baber/WOPTO huggingface dataset:
Patent GB-674723-A (GB)
Title: Improvements relating to processes of manufacturing engineering parts from heat resisting alloys
Inventor: GRESHAM HAROLD ERNEST
IPC: C22F1/10
Filed: 1949-02-17
Abstract: Alloys consisting of at least 50 per cent of nickel or nickel plus cobalt (the cobalt not more than 40 per cent of the alloy) chromium from 5-45 per cent and one or more of carbon, silicon, titanium, molybdenum, tungsten, iron, manganese, aluminium, vanadium and niobium, the carbon being not greater than 1 per cent, titanium and silicon not greater than 5 per cent each with the remainder each not more than 25 per cent nor 40 per cent in total, with or without nitrogen, magnesium, copper, calcium and rare earth metals not greater than 1 per cent each nor 3 per cent in total are subjected to a heat treatment comprising:-(a) carrying out a major portion of a hot working operation; (b) solution treating for 5-10 hours at 1050-1200 DEG C.; (c) completing hot working operation; (d) refining treatment of 5 minutes to 1 hour at 850-1050 DEG C.; (e) precipitation hardening for 10-20 hours at 700-800 DEG C.  Treatment (a) may comprise 75-95 per cent of the hot working.  The method is stated to be particularly applicable to the heat treatment of gas turbine blades, the final machining being carried out before or after precipitation hardening. Specifications 666,399 and 674,724 are referred to.
Patent GB-1184783-A (GB)
Title: Lens System
Inventor: WYNNE CHARLES GORRIE
IPC: G02B13/00
Filed: 1966-02-01
Abstract: 1,184,783. Optical objectives. NATIONAL RESEARCH DEVELOPMENT CORP. May 1, 1967 [Feb.1, 1966], No.4461/66. Heading G2J. A lens system of fixed focal length has a convergent component 1, Fig.1, a meniscus 2 convex to the front, a bi-concave component 3, a meniscus 4 concave to the front and a convergent component 5, the axial thickness of one of the meniscus components being greater than that of the other meniscus by a factor of at least 1À7. Optical data are given for the embodiment shown in which the bi-concave component 3 is a singlet and meniscus 4 a doublet, and also for another embodiment in which the bi-concave component is a doublet and the second meniscus a singlet.
Patent GB-922890-A (GB)
Title: Improvements in or relating to magnetically variable electrical resistor devices
IPC: G05B1/02
Filed: 1960-02-09
Abstract: 922,890. Circuits employing multistable magnetic elements. PHILIPS ELECTRICAL INDUSTRIES. Feb. 9, 1960 [Feb. 12, 1959], No. 4549/60. Class 40 (9). [Also in Groups XIX and XL (c)] The resistance of a magneto - resistive element is adjusted by subjecting it to the field of a permanent magnet and adjusting the flux by passing current pulses through a winding on the magnet. Fig. 2 shows a magneto-resistive element 1 in the form of a film of bismuth, indium arsenide or indium antimonide on an insulating filament located between the poles of a permanent magnet 3. One microsecond pulses derived from a gasfilled or vacuum valve or transistor circuit are fed to winding 4. Each pulse increases successively the flux of the magnet and thus increases the resistance of the element 1, the increase being maintained after each pulse ends until the flux is reduced by the use of pulses of opposite polarity or by pulsing a transverse demagnetizing winding 7. The pulses may alternatively be formed by discharging a capacitor via a manually or automatically controlled switch. The generation of pulses may be automatically stopped when the resistance reaches a predetermined value. Decimal counting.-A plurality of such devices may be combined to form a decimal counting chain. When ten pulses have been received by the first device, a given variation in the resistance of element 1 occurs, which controls resetting of the flux to a value corresponding to zero pulses.
Patent GB-690933-A (GB)
Title: A pattern holder
Inventor: MCGLOIN FRANCIS JOSEPH
IPC: D04B3/00
Filed: 1950-02-22
Abstract: 690,933. Book protectors. CITY & EASTERN AGENCY, Ltd. July 12, 1950. [Feb. 22, 1950; March 6, 1950] Nos. 4594/50 and 5611/50. Class 16. [Also in Groups VIII and XVII] A holder for knitting patterns or like matter comprises two sheets a, b of transparent or semi-transparent material secured together along two opposite edges. One of the sheets has a matt outer surface to enable a pencil mark to be made to indicate a point on the pattern, and a series of holes e is punched through the sheets along one edge to provide a knitting needle gauge. A linear scale d is marked along one or more edges, and an inch square may be cut in one of the sheets to enable the tension of the knitted article to be checked.
Patent GB-549822-A (GB)
Title: Improvements in or relating to knitted structures
IPC: D04B1/16
Filed: 1941-04-07
Abstract: 549,822. Polyamides. DU PONT DE NEMOURS & CO., E. I. April 7, 1941, No. 4600. Convention date, April 6, 1940. Drawings to Specification. [Class 2 (iii)] [Also in Group VIII] Sheer hosiery &c. is knitted wholly or partly from synthetic linear polyamide monofils preferably drawn from 150-500 per cent. The monofils have a denier of between 5 and 30, a tenacity of at least 2 grams per denier, a modulus of elasticity not exceeding 0,6 and a Tenacity/Modulus of Elasticity factor of at least 6. Material obtainable from polyhexamethylene adipamide, polydecamethylene sebacamide and other filament forming material such as amino-caproic acid polymer can be used according to the invention. Several monofils may be knitted together, in parallel, without twisting. Specifications 461,236, 461,237, 524,953 and 545,940 are referred to. The Specification as open to inspection under Sect. 91 comprises also monofils prepared from synthetic linear polyesters, polyethers, polyacetals and vinyl polymers, interpolymers of vinyl chloride and vinyl acetate and inter polymers of unsymmetrical dichlorethylene, e.g. with vinyl esters, acrylic and methacrylic acid esters and styrene. This subject-matter does not appear in the Specification as accepted.
Patent GB-823853-A (GB)
Title: Improvements in crystal filters
IPC: H03H9/54
Filed: 1956-02-14
Abstract: 823,853. Crystal filters. GENERAL ELECTRIC CO. Feb. 14, 1956 [Feb. 14, 1955], No. 4606/56. Class 40 (8). A crystal filter comprises a crystal 16 cut to be resonant at a frequency to one side of the signal frequency, a reactance of the right sign being added to tune the circuit to resonance at the signal frequency. As shown, the crystal is resonant at a frequency below the signal frequency and the filter as a whole is tuned to the signal by the addition of a terminating capacitance 26 of suitable value. A low impedance is presented to the crystal whilst a high impedance is presented to the output circuit which may be the grid-cathode circuit of a valve. The input circuit may comprise a transformer 8 having its primary and secondary tuned to the signal frequency. A capacitor 24 is provided for neutralizing the capacitance of the crystal holder. In a modification (Fig. 2, not shown), the crystal is cut to be resonant above the signal frequency and the filter is terminated in an inductor of suitable value. The circuit may be used for producing a continuous reference signal from an input consisting of a series of bursts of several cycles of the desired reference frequency. Such a signal may be analysed into a continuous wave of the reference frequency plus sidebands. In order that the sidebands may be suppressed the spurious resonances of the crystal must occur in a frequency region remote from the reference frequency where the sideband energies are small. This result may be achieved by bevelling the edges of the crystal. The Specification contains some quantitative information on sideband suppression and the dimensions of a suitable circular crystal plate are given.
Patent GB-490299-A (GB)
Title: A screen or grating for use in radiography
IPC: G03B42/02
Filed: 1937-02-16
Abstract: 490,299. Radiographic apparatus. POLLITZER, G. Feb. 16, 1937, No. 4620. [Classes 98 (i) and 98 (ii)] A screen for use in producing composite radiographs, e.g. of the lungs during inhalation and exhalation, has a series of parallel rayimpermeable elements separated by spaces of width equal to or a sub-multiple of the width of the elements, and is adjustably mounted so that after making one exposure through the screen, this may be displaced through the width of a space and a second exposure made, and so on. The screen shown comprises parallel bars 3 secured in a frame 1, 2, which is slidably mounted in a frame 9, 10, 11. Springs 7 between the frames depress the screen frame, which carries at its base a stop 6 resting on a stepped slide 16 which may be displaced by a cord 22 against the action of a spring 21 to cause the stop 6 to rest on one step after another in position for the successive exposures. Clips 12 are provided for suspending the frame from a support.
Patent GB-803397-A (GB)
Title: Improvements in or relating to the production of casting-moulds and casting-cores
Inventor: DERLON HANS
IPC: B22C1/24
Filed: 1956-02-14
Abstract: Foundry moulds and cores are made from sand mixed with a binder comprising one or more drying oils, e.g. linseed oil, one or more oil soluble glycerol or pentaerythritol pthalate or maleate resins, and a proportion of at least one siccative.  In an example, 50 parts linseed oil, 45 parts glycerol maleate resin and 5 parts siccative solution are boiled down to stand oil which is used as binder in the following composition: 80 parts quartz sand, 20 parts clay-bonded sand and 2 parts binder.
Patent GB-608018-A (GB)
Title: Improvements in or relating to beverage dispensing apparatus
IPC: B67D1/00
Filed: 1946-02-14
Abstract: 608,018. Liquid-dispensing pumps. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 14, 1946, No. 4638. Convention date, Feb. 10, 1945. [Class 102 (i)] [Also in Group XVIII] A pump for delivering flavouring syrups in an automatic carbonated - drink dispensing machine is operated by the carbon dioxide under pressure supplying the water carbonator. The carbon dioxide is applied to the exterior of the upper of a pair of liquid-filled rubber cells 55, 56 which communicate with one another through a metering passage 60. The lower cell 56 consequently expands and, through a plunger 62, collapses a cell 65 containing a charge of syrup to discharge the syrup through an outlet 26. Delivery is for a fixed time period at the end of which the carbon dioxide is cut-off, the cell 65 expands under the action of a return spring 66 and takes in a fresh charge from a surrounding reservoir 23. An electrically-operated valve controlling the carbon dioxide works conjointly with a solenoid 37 operating a two-way valve 35 controlling filling and discharging of the cell 65.
Patent GB-683667-A (GB)
Title: A method of and apparatus for atomising liquids
IPC: F02M69/00
Filed: 1951-02-26
Abstract: 683,667. Spray-producers. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Feb. 26, 1951 [Feb. 28, 1950], No. 4648/51. Class 69 (iii). Liquid is atomised by feeding it from a conduit 2, Fig. 1, to or near the centre of a disc 1 from which it flows as a continuous film, and then engaging the film in a zone spaced from the disc periphery by atomising air streams 5. Alternatively, Fig. 2, liquid from a conduit 2 strikes a disc 6 and is atomised at a zone 4 by air streams 5. In both cases baffles 3 protect the film at the disc periphery from the air streams. The apparatus may be carried on an aircraft, in which case the atomising air is provided by the aircraft slip stream.
Patent GB-457365-A (GB)
Title: Improvements in and relating to variable speed transmission devices
IPC: F16H33/08
Filed: 1936-02-15
Abstract: 457,365. Variable speed gearing. SUYS, F., 16, Avenue Fernand Lehman, Meysse, Belgium. Feb. 15, 1936, No. 4667. [Class 80 (ii)] A variable-speed transmission device operating automatically by inertia comprises preferably a number of units in multiple phase each having a driving member E having the same centre O as a driven shaft K to which an eccentric P with centre O<1> is secured. Loose upon the eccentric P is an unbalanced annular mass M, the centre of gravity of the unbalanced part being at D. A link L is jointed to the member E at A and to the mass M at B. The parts must be so proportioned that the angle is between 80 and 130 and the angle B O<1> D is always greater than 87.
Patent GB-578585-A (GB)
Title: Improvements in magnetrons
IPC: H01J25/55
Filed: 1942-04-09
Abstract: 578,585. Magnetrons. M-O VALVE CO., Ltd., and WILLSHAW, W. E. April 9, 1942, Nos. 4694 and 13152. [Class 39 (i)] A magnetron of the kind comprising an anode block 3 with a number of resonating slots 7, has metal plates 8 closing the sides of the slots. At their ends remote from the cathode 9 the slots open into an annular chamber 6 from which energy is taken off by an induction loop 13 and concentric line 14; or energy may be radiated directly from chamber 6 into a short section of wave-guide closed by a glass wall. The annular chamber 6 resonates with a number of circumferential nodes at the generated frequency and the resonant frequency of the slots is made slightly different from this, to simulate the effect of a tapped inductor feed the slots then act more as wave-guides than as resonators. Coupling between the slots and the chamber may be effected by coupling loops located in enlargements in the slots and having antennµ projecting into the chamber. The cathode has end discs 10. When there is no annular chamber, the slots may be enlarged at their ends, with a coupling loop extending into one of them ; or one slot may have a tapered transitional extension opening into a short section of wave-guide closed by a glass disc. Dimensions of examples are given. Specification 540,232 is referred to.
Patent GB-608079-A (GB)
Title: Improvements in or relating to glazing bars
IPC: E04D3/08
Filed: 1946-02-14
Abstract: 608,079. Glazing. AYGEE, Ltd.. OLIVER, J. A., and GEE, G. M. Feb. 14, 1946, No. 4721. [Class 20(iii)] A rigid clamping member 16, preferably formed of extruded aluminium alloy, is used to hold the glass sheet 8 on the lateral flange 10 of the glazing bar 7 which is also preferably formed of extruded aluminium alloy. A bent over portion 18 of the clamping member is engaged in a pocket 13 formed in the web of the glazing bar and it may be prevented from complete withdrawal therefrom by a clip 22 slid over the top of the web or by taper pins passed through holes in the web, the upper edges of which lie above, and the lower edges within, the pocket 13.
Patent GB-156430-A (GB)
Title: Improvements in or relating to extensible tables
IPC: A47B1/03
Filed: 1920-02-16
Abstract: 156,430. Norman, A., and Parker, H. G. Feb. 16, 1920. Expanding tables.-A folding extension leaf for an extensible table is arranged so that when out of use it can be stored beneath sections of the table top, which slide on the inextensible frame of the table. The folding leaf C', C<2>, shown in plan in Fig. 2 and in sectional elevation in Fig. 3, is supported and guided by pins engaging guides D, D<1> arranged as shown. The runners carrying the sliding sections B, B<1> of the table top are geared together by racks and pinions H to cause them to move simultaneously.
Patent GB-698723-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L5/32
Filed: 1952-02-22
Abstract: 698,723. Suction cleaners. HOOVER, Ltd. Feb. 22, 1952 [Feb. 23, 1951], No. 4774/52. Class 8 (i). In a motor fan suction cleaner of the handle propelled type having a main nozzle 8, Fig. I containing an agitator 21, and a converter for off-the-floor cleaning cutting off communication between the fan 19 and the main nozzle 8, the converter carries a skid 63 which when inserted in a rearwardly facing port projects beyond the plane tangential to the front and rear wheels 23, 24 at a position forward of the centre of gravity of the cleaner body. The converter port is normally closed by a spring-biased valve 27 pivoted on a pin 28, Fig. 2 and is opened by the forward end of the converter when the latter fits into a suction air passage 12 to cover the fan eye 10. Spring- biased pivoted blades 50 allow access of the fan shaft 48 to an aperture 52 in the converter, and the latter is latched in position by a hook 57 engaging a pin 58. Guides 34 beneath the passage 12 locate the converter so that the forward end 66 of the skid 63 abuts the underside of the passage 12 so as to take the weight of the cleaner body Specification 576,703 is referred to.
Patent GB-1149612-A (GB)
Title: Improvements relating to electrical microswitches
Inventor: HOLDEN BRIAN ASTBURY
IPC: H01H13/18
Filed: 1966-02-03
Abstract: 1,149,612. Switch actuators. BURGESS PRODUCTS CO. Ltd. 3 Feb., 1966, No. 4796/66. Heading H1N. A lever 16, Fig. 1, for actuating the button 8 of a microswitch 2 has a pair of apertured bent up lugs 18 which are sprung over a pair of opposed projections 14 on opposite sides of the switch body. The arrangement is such that the levers may be readily fitted on to the switch bodies, the projections 14 being of wedged form to gradually separate the lugs 18 when being sprung over. The projections 14 are preferably arranged in recesses 12 on the sides of the switch bodies so that they may be readily assembled side-by-side with abutting flat faces.
Patent GB-566504-A (GB)
Title: Improvements in or relating to the production of cellulose derivative filaments, yarns and the like
IPC: D01F2/30
Filed: 1943-03-24
Abstract: Artificial filaments suitable for the manufacture of staple fibres, yarns, fabrics and artificial wool are produced by extruding a solution having a viscosity not exceeding 50 secs. (determined by a falling-ball method) of an organic derivative of cellulose, e.g. esters or ethers, in a volatile solvent through a spinning jet into a cell through which a current of evaporative medium is passed, the spinning temperature being below the boiling point of the solvent. The process is particularly applicable to the manufacture of artificial wool of improved resistance to stretching, by subjecting the filaments produced as above to the action of a hot aqueous medium, e.g. a hot soap solution, wet steam, or hot water.  Suitable cellulose derivatives are the acetate, propionate, butyrate, acetate-propionate, acetate-butyrate and the Provisional Specification refers to the use of cellulose ethers, such as ethyl and butyl cellulose.  The evaporative medium is a countercurrent or co-current of air, the temperature of which is preferably below the spinning temperature, but may be higher.  Expeditious setting of the filaments is accomplished by reducing the speed of spinning, or increasing the length of path of the filaments through the evaporative medium.  In the latter case, the filaments may be passed through a second evaporative medium at a higher temperature than that of the primary medium.  The filaments may be assembled into yarns, with or without twisting at the time of or after spinning, and the yarns are converted into artificial wool by subjecting them to a hot aqueous treatment in hank form.  Staple fibres may be spun into yarn prior to or after treatment by the hot aqueous medium.  In an example, a solution of cellulose acetate in acetone of viscosity 25 is spun at a temperature of 42 DEG  C. into a current of air at 30-35 DEG  C.  The filaments are twisted and assembled into yarn, which is then treated for 4 hours at a temperature of 90-100 DEG  C. with a 0.5 per cent soap solution, washed and dried.  The yarn is finally given an additional twist. Specifications 424,880, 442,073 and 464,981, [all in Group IX], are referred to.
Patent GB-563525-A (GB)
Title: A method of preserving fruit and vegetables
IPC: A23B7/154
Filed: 1942-03-27
Abstract: Fruit and vegetables are preserved by embedding in a mixture consisting of a dry moisture-absorbent, such as turf dust or lime, a heat and moisture insulating, non-water-absorbing powder, such as shells of diatomaceae, or prepared chalk, and a powdered antiseptic, such as flowers of sulphur, benzoic acid or resorcinol compounds. These latter may be the methyl ester or propylester of paraoxybenzoic acid or hexyl resorcinol.
Patent GB-101381-A (GB)
Title: Split Belt Pulley.
Inventor: NYBERG CARL SIGFRID
IPC: F16H55/46
Filed: 1916-04-03
Abstract: 101,381. Nyberg, C. S. April 3, 1916. l'ulleys. -A pulley having a divided body 1 of the type describee in Specification 5038/11 is provided with ar exchangeable m e t a band rim 6, the ends of which are bolted to gether at 7. The rim 6 may have projections or a longitudinal rib 8 engaging a groove in the parts of the body.
Patent GB-1478421-A (GB)
Title: Electric connections of windows defogging devices
IPC: B60S1/58
Filed: 1975-02-06
Abstract: 1478421 Terminals SOC ITALIANA VETRO SIV SpA 6 Feb 1975 [11 Feb 1974] 5024/75 Heading H2E A connector for soldering to a bus conductor of a window de-mister comprises a plate 1, plated at least on its contacting side with tin, having holes 4 allowing the escape of gases produced during soldering. Integral with said plate is a tongue 2 being provided with a hole 3 for receiving a lead from the power supply. Two right-angle bends are made in the tongue 2 about axes 5 and 6 so that it is parallel but not co-planar with plate 1. In a second embodiment (Fig. 3, not shown) the tongue 2 is further bent so part of it is not parallel with the plate 1.
Patent GB-286447-A (GB)
Title: Improvements in or relating to reciprocating fluid pressure engines
IPC: F01B17/04
Filed: 1927-02-23
Abstract: 286,447. Wagner, A. E. Feb. 23, 1927. Central-valve engines; compound and multipleexpansion engines.-A multiple-expansion engine has a series of concentric cylinders A, B. C containing pistons D, E, F in the form of hollow vessels which serve as intermediate receivers. The pistons are connected together and drive a common rod connected to a crank-pin J<1> on the shaft J. The fluid inlet is controlled by a lift valve R operated by a cam R' on the shaft. The transfer of the fluid from one cylinder to the next receiver and from a receiver to the next cylinder is controlled by a slide valve having heads G, K, L, pressed down by the fluid pressure and operated by a cam P<2> on the crank-pin J<1> which through a tappet rod P mounted to slide on the connecting-rod H operates the valve through a connecting-rod M and a lever O connected thereto by a universal joint. Two engines may be connected in opposition or through link mechanism to the crank-shaft to get a double-acting engine. Any number of engines may drive one shaft.
Patent GB-1378424-A (GB)
Title: Apparatus for mixing a plurality of liquids and a method of mixing such liquids
IPC: B29B7/74
Filed: 1972-02-03
Abstract: 1378424 Mixing flowing liquids; spraying F E IVES 3 Feb 1972 [10 Feb 1971] 5161/72 Headings B1C and B2F A static homogenizer for liquids of widely differing proportions and viscosities comprises a tortuous flow path with by-pass passages providing cross-currents. As shown in Fig. 5 the flow guide 17 is a helical insert and the by-pass passages are formed as notches 25. The rows of notches may be axial as shown, or skew (see Figs. 6 and 7, not shown) and may be replaced by axial or skew rows of perforations in the helical flight (see Figs. 8-10, not shown). In one embodiment, Fig. 1, the homogenizer is arranged between an initial mixing chamber 3 and a spray nozzle 9 in a spray gun to which liquid polyester resin and catalyst are metered (by means not depicted) through respective regulating valves 5, 8, check valves 12, 13 and ducts 2, 6. A flushing solvent may be supplied through valve 11. In another embodiment, Fig. 11, the homogenizer is arranged vertically for gravity flow.