baber/WOPTO huggingface dataset:
Patent GB-351346-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/18
Filed: 1930-09-22
Abstract: 351,346. Safety razors. GILLETTE SAFETY RAZOR CO., 47, West 1st Street, Boston, U.S.A. Sept. 22, 1930, No. 28335. Convention date, Sept. 28, 1929. [Class 30.] In a clamped blade-type safety razor the cap 12, guard 10 and flexible blade 22 are positioned solely by flanges 26, 28, oppositely upturned from the ends of the blade to engage the square ends of the cap and guard. Where the blade is steeply flexed, flexure is rendered independent of the flanges by slotting the blade to leave a narrow medial neck 45, Fig. 3. Where the blade is clamped flat or only slightly curved these slots are not provided. The tubular handle 18 is fixed to the guard and clamping is effected by an internal screw 20 engaging a threaded post 14 on the cap.
Patent GB-723327-A (GB)
Title: Safety device for lifts especially scaffold lifts
IPC: B66B13/18
Filed: 1951-12-03
Abstract: 723,327. Lifts. NORDGARD. P. O. Dec. 3, 1951, No. 28343/51. Class 78 (3). A safety device for retaining a lift cage at a landing when the door 16 is in its horizontal, open, position, comprises a pair of U-shaped bolts 24, Fig. 9, which are moved above lateral projections (not shown) on guides 29 by a linkage operable by the door. This linkage comprises a lever 11 secured to the door, a.link 10 pivoted at 30 to a lever 9 which is fulcrumed to the cage frame at 31 and is connected bv a link 8 to a " T "-shaped member 6 pivoted to the frame at 32, and a pair of links 5 which connect member 6 to the bolts 24 slidable in guides 3; springs 41 being provided to urge the bolts to a retracted position. In operation outward and downward movement of the door to a horizontal position effects extension of the bolts whilst further downward movement of the door, due to upward movement of the cage with the door open or movement of the door to a closed position, retracts the bolts. In a modification, Fig. 2 (not shown), the springs are dispensed with.
Patent GB-778897-A (GB)
Title: Improvements in or relating to automatic gain control circuit arrangements
IPC: H04N5/53
Filed: 1955-10-05
Abstract: 778,897. Automatic gain control. PHILIPS, ELECTRICAL INDUSTRIES, Ltd. Oct. 5, 1955[ Oct. 8, 1954], No. 28385/55. Class 40(5) In a television A.G.C. circuit of the " gated type," in which negatively-modulated video signals are applied, after demodulation, in negative polarity to the cathode of an A.G.C. valve 1, positive-going gating pulses are applied to the anode of the valve 1 from a resistor 13 in the screen-grid circuit of a line time-base valve 2. The pulses are applied via a blocking condenser 8 and an A.G.C. potential of negative polarity is obtained from a tapping on the anode load 'resistor 10. The line-deflexion circuit 14 includes an efficiency diode 20, as a consequence of which no anode current flows in the valve 2 until this diode warrris up: by taking the A.G.C. gating pulses from the screen grid circuit of valve 1 instead of from the anode, the A.G.C. is made operative during this warming-up period.
Patent GB-424823-A (GB)
Title: A process of manufacture of a chain link having a transverse stud and a chain link manufactured in accordance with the said process
IPC: B21L11/14
Filed: 1934-10-04
Abstract: 424,823. Making chains. NAAMLOOZE VENNOOTSCHAP KONINKLIJKE NEDERLANDSCHE GROFSMEDERIJ, Leiden, Holland. Oct. 4, 1934, No. 28481. Convention date, Oct. 28, 1933. [Classes 83 (ii) and 83 (iv)] A stud-link is made by bending a rod 1 to C-shape and inserting a stud 2 with plain connecting surfaces 4 inclined to the axis of the stud. The surfaces 4 may be normal to the plane of the link or curved. The stud is connected to the link by flash welding. In a modification the stud is of T-shape.
Patent GB-1108748-A (GB)
Title: Coaxial cable transmission system
IPC: H04L25/00
Filed: 1965-07-06
Abstract: 1,108,748. Transistor switching circuits. CONTROL DATA CORPORATION. 6 July, 1965 [8 July, 1964], No. 28541/65. Heading H3T. In a coaxial cable transmission system having a driving circuit 10, a coaxial transmission line 90 and a receiving circuit 100 the driving circuit comprises a transformer 54 having a secondary winding connected to the coaxial line 90 and each end of the primary winding connected to an output terminal of different electronic switches 12, 32, the first electronic switch 12 having an input terminal for receiving control signals and an output terminal capacity coupled to the input terminal of the second electronic switch 32 such that the second electronic switch 32 is turned on for a predetermined time interval when the first electronic switch 12 switches to its off state. As shown a signal input causes the first transistor 12 to conduct and produce a pulse output in the secondary winding 60 of the output transformer 54 for transmission along the line 90 and when the signal input is removed transistor 12 turns off and the change in voltage at the collector 18 is transferred to the base 36 of the transistor 32 by a capacitor 28 which causes this transistor to conduct, to produce an equal and opposite pulse output in the secondary 60 to that produced by the first transistor so as to prevent the transformer from building up a bias magnetization. The output from the coaxial line is connected to switch on transistor 102, which returns to its off state when the input signal ends Causing the second transistor 32 to switch on and end the pulse applied along the line. The time at which transistor 32 switches on after transistor 12 switches off depends on the values of resistor 48 and capacitor 28. The transmission system may be used for connecting computer circuits mounted on different chassis.
Patent GB-871065-A (GB)
Title: Improvements in or relating to processes for the manufacture of heat resistant articles
IPC: C22C1/10
Filed: 1957-09-10
Abstract: To produce a heat-resistant article from a metal alloy, having a specific gravity of at least five, a stream of the alloy is dispersed by water under pressure which is expelled from a nozzle surrounding the stream and having an annular outlet so that the water impinges on the stream at an angle of incidence of approximately 15 degrees, wherein a powder is produced from the dispersed melt under oxidizing conditions.  These conditions, and the distance between said outlet and a quenching bath for the dispersed melt, are adjusted so that the powder has an oxygen content of between 0.05 and 1.5% and the oxides in the powder are homogeneously distributed therein and the oxidized powder is compacted and shaped into the article.  Preferably, the alloy is a chromium-nickel steel, or a nickel-cobalt, nickel-chromium or chromium-cobalt alloy.  A suitable apparatus for the above process is described in Specification 765,613.
Patent GB-301376-A (GB)
Title: Ventilators for vehicles or other moving structures
IPC: B61D27/00
Filed: 1928-10-06
Abstract: 301,376. Lectercq, C., and Elias, M. Nov. 28, 1927, [Convention date]. Ventilators; ventilating vehicles and ships.- The draught-inducing current in ventilators of vehicles, ships &c. of the kind wherein two aligned truncated conical tubes 1, 2, Fig. 1, are arranged with their narrower ends in adjacent relation within a chamber 3 communicating by means of a tube 5 with the enclosure being ventilated, is created when the vehicle &c. is stationary and augmented when the vehicle &c. is moving by the exhaust or intake of the engine. In the case of the use of the intake, a pipe 20, Fig. 2, connected with the intake pipe, is disposed in the funnel 2, and where the exhaust is utilized a pipe connected with the exhaust pipe of the engine is disposed in the funnel 1. Fresh air may be supplied' to the enclosure by means of a pipe 18 arranged in the tube 1 as shown in Fig. 1. The tube 5 is connected to the roof 7 of a vehicle by means of a ring 6. Ventilation may be regulated by a perforated plate 15 adapted to be rotated over a correspondingly perforated fixed plate 14 by a stud 13 which is attached to a spring 9 encircling the tube 5. The ventilator may be mounted on the mud-guard of a vehicle and be adapted to supply air for ventilating or cooling purposes to any desired part of the vehicle by means of a tube.
Patent GB-1514284-A (GB)
Title: Preparation of polyphenylene oxides using a manganese(ii)omega-hydroxyoxime chelate reaction catalyst
IPC: C08G65/38
Filed: 1975-07-08
Abstract: 1514284 Polyphenylene oxides GENERAL ELECTRIC CO 8 July 1975 [24 July 1974] 28719/75 Heading C3R Polyphenylene oxide polymers are obtained by reacting a phenol with oxygen in a basic liquid medium in the presence of a chelate complex obtained by reacting a divalent manganese compound with a hydroxyoxime. The chelate may be a mono- or poly-ligand complex and the hydroxyoxime has the formula where each Ra, Rb, Rc and Rd is hydrogen or an acyclic or cyclic organic radical and n is 0 or 1. The polymerization may be carried out in the presence of a primary amine. In examples 2,6- xylenol is reacted with oxygen in toluene or toluene and methanol, aqueous sodium hydroxide being added to make the media basic; the chelate catalysts are obtained by reacting manganous chloride with alpha-benzoin oxime, furoin oxime, acetoin oxime, alpha-hydroxyacetophenone oxime, 2 - methyl - 2 - hydroxy - 4 - pentanone oxime, methylhydroxy - butanone oxime, anisoin oxime, p-dimethyl aminobenzoin oxime and phenylhydroxybutanone oxime; amines are present in some of the reactions.
Patent GB-962861-A (GB)
Title: Improvements in spin-driers for laundry purposes
IPC: D06F49/00
Filed: 1962-07-26
Abstract: 962,861. Spin driers. H. SCHROER. July 26, 1962 [July 27, 1961], No. 28775/62. Heading F4G. A spin drier 1 comprises a lid 9 having a lever 14 extending beyond its pivot 10 which engages below an arm 21a of a bell-crank pivotally mounted lever which is connected through a Bowden cable 24 to one arm 26a of a two-armed lever 26 secured to the housing of the drier motor 3, which lever controls both a motor switch 29 and a brake shoe 32. The lever 26 is biased by a spring 28 so that the brake shoe 32 thereon is urged into contact with a brake shoe disc 30 on the motor shaft 6, when the lid is open. Closure of the lid moves the lever 14 to lift the lever 21 to tension the Bowden cable and so draw the lever 26 against the action of the spring 28 from the brake disc 30 and move lever arm 26b to close the switch 29. A set-screw 31 on the arm 36b enables the sequence of operation of the brake and switch to be set, and the Bowden cable passes through a tube 25 to protect it against moisture.
Patent GB-358263-A (GB)
Title: Improvements relating to drying or airing chambers
IPC: D06F58/12
Filed: 1930-09-26
Abstract: 358,263. Drying and airing clothes &c. CORTEEN, W. D., 46, Drayton Park, Highbury, London. Sept. 26, 1930, No. 28862. [Classes 34 (i) and 34 (ii).] Clothes &c. to be dried or aired are suspended in radial compartments 3 in a carrier rotated step by step on a vertical axis 5. A fan 10 at the top of the casing, driven by a motor 11, draws air upwardly through an axial chamber 2, containing a steam heater 6, the current then being deflected by a dome having branches 13 directing the air downwardly through all the compartments excepting the one opposite the loading and unloading doorway 14. Lips 16 may be formed on the air apertures 15 whereby the downward currents may be utilized to rotate the carrier, which is arrested by manually controlled stops. The garments are suspended by clips on hinged supports 17 which may be swung out through the doorway 14. The steam coil 6 may be cleaned by an automatically operating brush.
Patent GB-904167-A (GB)
Title: Improvements in or relating to electronic control apparatus
IPC: G05B11/01
Filed: 1958-09-09
Abstract: 904,167. Valve amplifying circuits and non- linear circuits. MINNEAPOLIS - HONEYWELL REGULATOR CO. Sept. 9, 1958 [Sept. 9, 1957], No. 28934/58. Class 40 (6). A direct current amplifying system comprises a resistance capacitance coupled (T.C.) amplifier and a chopper-modulated amplifier with their inputs and outputs connected in parallel. Input signals are supplied via a differentiating circuit and the output is further amplified by a directly coupled D.C. amplifier. Feedback is provided from the output of the D.C. amplifier via a capacitor. As shown, the input terminals 2 are passed via a differentiating circuit 8, 14, 20 to the T.C. amplifier comprising valves 28, 40 and to the chopper-modulated amplifier comprising valves 60, 76, 88. The output of valve 88 is demodulated by rectifiers 110, 112, fed with alternating voltage synchronized with the input chopper 56. The two outputs are added together at the grid of valve 128 which is directly coupled to valve 136 and thence to the emitter follower 146. Feedback is provided by the connection from the slider of the gain-controlling potentiometer 152 to the second grid of the difference amplifier 28 via a capacitor 156 which provides an overall integral function, the time constant of which is adjustable by resistors 20, 24. Transient response is improved by positive feedback from the output of the valve 76 (after demodulation by the synchronous vibrator 160) to the second stage 40 of the T.C. amplifier. The differentiating circuit may be disconnected by opening switch 10.
Patent GB-1502459-A (GB)
Title: Burner assembly for use in a fuel oil burner
IPC: F23D11/40
Filed: 1975-07-09
Abstract: 1502459 Oil burners OFR OFFICINE FRATELLI RIELLO SpA 9 July 1975 [30 Aug 1974] 28952/75 Heading F4T A fuel oil burner assembly comprises an air supply housing 2, an axially-movable fuel nozzle 5 in the housing, a flame stabilizer 9 in the housing downstream of the nozzle and connected to the nozzle, and a baffle 11 down stream of the flame stabilizer having a central aperture and a conical rim 9, an annular throttling passage 10, a vaned baffle 11, and a throttling ring 13. The flame stabilizer 9 is secured to nozzle conduit 6 by brackets 7, and is adapted to vary the air throttling passage 10. Stabilizer 8 may hae skewed slots therein, so as to provide for air-swirling and baffle 11 has inclined vanes 12 upset therefrom.
Patent GB-648023-A (GB)
Title: Improvements in and relating to meters for the measurement of radiation in the spectral region of tubular lamps
IPC: G01J1/16
Filed: 1948-11-08
Abstract: 648,023. Photo-electric photometer. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Nov. 8, 1948, No. 28967. [Class 40 (iii)] A meter for measuring the output of a lamp in a particular spectral region, e.g. ultra-violet light of wavelength 2537 Angstroms, comprises two photo-cells connected in opposition, both cells being equally responsive to the spectrum outside the selected region and one only being responsive to that region. As shown, the meter has the bottom of its housing 3 so formed as to sit astride the lamp, two photo-cells 9 and 10 being mounted in a recess in the housing and connected in series, with a microammeter 17 connected across their junction. Cell 9 is covered with a quartz plate transmitting ultra-violet and cell 10 with a glass plate which does not, both plates being backed with a suitable phosphor layer such as manganese activated zinc silicate which fluoresces under ultra-violet radiation. The effect of visible light is thus cancelled out while, since only the backing on the quartz plate fluoresces, the microammeter gives a direct indication of the ultra-violet content of the light. A resistor may be provided in shunt with the meter for calibration purposes.
Patent GB-1350033-A (GB)
Title: Fluid-actuated press
IPC: B27F7/15
Filed: 1972-06-21
Abstract: 1350033 Presses AUTOMATED BUILDING COMPONENTS Inc 21 June 1972 [20 Oct 1971] 29144/72 Headings B5F and B4C A press for embedding nail plates into joints of wooden members J comprises an upper platen 18 on a head 14, a lower platen 16 on a base 12, a cylinder 40 at each end of the head to move the head against the base and a bar 66 to transfer the force applied by a cylinder to the head at one end of the press to the other end if there is a tendency for the upper platen to come out of parallelism with the lower platen. Bell-cranks 50a, 50b pivotally mounted at each end of the base are each pivotally connected to a pair of arms 56 pivotally connected to the head. The bar comprising rigid steel tubing 66 interconnects the bell-cranks to ensure that they pivot in synchronism and thus maintain the ends of the head level. The head carries guide bars 38 movable in guides 32 in the base. The press is mounted on wheels 24, 26 movable along tracks with a jig table extending between the platen. Rollers 68 on the base are resiliently urged into engagement with the jig table.
Patent GB-1196044-A (GB)
Title: Electrophoretic Imaging Process.
IPC: G03G17/04
Filed: 1967-06-23
Abstract: 1,196,044. Photo-electro-phoretic imaging. XEROX CORP. June 23, 1967 [June 29, 1966], No.29215/67. Heading G2H. In a photo-electro-phoretic imaging process in which a suspension of electrically photo-sensitive particles in an insulating liquid is subjected to an electric field using a pair of electrodes and imagewise exposed through one of the electrodes whereby an image of migrated particles is formed on at least one electrode, either (a) at least one electrode is electrostatically charged before or during image formation, (b) the suspension is electrostatically charged before image formation, or (c) the image formed is charged and then transferred to a receptor. Electrostatic charging may be effected by a brush or corona discharge and the final images may be fixed by thermo-adhesive, a lacquer or a laminated sheet.
Patent GB-678941-A (GB)
Title: Improvements in or relating to hydrocarbon synthesis
IPC: B01J27/22
Filed: 1949-11-15
Abstract: Hydrocarbons and oxygenated derivatives are prepared by contacting a gas mixture containing H2 and CO in a ratio of less than 2 : 1, under synthesis conditions, with a fluidized iron catalyst prepared by subjecting fresh iron oxide to reduction with hydrogen at 900-1500 DEG  F., and subjecting the reduced product, before use in the synthesis, to an activating or precarbiding treatment with a mixture containing H2 and CO in a ratio of 2-8 : 1 at 500-700 DEG  F.  The final activating treatment may be continued until 50-55 per cent by weight of iron is converted to iron carbide.  The reduction with hydrogen at 900-1500 DEG  F. may be followed by a further reduction at 500-700 DEG  F.  Powdered iron oxide of particle size 0-200m  with 50 per cent or more particles greater than 80m  may be impregnated with alkali halide or carbonate and reduced at 1000-1100 DEG  F. till the oxygen content of the iron is 3-10 per cent by weight.  It is then activated at 500-700 DEG  F. for several hours.  Results of tests showing the increased resistance to oxidation and carbide retention, and reduction in carbon deposition and disintegration with catalyst prepared from pyrites ash containing sodium carbonate or potassium chloride, ammonia synthesis catalyst (fused magnetite), and mill scale are given.  Specification 620,775 is referred to.ALSO:Hydrocarbons and oxygenated derivatives are prepared by contacting a gas mixture containing H2 and CO in a ratio of less than 2 : 1, under synthesis conditions, with a fluidized iron catalyst prepared by subjecting fresh iron oxide to reduction with hydrogen at 900-1500 DEG F, and subjecting the reduced product, before use in the synthesis, to an activating or precarbiding treatment with a mixture containing H2 and CO in a ratio of 2-8 : 1 at 500-700 DEG F.  The final activating treatment may be continued until 50-55 per cent by weight of iron is converted to iron carbide.  The reduction with hydrogen at 900-1500 DEG F may be followed by a further reduction at 500-700 DEG F.  Powdered iron oxide of particle size 0-200m  with 50 per cent or more particles greater than 80m  may be impregnated with alkali halide or carbonate and reduced at 1000-1100 DEG F till the oxygen content of the iron is 3-10 per cent by weight.  It is then activated at 500-700 DEG F for several hours.  Results of tests showing the increased resistance to oxidation and carbide retention, and reduction in carbon deposition and disintegration with catalysts prepared from pyrites ash containing sodium carbonate or potassium chloride, ammonia synthesis catalyst (fused magnetite), and mill scale are given.  Specification 620,775 is referred to.
Patent GB-1172462-A (GB)
Title: An improved fastener
Inventor: JUNEMANN DIETRICH
IPC: F16B19/10
Filed: 1968-06-19
Abstract: 1,172,462. Stud and socket fasteners. A. RAYMOND. 19 June, 1968 [25 July, 1967], No. 29249/68. Heading E2B. [Also in Division F2] A fastener comprising a head 11, a tubular shank 12, a bore 13 through the head 11 which is co-axial with the shank and a pin 14 which is drivable through the bore 13 into the shank 12 to expand the shank outwardly is provided with at least two, spaced annular protuberances 16, 17 on the inner surface of the tubular shank. The pin 14 which may be provided with a recess 15 in one end may, before being driven into the shank 12, be a force fit within the bore 13 or connected to the head 11 by an easily frangible web. The fastener may be of synthetic plastics material such as acrylic resin.
Patent GB-607304-A (GB)
Title: Improvements in or relating to hydraulic jacks
IPC: B66F3/25
Filed: 1945-11-05
Abstract: 607,304. Hydraulic jacks. NEWTON, N. B. Nov. 5, 1945, No. 29273. [Class 78 (iii)] A hydraulic jack, especially one depending from a motor-vehicle, has valve means which automatically close the fluid inlet when the ram is fully retracted so as to inhibit leakage past the ram packing or draining into the hydraulic system. In Fig. 2, a rod 11 secured to the ram head has a valve head 19a which closes on to the fluid inlet 14 in the cylinder head when the ram is retracted. To provide for initial ease of re-entry of fluid the valve head may, as shown, have a byepass passage. controlled by a spring-loaded ball 19. In the alternative form of Fig. 3, where the limit of the return stroke is determined by a bottom seal for the ram head, or by an internal stop, fluid is expelled past a spring-loaded valve 21, which closes automatically when the ram has retracted fully. An oppositely-acting inlet valve 20 is arranged concentrically with the valve 21. The invention is distinguished from that of Specification 603,411 in that the fluid is not maintained under pressure by the return springs 16, 17 when the ram is retracted. Leakage past the ram packing is inhibited by atmospheric pressure owing to the cylinder being sealed-off from the hydraulic system.
Patent GB-1505520-A (GB)
Title: Printer carriage drive arrangements
IPC: B41J19/18
Filed: 1975-07-14
Abstract: 1505520 Selective printing SIEMENS AG 14 July 1975 [20 Sept 1974] 29398/75 Heading B6F A print carriage 7 is driven along a print line and returned to the start of the line by a reversible stepping motor 1, the motor 1 being supplied with drive pulses which are interrupted by logic circuitry when the carriage is returned to the line start position, at which a signal generator 8 is activated. Further signal generators 9, 10 are provided, the generator 9 indicating the end of the line, and the generator 10 acting to cause deceleration of the print carriage 7. The carriage 7 is driven through a belt 5 having teeth on a portion of its inner surface to mesh with teeth on a gear 4 driven by the motor 1, but being smooth over a further portion which passes over an idler pulley 6.
Patent GB-192497-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L5/10
Filed: 1921-11-04
Abstract: 192,497. Guthrie, W., and Wallace (Glasgow), Ltd. Nov. 4, 1921. Valves; valve-gear.-In an engine employing a single coaxal sleeve valve operated with a combined reciprocatory and angular motion, the halfspeed valve shaft 54 is extended through the crank-case cover 19 and fitted with a driving- pulley 57 which may be used as a substitute for the pulley 83 on the crank-shaft when a slow speed is required. The sleeve valve 50 is driven by the spherical member 61 on the half-speed shaft which engages in the lug 63 on the valve. A transverse shaft 66, on which are the governor and magneto, is also driven by the half-speed shaft.