baber/WOPTO huggingface dataset:
Patent GB-418496-A (GB)
Title: Improvements in or relating to braking or retarding apparatus
IPC: B60T13/74
Filed: 1933-04-20
Abstract: 418,496. Brakes. LEITNER, H., 2, Victoria Street, London. April 20, 1933, Nos. 11875/34 and 11876/34. Divided out of 418,443. [Class 103 (i).] An eddy-current brake in which eddy currents are generated in a hollow cylindrical armature arranged between inner and outer poles of a homopolar electromagnet is used as a servo-device to effect the application of a mechanical or other brake. The brakes may also be directly applied by the operating pedal &c. The electromagnetic clutch and brake device may be of any of the various forms described in Specification 418,443 for example, that shown in Fig. 7 which comprises a hollow cylindrical armature 1 rotatable between circumferentially spaced polepieces 3, 4 of a field member 2 having windings 5, 6. The armature 1 may be secured to the cardan shaft of a motor vehicle or other shaft to be braked and the field member is rotatably mounted upon the shaft and has secured to it a drum 7 for a cable 8, Fig. 1, connected to one arm of lever 11 the other arm of which is connected by a slotted link 12 to an arm 15 on a shaft 15<1> coupled to the brakes by link 16. The pedal 18 is also connected with lost motion to the brakes by the linkage 19, 21 and arm 23 on the shaft 151. The field member 2 is normally locked against rotation by a detent 24 controlled by an arm 25 and cable 29 the arm being freely mounted on the shaft 27 of the pedal 18 which may have the following consecutive positions :-(1), the coil 5 is energized and the device 1, 2 acts alone as a brake, eddy currents being induced in the armature ; (2), the coil 5 is de-energized, coil 6 is energized with a weaker current and the detent 24 is disengaged so that the field member 2 rotates to a limited extent and applies the additional brakes through cable 8 ; (3), both coils 5, 6 are energized ; (4) the additional brakes are further applied by the pedal through the linkage 19, 21. In alternative arrangements the field member 2 is shown connected to the transverse shaft of a front and rear brake system and to the master piston of a hydraulic brake system. Eddy current brakes may also be arranged to apply a wheel brake directly by mounting the armature to rotate with the wheel and the field member on the axle casing the field member being formed with a cam to apply internal shoes to a drum on the wheel. Graduation of the braking action may be effected by varying the current strength in the coils or the number of coils energized or their connection in series or parallel or by sliding an iron sleeve over the polepieces.
Patent GB-1077364-A (GB)
Title: Printing system
IPC: G06K15/06
Filed: 1965-03-19
Abstract: 1,077,364. Typewriters &c. NAVIGATION COMPUTER CORPORATION. March 19, 1965 [April 2, 1964; Aug. 11, 1964], No. 11888/65. Heading B6F. [Also in Division G4] A printer having a continuously rotating type - wheel has a solenoid - operated print hammer actuated by means rotating in synchronism with the wheel (see Division G4). The hammer assembly comprises an armature 91 which, when the solenoid is pulsed, strikes a hammer pin 94. The pin 94 moves leftwards and presses the paper tape 96 and carbon 95 against the typewbeel. A rubber bumper 93 and spring 97 return the hammer pin rapidly to its rest position.
Patent GB-822523-A (GB)
Title: Improvements in or relating to pouffes or like articles of furniture
IPC: A47C3/16
Filed: 1957-04-11
Abstract: 822,523. Seats. BROWN, E. April 10, 1958 [April 11, 1957], No. 11942/57. Class 52(2) A pouffe or like seat has an inner rigid hollow former 6 of plywood or like material surrounded by stuffing 2, 7 enclosed by a casing 1. The base may also be padded if the article is to be reversible.
Patent GB-128642-A (GB)
Title: Improvements in and connected with Carburettors of Internal Combustion Engines.
IPC: F02M21/00
Filed: 1917-08-21
Abstract: 128,642. Royce, F. H., and Rolls-Royce, Ltd. Aug. 21, 1917. Spray carburettors. - In engines particularly for use on aircraft, the pressure of the air supplied to the carburettor, whether above or below that at ground level, is maintained constant irrespective of the altitude by an aneroid device in conjunction with the pressure of the engine lubricating oil. Between the carburettor a and the air intake thereof is interposed a chamber b to which air may be admitted through a spring-loaded automatic valve c with dash-pot c<3>, and a valve d actuated through linkages d<1>, d<2>, d<3> by a piston e<1> subjected on its lower face to the pressure of the engine-lubricating oil. The motion of the valve d is damped by a dash-pot l through linkages l<1>, l<2>, l<3>. The lubricating-oil is admitted to, and exhausted from, the chamber c through ports e<2>, e<3> respectively, controlled by a valve e<4> which is actuated by a solenoid g. When a fall in pressure in the chamber b below the predetermined pressure occurs, an aneroid box h expands and closes the contacts k, k<2>. Current from a battery j is sent through the solenoid to lift the valve e<4> and open the port e<2> when the piston e<1> is raised and the valve d opened. The piston is returned by a spring m. At starting, air is drawn through the valve c. Air under pressure greater than normal atmospheric may be supplied to the valva d. The fuel tanks and supply pump and the top of the float chamber a<2> may be connected to the chamber b.
Patent GB-833206-A (GB)
Title: Improvements relating to cathode ray display tube circuits
Inventor: TAYLOR ERIC WILFRED
IPC: H04N7/01
Filed: 1955-04-27
Abstract: 833,206. Television. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 19, 1956 [April 27, 1955], No. 12104/55. Class 40 (3). [Also in Group XL (c)] A linear relationship between the input signal and the brightness of light spot on the fluorescent screen of a cathode-ray tube is produced by means of a negative feed-back arrangement in which a photo-electrically sensitive device is disposed to observe the tube screen and apply back a signal in opposition to the input signal, the feed-back path including means for reducing the amplitude of low-frequency components relative to high-frequency components to reduce the effect of lag in the screen. The invention is stated to be of application in colour monitors, cinema television equipment and standards converters generally, but is described in detail only as applied to a colour standards converter for field-sequential to simultaneous signals where it is necessary to maintain identical relationships in the three (red, green and blue) converter channels to prevent colour distortion. Fig. 1 shows in detail only one, the red, channel of the converter, the sequential signals at 150 fields per second from camera 1 being applied via gate 6 and amplifier 8 to cathode-ray tube 12 and the resulting image on the fluorescent screen 13 being viewed by a storage-type pick-up tube 21 operating at 50 fields per second. In accordance with the invention a partiallysilvered mirror 29 is included in the light path between tubes 12 and 21 and reflects light to a photo-electric cell 32 which generates a signal proportional to the instantaneous brightness of the spot on fluorescent screen 13 and applies it back to the input of amplifier 8 in opposition to the signal from gate 6. Network 35 is an adjustable bass-loss circuit to compensate for the effect of lag in the phospar forming screen 13. Lens 30 is preferably identical with lens 23. In a modified arrangement, Fig. 2 (not shown), the pick-up tube is of the type incorporating an image-section and the negative feed-back signal is derived from the current flowing in a resistor connected to the photocathode. Reference has been directed by the Comptroller to Specification 736,899.
Patent GB-1061832-A (GB)
Title: Automatic winding machine
IPC: B65H67/08
Filed: 1964-03-23
Abstract: 1,061,832. Automatic winding machines. W. REINERS. March 23, 1964 [March 30, 1963], No. 12184/64. Heading D1J. An automatic winding machine having a nozzle 99 for sucking off the tip winding from each fully wound package 5' presented to it includes an additional suction opening 98 into which there can be manually placed the thread end of any package 5" that is only partially wound. As illustrated the suction opening 98 is closed by a shutter 101 that is temporarily raised by cam means 111 after each indexing movement of a package supply magazine 20 to bring the packages in turn to a position below the nozzle 99. This intermittent opening enables the thread end from the partially wound supply package 5" to travel around the rim of the opening 98 with each indexing movement of the magazine 20 and assume a favourable position whereby the thread end will be in a position to be picked up by a seeker arm 11 when the partially wound supply package 5" is eventually released by a flap 205 and deposited on a spindle 5b.
Patent GB-1060359-A (GB)
Title: Improvements in or relating to heat curable compositions
IPC: C08K5/375
Filed: 1964-11-16
Abstract: A heat curable composition comprises (1) polyethylene, (2) an organic peroxide in an amount sufficient to promote cross-linking of said polyethylene on heating, and (3) an organic cross-linking regulator which is a phenolic compound of the formula <FORM:1060359/C3/1> wherein R2 is hydrogen, hydroxyl or an <FORM:1060359/C3/2> group; R3 is hydrogen or a <FORM:1060359/C3/3> group; at least one of R2 and R3 is hydrogen; y is an integer from 1 to 3; and R4 is alkyl having 1 to 5 carbon atoms.  The composition may also contain carbon black and 2,6-di-tert.-butyl-para-cresol.
Patent GB-1074612-A (GB)
Title: Improvements in arc welding electrodes
Inventor: WILLEY JOHN MATTHEW
IPC: B23K35/04
Filed: 1965-03-23
Abstract: The Specification refers to examples of weld deposits consisting of steels having alloying elements within the following ranges:-  16.1 - 19.5% Cr 8.5 - 10.4% Ni 0.7 - 1.2% Mn 0.2 - 0.4% Si 0 - 0.9% Nb 0 - 3.6% Mo.
Patent GB-1475731-A (GB)
Title: Method of producing reduction gas
IPC: C01B3/34
Filed: 1974-03-20
Abstract: 1475731 Shaft furnaces SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 20 March 1974 [26 March 1973] 12376/74 Heading F4B [Also in Divisions C5 and C7] Reduction gas, for use in metallurgical processes or as a protective gas or a recarburization gas and consisting substantially of CO and H 2  together with 0-5% by volume CO 2  + H 2 O, is produced from a recirculation gas containing CO, CO 2 , H 2  and H 2 O by an endothermic reaction with carbon and/or hydrocarbon and the energy necessary to effect the endothermic reaction is supplied by passing at least part of the recirculation gas through a plasma burner. If the reduction is carried out with carbon either pulverized cool is mixed with the gas prior to passage through the plasma burner or the gas is passed through a bed of coke after passage through the plasma burner. Fig. 3 illustrates a modified Wiberg-S÷derfors furnace in which recirculation gas 24, from the shaft 19 in which iron ore is reduced, is mixed with propylene from inlet 25 and passed, in part through the electric field of the plasma burner 26 and in part through the conduit 28, into the mixing chamber 27 which can contain a catalyst end in which reduction of CO 2  and H 2 O to CO and H 2  by reaction with the propylene occurs. The shaft 19 has a preheating burner 20 and a supply line 22 for iron oxide.
Patent GB-608225-A (GB)
Title: Improvements in optical projection systems
IPC: G02B1/11
Filed: 1945-05-17
Abstract: 608,225. Optical-projection systems. KERSHAW & SONS, Ltd., A., KERSHAW, N., and BURNETT, D. F. May 17, 1945, No. 12381. Drawings to Specification. [Class 97 (i)] An optical-projection system comprises one or more optical elements, each coated with a film of an optical thickness of one-quarter, or an uneven multiple of one-quarter, of the wavelength of blue light, i.e. light of wavelength lying between the F and G Frauenhofer lines and a refractive index substantially equal to the square root of the refractive index of the material of the optical element. The coating serves to give a whiter screen than is usual when a beam from an artificial light source is projected through the system and on to the screen. Spectral transmission curves are given for two known coatings and for a coating according to the invention of thickness giving minimum reflection of 4500 A. Specifications 538,272 and 538,273 are referred to.
Patent GB-1141986-A (GB)
Title: Rotating seal shaft assembly
IPC: F16J15/34
Filed: 1966-03-21
Abstract: 1,141,986. Coating with porous glass. RITTER PFAUDLER CORP. 21 March, 1966 [22 March, 1966], No. 12398/66. Heading C1M. [Also in Division F2] In a rotating seal shaft assembly, a rotating seal member 16 surrounds a shaft 4, which has an impeller, not shown, in a vessel 2, and has a sealing means 20 between the shaft 4 and its inner surface, the seal member 16 being spring pressed by spring 18 into sliding fluid tight contact with a stationary seal seat 14, one of the seal members, 14, having a coating of porous glass which has been ground on its surface to expose a portion of the voids therein and the other of the seal members, 16, being of softer material, preferably graphite, than the glass so that the material wears off in particles which deposit in the voids in sliding over the glass, thereby lubricating and increasing the life of the seal assembly. The porous glass coating preferably has an underlayer of impervious glass. The glass used is a glass ceramic of the following composition in weight percentages: SiO2 57À3; TiO 2  8À8; Al 2 O 3  9À7; Na 2 O 6À9; Li 2 O 9À4; SrO 2À8; Fe 2 O 3  5À1, which is fritted and milled with materials and water (two examples given) to make the glass ceramic porous. The slip is sprayed on to mild steel, fired and heat treated before grinding.
Patent GB-873224-A (GB)
Title: Improvements in or relating to a process for curing epoxy resins
IPC: C08L63/00
Filed: 1959-04-13
Abstract: An epoxy resin containing more than one epoxy group per molecule is cured with a curing agent comprising a polyamine derivative of a long chain fatty acid, an adduct of an amine and an epoxidized oil or alkene or a condensation product of a lower aliphatic polyamine and a dimerized or trimerized drying oil fatty acid, in the presence of a compound containing at least one hydroxyl group attached to a substituted or unsubstituted benzene nucleus, said curing agent having a molecular weight of at least 300, containing primary and/or secondary amino groups and at least three hydrogen atoms per molecule bound to amino nitrogen atoms. Specified epoxy resins are those derived from bis-phenol or glycerol.  The compositions may also contain liquid reactive diluents containing one or more epoxy groups per molecule, e.g. 1, 2-butene oxide, diglycidyl ether and glycidyl ethers of monohydric alcohols or phenols, e.g. n-butyl glycidyl ether or certain specified aliphatic polyamines.  Plasticizers, e.g. octyl phthalate and solvents e.g. xylene may be present in the compositions.  Examples (1) to (6) describe the curing of an epoxy resin made from 2, 21-bis (4-hydroxyphenol) propane and epichlorohydrin with an amino polyamide or a polyamino derivative of a long chained ester in the presence of phenol, phenyl glycidyl ether also being present in the reaction mixture of Example 1.  In Examples (7) and (8) a polyglycidyl ether of bis-phenol, an amino polyamide, diethylene triamine, phenol, dioctyl phthalate and n-butyl glycidyl ether are mixed, the mixture being applied to a joint in a polyvinyl chloride coated electric cable and cured to form a sleeve.  In Example (9) a polyglycidyl ether of bis-phenol is cured by reaction with a fatty acid polyamine adduct in the presence of phenol or p-cresol.
Patent GB-546871-A (GB)
Title: Improved method of and apparatus for casting metal
IPC: B22D17/00
Filed: 1941-09-25
Abstract: 546,871. Casting-machines. PAYNE, P. M. Sept. 25, 1941, No. 12452. Convention date, Sept. 30, 1940. [Class 83 (i)] In casting grinding balls or other metal articles, a gang of gated chill, sand, or other moulds 27, Fig. 4, is moved in an upwardly inclined path while molten metal is fed at 58 to flow by gravity along a downwardly inclined path just above the moulds for successive filling of progressively lower moulds. Water-jacketed mould halves 27, 29, Fig. 2, may be carried by a wheel 23 rotating about an axle 11 slightly inclined to the vertical, the halves 27 being fixed and the halves 29 mounted on arms 31 pivoted at 30 and provided with arms 33 having adjustable weights 34, to close the moulds, and rollers 35, adapted to engage a fixed cam rail 36, open the moulds, and discharge the castings. The moulds are continuously supported with segments of a pouring trough 59 which is destroyed when the moulds open.
Patent GB-234982-A (GB)
Title: Improvement connected with medical and like vaporizers
IPC: A61M15/00
Filed: 1924-05-21
Abstract: 234,982. Porter, A. F. May 21, 1924. Vaporizing by heat or combustion.-A medical or like, vaporizer consisting of a perforated casing E, Fig. 6, carrying a bowl G holding the substance to be vaporized, has a spring holder A,. Figs. 1 and 3, adapted to grip the edges of an opening F in the casing E and the inner wall of the casing and adjustably support the candle, night-light or lamp, which heats bowl G, or the. holder C therefor. The spring means A has its ends B apart and curled and may be formed of a flat spring having projections D<1>, Fig. 3, or corrugations D, Fig. 1, for gripping the beating means, or of a corrugated or wavy wire. Holder C may have a perforated flange around its top. The bowl G may be fed by drip feed from a container H.
Patent GB-1468020-A (GB)
Title: Apparatus for opening bags
IPC: B65B69/00
Filed: 1974-06-12
Abstract: 1468020 Opening bags BEL-TYNE CO Ltd 12 June 1974 [15 March 1973] 12486/73 Heading B8C Apparatus for opening bags comprises a pair of rollers 4, 5 which feed the bags to a cutter 9 and which strip the bag parts severed from one another by the cutter away from the contents. The contents fall into a shoot 8. The rollers may be suction rollers or spiked rollers. The spiked rollers may be fabricated for easy spike replacement or the spikes may be mounted in rows on pivoted frames which are moved inwardly of the roller surface by cams to strip the empty bag parts from the spikes. Alternatively combs 29 may be used for stripping. The bag parts may be shredded or collected in bins (Figs. 9, and 16 and 17 respectively, not shown). The rollers are mounted on pivoted arms 6, 7 which may also be vibrated. The bags are fed to the rollers 4, 5 by a conveyer 1 or by a pivoted platform (80, Figs. 17 and 18, not shown). The cutter may comprise a reciprocated saw blade of adjustable height, a band saw, or a rotating wheel. The apparatus may include a dust extraction system.
Patent GB-393068-A (GB)
Title: Improvements relating to separators for use in electric accumulators
IPC: H01M50/40
Filed: 1932-04-30
Abstract: 393,068. Accumulators. CHLORIDE ELECTRICAL STORAGE CO., Ltd. and HEAP, B., Clifton Junction, near Manchester. April 30, 1932, No. 12508. [Class 53.]. Electrodes consist of active material sur. rounding spine-like members and enclosed in porous ebonite tubes which are perforated to assist the escape of gas formed within the tubes. The tubes may be provided with ribs which may be made of or faced with ebonite. Fig. 1 shows a part of an electrode comprising top and bottom bars connected by rods or spines 4, Fig. 2, surrounded by active material and enclosed in porous ebonite tubes 5 which are provided with perforations 7 for the escape of gas. As shown in plan in Fig. 3 the tubes may be provided with ribs 8.
Patent GB-219759-A (GB)
Title: Improvements in or relating to the construction of iron or steel reinforcement for concrete floor slabs and the like
IPC: E04C5/06
Filed: 1923-05-10
Abstract: 219,759. Ferneyhough, J. May 10, 1923. Reinforced concrete.-A reinforcement of the type comprising upper and lower planes of longitudinal and transverse rods has two series a, b of continuous undulatory ties positioned diagonally relatively to the rods and provided at the upper and lower apices with loops or eyes through which the rods are threaded. The rods and crossing points o are shown displaced, but actually one series is directly vertically over the other. The points o may be secured and interconnected ; some rods may consist of a group of bars where extra strength is required, or certain rods may be omitted when the framework is to be stronger in one direction than in the other. The invention is applicable to floors, roads, walls, roofs, platforms, rafts, &c.
Patent GB-1460856-A (GB)
Title: Process and apparatus for gas filling and closing a gas-tight  envelope for an electric lamp arc welding torch weaving method
IPC: H01J9/38
Filed: 1974-03-21
Abstract: 1460856 Discharge lamps ITT INDUSTRIES Inc 21 March 1974 [29 March 1973] 12538/74 Heading H1D [Also in Division B3] In a method and apparatus for filling a gasdischarge tube envelope 1, which is made of alumina and welded to metal end tubes 2, 2<SP>1</SP> with narrow openings 3, 3<SP>1</SP>, is enclosed in an enclosure 5 having an outlet 7 and an inlet 6. Solid substances 4 required for the discharge, e.g. mercury or sodium, are initially placed in envelope 1. With inlet 6 closed, air is pumped out by way of outlet 7, which is then closed, and inlet 6 is opened to admit gas, e.g. argon or Xenon, to the enclosure 5 and envelope 1. Two electrodes 10, 10<SP>1</SP> aligned with the tubes 2, 2<SP>1</SP> and the axis of envelope 1 are mounted in the walls of enclosure 5. Arcs are struck between the electrodes and the respective tubes 2, 2<SP>1</SP> alternately as controlled by a change-over switch 15, for times determined by a timeswitch 12, to seal the metal tubes. Pieces of metal 9, 91 may be placed in tubes 2, 2<SP>1</SP>, and the tubes may be of niobium and the pieces of metal of zirconium, the metals forming a sealing alloy. In a modification (Fig. 3, not shown), only one end of the envelope 1 is contained in an enclosure (51).
Patent GB-1423575-A (GB)
Title: Tyre for use in cycles
IPC: B60C11/04
Filed: 1973-03-16
Abstract: 1423575 Tyres for cycles BRIDGESTONE CYCLE KOGYO KK 16 March 1973 [16 Nov 1972] 12669/73 Heading B7C A tyre 1 for use in a cycle comprises a casing having a pair of sidewalls and a tread portion forming a space therebetween which is substantially part-circular in radial cross-section, the tyre having a radially-outer tread 2 having an outer surface rectilinear in radial cross-section, and oblique shoulder treads 3 on both sides of the tread 2. A mid-circumferential groove 4 is provided in the tread 2. The width b of the tread 2 is preferably approximately one third of the diameter D of the substantially partcircular portion of the tyre casing. The length l, considered in radial section, of each shoulder tread 3 is preferably approximately one half of the diameter D. The shoulder treads 3 are preferably inclined to one another at an angle of approximately 80 degrees.
Patent GB-1518658-A (GB)
Title: Method and apparatus for microcoulometric determination of enzyme activity
IPC: G01N27/42
Filed: 1977-03-25
Abstract: 1518658 Enzyme activity determination TECHNICON INSTRUMENTS CORP 25 March 1977 [28 July 1976] 12750/77 Heading GIN The activity of an enzyme is determined by mixing it with a co-enzyme and a substrate for a reaction involving a change of the co-enzyme from a first to a second form and then biasing the auxiliary electrode of a three electrode potentiostat contacting the mixture so that the co-enzyme is charged by the bias alternately between its first and second forms and measuring at least one of the forms during the biasing. Preferably the bias voltage alternates positive +0À7V and negative - 1À2V for about 1 ms duration and the resulting current at the measuring electrode is determined. Changes in the amounts of the two co-enzyme forms with time give a determination of the amount of enzyme (or alternatively of substrate) present.