 22 connected to the line-spacing lever D. A member 39, universally mounted on pivots 40, 41, has a lug 41<1> normally engaging a latch con. sisting of a bell-crank 38 which is connected by linkage 36, 32, 31 to the carriage-returning key. The lug 41<1> abuts on a slide 43 which is connected to a bell-crank 48 engaging the lever 49. On depression of the carriage-returning key, the motor is started, the latch is raised, and a spring 51 causes the lever 49 to close the clutch and thereby initiate return of the carriage. The lever causes the slide 43 to rock the member 39 about the pivot 41, and the lug 41<1> then stands at the rear of a roller 56<a> mounted on a post 56. When the carriage approaches line-end position, a roller 52 thereon engages a lug 53 on the member 39 and bends rearwardly the upper end, the roller 56<a> serving as an abutment for the lug 41'. When the carriage reaches line-end position, a screw x on the margin stop F engages a lug 54 on the member 39, and the member is rocked about the pivot 41. Thereby, the slide 43 and lever 49 are returned and the clutch is opened. When the lug 41<1> rides off the roller 56<a>, the lower end of the member springs forward and the lug abuts on the side of the roller so that the carriagereturning key is disabled from releasing the member and thereby initiating carriage-return. When the carriage has made ten letter-space movements, the roller 52 rides off the lug 53, and the member 39 is rocked by gravity about the pivot 40, the lug 41<1> then occupying its normal position and the carriage-returning key being again enabled to initiate carriage-return. The motor may be provided with resilient mounting O, P and the coupling 2 described in Specification 303,109.
Patent GB-1213756-A (GB)
Title: Method of producing the pilot frequencies 84.08 kcps and 411.92 kcps in carrier-frequency systems
IPC: H04J1/06
Filed: 1969-07-21
Abstract: 1,213,756. Frequency synthesizers. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. July 21, 1969 [July 22, 1968], No.36604/69. Heading H3F. The pilot frequencies 84.08 kHz and 411À92 kHz used in carrier frequency systems are produced using initial frequencies which are multiples of 4 kHz. The frequency 84.08 kHz is obtained by modulating the frequency 3844 kHz with the frequency 360 kHz, obtained by multiplication from the frequency 60 kHz, the multiplier being followed in the embodiment by a 360 kHz bandpass filter. The resulting sum frequency of 4204 kHz is then divided by 50 in a divider. The frequency 411‹92 kHz is derived by modulating the frequency 496 kHz with the pilot frequency 84À08 kHz, the difference frequency being picked out in the embodiment by a bandpass filter.
Patent GB-409453-A (GB)
Title: Improvements in and relating to liquid fuel fired furnaces for steam boilers and the like
IPC: F23D11/36
Filed: 1933-11-25
Abstract: 409,453. Liquid - fuel furnaces. COMBUSTIONS, Ltd., 37, Walbrook, London, and HUBBARD, W. A., 25, Longcroft Green, Welwyn Garden City, Hertfordshire. Nov. 25, 1933, No. 36735/32. [Class 51 (i).] Regulating fuel and air supply.-In a liquidfuel furnace, particularly for steam boilers, in which dampers controlling the supplies of primary and secondary air are interconnected with a valve 1 in the fuel supply pipe 2 so as to be operated simultaneously therewith, the valve 1 is actuated automatically and is connected to the primary air damper 13 through lever 10, link 11, and crank 11<1>, and to the secondary air damper 6 through lever 10 and a chain and pulley device 8, 9. The two levers 10 are pivoted at 101 and engage between spaced collars 41 on the fuel-valve rod 4, the latter extending upwardly into the casing 5 which houses means for effecting a movement of the valve 1 towards its closed position when the steam pressure or the temperature of the water in the boiler exceeds a predetermined maximum. The effective area of the secondary air admission opening 7 is regulated by a pair of sliding doors 15 adapted to be secured in the adjusted position.
Patent GB-1117786-A (GB)
Title: Vehicle anti-skid braking systems
Inventor: BULGIN DOUGLAS
IPC: B60T8/34
Filed: 1964-09-11
Abstract: 1,117,786. Anti-skid braking systems. DUNLOP CO. Ltd. 24 Aug., 1965 [10 Sept., 1964], No. 37015/64. Heading F2F. In an anti-skid braking system for a vehicle wheel a tandem-type master cylinder assembly 1 has high (6) and low (5) pressure chambers provided with independent fluid connections 13, 14 to a control valve 19 arranged selectively to connect either of the pressure chambers to a brake operating mechanism 20, the control valve 19 being normally arranged to connect the high-pressure chamber 6 to the brakeoperating mechanism, and a skid sensing device (not shown) is arranged to actuate the control valve 19 to interrupt the supply of fluid to the brake-operating mechanism from the highpressure chamber 6 during any period when the wheel is locked or when a skid is imminent and to connect the low-pressure chamber 5 to the brake-operating mechanism during the latter period. The skid sensing device may be of the rotary-inertia type or a governor-type device or the control valve can be operated electrically by an electrical skid sensing device. The system may be operated by the driver of the vehicle without power assistance or a conventional servo device may be employed to assist the effort applied by the driver to the push rod 2.
Patent GB-1431899-A (GB)
Title: Plastics-film containers and packages
IPC: C08J7/052
Filed: 1972-08-09
Abstract: 1431899 Packages IMPERIAL CHEMICAL INDUSTRIES Ltd 26 April 1973 [9 Aug 1972] 37152/72 Heading B8C [Also in Divisions B2 and B5] A plastics film pouch for holding carbonated beverages, is closed except at a filling opening by gas-tight seals in which inner surfaces of the pouch are heat-sealed together, and is formed of biaxially oriented tubular film of polyethylene terephthalate internally coated with a copolyester containing residues of both ethylene glycol and terephthalic acid and residues of a dicarboxylic acid other than terephthalic acid and/or of a glycol other than ethylene glycol, the copolyester being obtainable by reacting a mixture of terephthalic acid and ethylene glycol containing also:- (a) one or more dicarboxylic acids other than terephthalic acid in an amount of from 0 to 25 mol. per cent of total acid present (preferably 10 to 20 mol. per cent); and/or (b) one or more glycols other than ethylene glycol in an amount of from 0 to 50 mol. per cent of total glycol present: provided that, when the amount of said other acid is less than 1 mol. percent of total acid present, an amount of glycol or glycols other than ethylene glycol is present, this amount being at least 10 mol. per cent of the total glycol present. In the preferred method, the copolyester and the polyethylene terephthalate are coextruded in the initial production of the tubular films, which is then biaxially oriented. The wall of the biaxially oriented tubular film may be from 0À00075 to 0À0175 inch thick and the internal coating thereon may be from 0À00004 to 0À0004 inch thick. In the example a copolyester obtained from ethylene glycol and a mixture of terephthalic and isophthalic acids containing 13 mol. per cent of isophthalic acid is used. Pouches so made, may be readily heat-sealed at temperatures of 190 to 140 C. as in Specification 1,302,450. A package may be made by sealing the filling aperture after filling, as in Specification 1,302,450.
Patent GB-1074638-A (GB)
Title: Apparatus for drying a web of material such as dyed textile material
IPC: F26B3/28
Filed: 1964-09-11
Abstract: 1,074,638. Drying webs. MASCHINENFABRIK FRIEDRICH HAAS G.m.b.H. Sept. 11, 1964 [Sept. 21, 1963], No. 37239/64. Heading F4G. A web-drying apparatus comprises a vertical shaft in a housing 4 through which the web 6a upwardly passes between gas or electricallyheated radiators 9, 10 which are shieldable from the web by metal screens 13 movably mounted on rods 14, 15, and also in contact with hot air circulated over the radiators by a fan 30. The air from the fan 30 is divided into two streams to pass first through two series of heaters 19, 20 in passages formed between the housing and perforated dividing walls 18a, 18b provided behind the radiators whereafter it passes vertically downwardly to the base of the shaft for passage upwardly with the web and through valves 29 for recirculation by the fan. A portion of the air flows through perforations in the walls 18a, 18b to flow over the heaters and to project on to the web from both sides, at right-angles to the direction of movement of the web. Various positions and air boxes may be provided to project the air on to the web and a control device is provided whereby non- movement of the web causes the screening elements to be positioned in front of the radiators, the hot air to be drawn from the shaft and the hot air supply to be discontinued. The web passes from the shaft to a further heated drying section 5 wherein it passes in circuitous manner about upper and lower rollers.
Patent GB-751719-A (GB)
Title: Improvements in or relating to lifting and transporting apparatus
IPC: B66C3/12
Filed: 1954-12-24
Abstract: 751,719. Winches. BARTELS, F. Dec. 24, 1954, No. 37314/54. Class 78 (5). Lifting and transporting apparatus comprises a drum 12, having wound on it a rope for transporting a load-carrying device, a second drum 33 having wound on it a rope for returning the load-carrying device to its original lifting position, and an operating handle 14; which handle when moved in one direction engages the first drum with a driving-wheel to cause the load to be transported, and when moved then in the opposite direction successively disengages the first drum, engages the second drum and (finally) disengages the said second drun. As shown, handle 14 (weighted at its free end) is pivoted at 15 so that, when the handle is raised, it causes bearing 9 to slide upwards in slot 10 and thus drum 12 to be - driven by friction driving wheel 7. At the same time, through telescopic link 18 and bellcrank 19, catch-bar 27 is moved rightwards till pin 36 engages in notch 35 formed on said catchbar. Accordingly, when the handle is now moved downwards to an intermediate position, the engagement of notch and pin causes rocker bar 22 to pivot on fixed framework 20, 21 so that shaft 30 of drum 33 moves to the left and said drum engages the driving wheel 7. At the same time this partial downward movement of the handle lowers shaft 8 and disengages drum 12. The second and final downward movement of handle 14 causes pin 36 to escape from notch 35 so that drum 33 is disengaged from the driving wheel 7. The apparatus may be used for lifting hay from a vehicle to a hayrick by means of a grab.
Patent GB-1280685-A (GB)
Title: Load-sensitive devices
IPC: B60T8/18
Filed: 1969-07-25
Abstract: 1280685 Regulating braking in dependence on vehicle load KNORR-BREMSE GmbH 25 July 1969 [26 July 1968] 37499/69 Headings G1W WE3K6H WE3JX WE3R4 and WE3C2B A load sensitive device for a vehicle (e.g. a rail vehicle) is mounted between the vehicle frame 4 and a spring suspension 2 on the running gear 3 and comprises valves 62, 64 and 68, 8 for controlling the pressure in a chamber 6 which is connected by a connection 7 to a braking device (not shown) the chamber 6 being closed by a diaphragm 8 which is loaded in proportion to the vehicle weight by an elastomeric element, 12<SP>1</SP>, situated between the diaphragm 8 and a pressure plate 9 bearing on the spring suspension 2, an element 11<SP>1</SP> also being provided which transmits the vehicle weight to the spring suspension 2 and thence to the elastic element 12<SP>1</SP>. When the load on the vehicle frame 4 is increased the element 11<SP>1</SP> is subjected to increased pressure, a certain fraction of which is transmitted via the element 12<SP>1</SP> to the diaphragm 8 to thereby lift a valve tube 63 and open the valve 62, 64; compressed air then enters chamber 6 through a conduit 71 until the pressure has increased sufficiently to return the diaphragm 8 to its original position and close the valve 62, 64. When the vehicle load is decreased the resulting excess pressure in chamber 6 causes the diaphragm 8 to move away the valve tube 63 to thereby connect the chamber 6 to atmosphere; compressed air will then leave the chamber 6 until the pressure has been reduced sufficiently to return the diaphragm 8 to its original position. In the embodiment of Fig. 2 a self-lapping valve 35 is openable on increasing the vehicle load to allow air to enter a chamber 26 which air then acts  via a diaphragm 17 on a double piston 21, 24. The double piston 21, 24 thereupon presses on a cylindrical rubber element 22 with a force which is reduced on decrease of the vehicle loading to close the valve 35. The element 22 is arranged within an annular element 23 which is compressed by a housing ring 16 to an extent dependent upon vehicle load to cause compression of the element 22. The two elements 22, 23 may be replaced by a continuous rubber element.
Patent GB-1064273-A (GB)
Title: Safety device for a heat exchange system
IPC: G21D3/04
Filed: 1963-09-24
Abstract: 1,064,273. Nuclear power plant. COMITATO NAZIONALE PER L'ENERGIA NUCLEARE. Sept. 24, 1963 [Feb. 6, 1963], No. 37529/63. Heading G6C. A safety arrangement for a heat exchanger comprises an expansion vessel connected to the primary loop which contains fluid at a low pressure; a drain tank connected to the primary loop through a valve; and a valve adapted to vent the secondary loop to atmosphere, the secondary loop containing fluid at a high pressure; the valves being actuated by a pressure signal from a pressure sensing device in the primary loop and being dimensioned to keep the primary loop pressure at a lower value than the maximum design pressure. In the arrangement shown in Fig. 1, an organic liquid is circulated by a pump 12 through a nuclear reactor 1 and the primary side of a heat exchanger 6, the secondary side of which contains water at a higher pressure than that of the organic liquid in the primary side. The primary loop is connected to a gas-filled expansion vessel 4 and through a valve 9 to a drain tank 8. The secondary loop may be vented to atmosphere through a valve 10. Valves 9 and 10 are normally closed and are opened on receipt of a signal from a pressure sensing device 11 when the pressure in the primary loop reaches a predetermined value above normal. If a leak occurs in the heat exchanger 6, water from the secondary loop escapes into the primary loop and increases the pressure in the primary loop; the rate of increase is restricted by the expansion vessel 4, and if the pressure rises to a predetermined value the valves 9 and 10 are opened. In a modification, Fig. 2 (not shown), the drain tank 8 is connected through valve 9 to the vessel 4. In a further modification, Fig. 3 (not shown), two connections are made from the primary loop to the vessel 4, one from each side of the heat exchanger.
Patent GB-1395840-A (GB)
Title: Internal cooling for photocathodes
IPC: H01L35/00
Filed: 1973-08-08
Abstract: 1395840 Electron multipliers ACE SOPHISTICATES Inc 8 Aug 1973 [11 Aug 1972] 37622/73 Heading H1D A photomultiplier, which can be of any conventional form, e.g. with a series of dynodes 19 to 28 or of the channel type, Fig. 2 (not shown), has a photocathode such as a gallium arsenide crystal 12 which is cooled by conductive contact with a thermoelectric cooling device 38 using the Peltier effect. The warm side of the device 38 is in thermal contact with the envelope. The device 38 can be in electrical contact with the photocathode 12 or it can be held at a separate potential. The power supply for the thermoelectric device is carried by coaxial conductors 42, 44 to minimize magnetic interference.
Patent GB-1131659-A (GB)
Title: Method of synchronisation in digital communication systems
IPC: H04L7/06
Filed: 1967-08-17
Abstract: 1,131,659. Multiplex pulse code signalling. INTERNATIONAL STANDARD ELECTRIC CORP. 17 Aug., 1967 [20 Sept., 1966], No. 37856/67. Heading H4L. In a digital communication system such as a time division multiplex p.c.m. system, at the transmitter the digit pulses are derived from a train of bipolar rectangular oscillations whose fundamental frequency is equal to half the bit frequency and synchronizing pulses are inserted in antipolar relation to the rectangular oscillations. Fig. 1 shows channel 24 and channel 1 of an 8-bit signal to be transmitted, the gap between channels 24 and 1 being left for a sync. pulse to be inserted. In Fig. 3 the rectangular wave is indicated by dashed lines, respective half-waves being blanked out for each binary 0 and the half-wave (positive or negative) being transmitted for each binary 1. A sync. pulse is inserted as shown with a polarity in opposition to that of the corresponding half-wave of the rectangular oscillation. At the receiver, Fig. 4, the sync. pulses are separated by adding to the received pulses a rectangular wave (shown by dashed lines) similar to but of opposite phase to that used at the transmitter. This results in the sync. pulses being double the amplitude of the signal pulses so that they may be separated by a threshold circuit, Fig. 5 (not shown). A plurality of sync. pulses may be distributed throughout each frame and the receiver provided with an integrating circuit which only transmits a signal after a predetermined number of sync. pulses have arrived.
Patent GB-864587-A (GB)
Title: Improvements in or relating to temperature measuring apparatus
IPC: G01K7/25
Filed: 1958-11-25
Abstract: 864,587. Measuring temperature electrically. WAYNE KERR LABORATORIES Ltd., and FLETCHER, K. A. Nov. 6, 1959 [Nov. 25, 1958], No. 37959/58. Class 40 (1). Temperature measuring apparatus comprises an element 10 of material with a negative coefficient of resistance change with temperature and of which the temperature / resistance relationship is approximately expressed by the formula where T is the temperature, R is the resistance of the element and K is a constant, which element is connected in series with a resistor 12 of magnitude K across a voltage supply source 11 in a bridge circuit comprising further impedances 13 and 14 and a current measuring indicator 15. The impedances 13 and 14 are conveniently resistors and have resistances which are small compared with R and K. A resistor 16 and rectifier 17 connected across the indicator 15 provide a linear relationship between the current indicated and the temperature of the element 10. The element 10 may be made of thermistor material, e.g. a combination of oxides of nickel, manganese and cobalt.
Patent GB-303161-A (GB)
Title: Improvements in or relating to finned tubing
IPC: B21C37/26
Filed: 1928-12-24
Abstract: 303,161. Bundy, H. W. Dec. 30, 1927, [Convention date]. Tubes.-A helical fin is applied to a preformed tube 1 by means of a pair of pressure rolls 5, 6 to which the fin stock 2, 3 is fed, the rolls engaging the strip stock with sufficient pressure to compress it with the greatest compression at the outer edge of the fin portion 2 so as to give it the curvature necessary to grip the said tube. The rolls 5, 6 are arranged substantially at rightangles to each other and are mounted on shafts 7, 10 respectively which are rotated by a shaft 12 through suitable gearing, and the shaft 10 is journaled in an adjustable block 15 so that the roll 6 can be moved towards and away from and angularly with respect to the roll 5. The fin stock is preferably fed to the winding head in a flat strip form and has the L-shape section imparted to it by being drawn through dies 20,. 21 under the action of the pressure rolls. The winding-head is provided with interchangeable lead dies 26, each having a slanting surface 27 which determines the pitch of the fin 2, so that several convolutions of the fin stock may be arranged to abut, overlap, or be spaced apart, and also feeds the tube to the said winding head. The tube may be completed by dipping it in a bath of solder. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction wherein the adjacent convolutions of the stock are arranged to overlap and the preformed tube is dispensed with, an arbor being used during winding. This subject-matter does not appear in the Specification as accepted.
Patent GB-1517854-A (GB)
Title: Tyre cord impregnant
IPC: C03C25/10
Filed: 1976-09-14
Abstract: 1517854 Tire cord impregnants OWENS. CORNING FIBERGLAS CORP 14 Sept 1976 [19 Sept 1975] 38058/76 Heading C3M Compositions useful as tire cord impregnants comprise (1) a vinyl pyridine terpolymer, (2) a polybutadiene latex, (3) a wax emulsion and (4) a resorcinol/formaldehyde resin. The compositions may also comprise styrene/butadiene and/or acrylonitrile/butadiene copolymer latices, formaldehyde, ammonium hydroxide and potassium hydroxide. Examples describe compositions of (1) butadiene/styrene/vinyl pyridine terpolymer, (2) polybutadiene latex, (3) 3/1 paraffin/microcrystalline wax mixture and (4) resorcinol/formaldehyde resin and optionally styrene/butadiene copolymer latex.
Patent GB-1363331-A (GB)
Title: Method for preparing mono- and di-olefine hydrocarbons
IPC: B01J23/28
Filed: 1972-08-16
Abstract: 1363331 Dehydrogenation catalyst A L TSAILINGOLD F S FILIPENKO V A LEVIN T P VERNOVA G A STEPANOV A N BUSHIN B V SIROTKIN V V KOZIN M E BASNER A V EROFEEVA N P PESHKOVA L S TUKTAROVA Y Y KIRNOS R K MIKHAILOV N Z DOLININ J N RAST VOROY and V L ERATOVA 16 Aug 1972 38122/72 Heading B1E [Also in Division C5] Dehydrogenation catalysts comprise oxy compounds of Mo and Mg and absorb in the IR region of the spectrum the wave numbers being 780 cm<SP>-1</SP>, 830 cm<SP>-1</SP>, 890 cm<SP>-1</SP>, 950<SP>-1</SP> and 970 cm<SP>-1</SP>. The catalysts may be supported on silica gel, alumina or aluminasilicates and optionally contain oxy compounds of one or more of the following:- Co, Fe, Cr, V, Si, Ni, Sb, B, Gd, Dy, Ga, Bi, Ti, Zr and Nb. Many examples of oxide combinations are given.
Patent GB-1473760-A (GB)
Title: Foodstuff aromatisation
IPC: A23L27/10
Filed: 1975-09-17
Abstract: 1473760 Flavouring NESTLE SA 17 Sept 1975 [3 Oct 1974] 38189/75 Heading A2B An aqueous medium containing a flavouring or aromatising agent is contacted with a polystyrene macromolecular reticular resin, a first fraction comprising an aqueous medium containing substances not retained on the resin is recovered, substances retained on the resin are recovered using an organic solvent to form a second fraction and one of the fractions is added to a foodstuff to flavour it. Resins specified include cross-linked polystyrenes, polydivinyl benzenes and copolymers of of styrene and divinyl benzene. The material added to the foodstuff may be the crude fraction, or a modified fraction prepared by concentration, selective extraction, fractionation or purification. Examples describe the preparation of agents from tomato concentrate and cocoa butter.