baber/WOPTO huggingface dataset:
Patent GB-521432-A (GB)
Title: Improvements in or relating to porous ceramic articles and to their process of manufacture
IPC: B01D29/00
Filed: 1938-11-19
Abstract: 521,432. Making ceramic articles. DOULTON & CO., Ltd., and ALLEN, J. Nov. 19, 1938, No. 33714. [Class 87 (i)] A porous ceramic article suitable for filtering, aeration, gas diffusion, and like purposes, having a non- porous part or parts serving for the support or clamping of the article in position for operation, is made by first shaping the porous and non - porous parts into the desired form, and then firing them together to unite them into an integral whole. Fig. 4, shows a plate for a filter press having a porous part A, a'non-porous threading ring B, and a non-porous rim C provided with non-porous supporting arms D.
Patent GB-1073667-A (GB)
Title: Improvements in hobs
IPC: B23F21/16
Filed: 1965-08-06
Abstract: 1,073,667. Hobs. H. KRUSE, [trading as WILHELM FETTE]. Aug. 6, 1965 [Sept. 18, 1964], No. 33741/65. Heading B3K. A hob or roughing cutter comprises alternate inserted or integral teeth 1 of equal cutting depth t 1  set on a helix and at least one intermediate tooth 2, 3 of less depth t 2 , t 3 .
Patent GB-844796-A (GB)
Title: Improvements in or relating to drawout electrical relays and the like electrical equipment
Inventor: BOWYER ARTHUR WILLIAM
IPC: H05K7/16
Filed: 1957-10-29
Abstract: 844,796. Switch cases. GENERAL ELECTRIC CO. Ltd. Oct. 22, 1958 [Oct. 29, 1957], No. 33762/57. Class 38 (5). [Also in Group XXXVI] A frame 3 for holding an electrical relay supports a set of contacts 10 and fits within. case 1 supporting contacts 11, connection between the two sets being made by bridge contacts 20 positioned at one end of lever 17 which also serves to lock the frame in the case when contact is made. Frame 3, comprising apertured plates 8 connected by vertical struts 9 is fixed by hinge pins 7, to side plate 4 so that when the frame is withdrawn from the case it may be swung through a right angle for inspection. Grooved studs 5 engage rails 6 to enable frame 3 to be withdrawn. Contacts 10 each comprising a pivoted blade 12 mounted in block 13 are urged towards fixed metal strip contacts 11 by springs 14. Contacts 10, 11 do not directly engage, contact being made by a set of metal loops 20 mounted on insulating strip 19 fixed to locking lever 17. Lever 17, pivoted at 21, has slot 22 engaging pin 23 mounted in the wall of case 1 to lock frame 3 in position when contact is made. For withdrawal of frame 3 portion 24 of slot 22 is cut away, ball catch 25 on lever 17 fitting into indentation 26 in the case wall, to align portion 24 with pin 23. In a modified construction a bridging contact spring urged towards the fixed contacts is provided to short out current transformer circuits on unlocking the frame (Fig. 4, not shown).
Patent GB-1004205-A (GB)
Title: A zirconium alloy
IPC: H02P1/50
Filed: 1963-08-26
Abstract: A zirconium based alloy contains 0.005-1% Y and at least 0.05% of one or more of Nb, Sn, Cu, Fe, Cr, Ni, Mo, W, V, Ta and Pd up to 5% each, the balance (apart from incidental impurities) being zirconium.
Patent GB-983817-A (GB)
Title: Improvements in or relating to synthetic resins
Inventor: LITCHFIELD JOHN
IPC: C08F265/06
Filed: 1962-09-04
Abstract: A methacrylate polymer or copolymer is copolymerized with a methacrylate ester and an unsaturated diester.  The methacrylate polymer may be methyl, ethyl, propyl, n- or iso-butyl or 2 - ethoxy - ethyl methacrylate or a copolymer of the foregoing with styrene.  The methacrylate ester may be the same as the foregoing list of esters. The diester may be di-2-ethyl-hexyl maleate, fumarate or itaconate. A further monomer, e.g. styrene, divinyl-benzene, may be introduced. The reagents are heated in the presence of a polymerization initiator, e.g. benzoyl peroxide or azo compound, which may be the residual initiator present in the methacrylate polymer.  The resin may be used to form dentures, artificial ears, noses and earpieces.ALSO:A surgical or similar device to be used in contact with the skin has a surface in part at least of, or comprises, a methacrylate polymer copolymerized with a methacrylate ester and an unsaturated diester.  The device may be a denture, artificial ear or nose, or earpiece for a hearing aid and is formed from a dough of the above reagents which is then cured in the shape required.  An example is given of a denture having a soft surface formed, with the above reagents, on a base of a conventional resin.
Patent GB-390108-A (GB)
Title: Improvements in or relating to mercury vapour lamps
IPC: H01J61/52
Filed: 1932-11-30
Abstract: 390,108. Mercury - vapour lamps. GOURDON, G., 1, Rue St-Denis, Montmorency, Seine-et-Oise, France. Nov. 30, 1932, No. 33947. Convention date, Nov. 30, 1931. [Class 39 (i).] In a lamp a which is protected from excessive cooling by an evacuated quartz jacket b, the exhaustion of the lamp and of the vessel is facilitated by arranging the lamp nipple d to pass through the jacket at a part thereof near to the jacket nipple c.
Patent GB-318095-A (GB)
IPC: H04B3/26
Filed: 1928-11-20
Abstract: 318,095. Siemens - - Schuckertwerke Akt.-Ges. Aug. 27, 1928, [Convention date]. Transmissionconductor arrangements; systems depending on the use of two or more machines.- The output capacity of long-distance conductors is increased by electrostatic or electrolytic condensers, or synchronous machines or asynchronous phase-shifters or other wattless-current producers, distributed along the conductor in series therewith and automatically regulated to compensate the wattless-energies on the line at all loads. Condensers &c. may be inserted directly or through transformers determining the condenser voltage. The condensers or the transformers may be regulated, on change of current in the line, by a voltage.-sensitive regulator operating in a fraction of the time of one surge or oscillation of the machines of the, power stations connected to the line. The regulation is such that E<2> #C/L is maintained equal to W, where E and W are the voltage and power transmitted, C is the self-capacity of the, line and L the value of the effective self-inductance of the line as decreased by the inserted capacities or, if machines are used to produce wattless-currents and if small outputs are transmitted, as increased by the inductive effect of such machines. The long line then behaves as an ohmicresistance. The condensers &c. are inserted at intervals small compared with the natural wavelength of the currents in the conductor, i.e. the wavelength corresponding to the constants of the conductor without the inserted condensers, and may be arranged at the existing stations. Single and 3- phase systems may be thus compensated. Specification 2147/09 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also arrangements in which fixed condensers &c. are inserted at intervals in series in the line, with or without choking-coils or like wattless-current producers inserted at intervals in. parallel to the line to compensate its self-capacity. This subjectmatter does not appear in the Specification asaccepted.
Patent GB-357842-A (GB)
Title: Improvements in transferable containers for railway and other vehicles
IPC: B65D88/56
Filed: 1930-11-12
Abstract: 357,842. Transferable containers for vehicles. BROWN, F. A. J., 11, Chertsey Road, Redland, Bristol. Nov. 12, 1930, No. 34097. [Classes 103 (iv) and 108 (i).] A transverable container for railway and other vehicles comprises an open-topped receptacle with a sliding door f, shackles g, h being provided for attaching lifting tackle. The sides and door are provided with straps c and the door opening is bounded by plates k and hoop o. Dogs mare hinged to the door and are provided with tongues n<1> adapted to engage below the loop o and lock the door in position. The door is released by levers v having cam projections v<1> and is adapted to slide vertically to enable the contents to be discharged. Pintles t, u at the sides of the top and bottom of the door serve to guide the door. The bottom of the door when closed is flush with the floor of the container and in front of it the bottom of the door straps c being bevelled off to prevent interfering with the complete closing of the door.
Patent GB-1174447-A (GB)
Title: Improvements in or relating to Tunable Output Coupling Devices for Travelling Wave Tubes.
IPC: H01J23/48
Filed: 1967-07-26
Abstract: 1,174,447. Travelling-wave tubes; impedance matching. SIEMENS A.G. 26 July, 1967 [27 July, 1966], No. 34207/67. Headings H1D and H1W. The resonant delay line of a travelling wave tube is tunable by an output coupling arrangement which includes a non-magnetic hollow conductor forming a section of transmission line, and a slide member formed at least in part of ferromagnetic material and movable axially within the transmission line by an external magnet arrangement. The transmission line may be waveguide or, as shown, a coaxial line having an output connector plug 10 at one end and matched at the other end to the resonant delay line of the travelling wave tube, to which it is tightly coupled via a window (not shown), by a member 2 which is bent and shaped to merge into and form the inner conductor 3 of the coaxial line. The tuning member 5 is a hollow iron annulus, silvered to reduce loss and maintained radially in position by sets of plastics members 6, and is movable axially by means of the coaxial permanent magnet 8 supported between and guided by two annular polepieces 9, to tune the delay line. Slots 11 are provided in an end wall of the tuning member 5, the coupling to the output plug 10 being adjustable by a dielectric plate 13 mounted adjacent the end wall of member 5, and provided with metallized portions corresponding in shape to the coupling slots, and two diametrically opposed, arcuate, silvered, iron strips 15, by means of which the plate may be rotated with an external magnet 16 to vary the effective coupling slot size to permit optimum output to be obtained at each frequency. Alternatively, a solid annular tuning member may be employed, coupling to the output being effected via an annular gap between the inner periphery of the tuning member 5 and the inner conductor 3 of the coaxial line, which are arranged eccentrically with respect to the outer conductor 1, such that rotation of the tuning member by an external radially magnetized magnet produces a variation in the size of the coupling aperture. In a further modification, the required variation of coupling aperture with frequency to ensure optimum output for a given travelling wave tube is achieved by a suitable variation along its length of the dimensions of a conductor included in the coupling.
Patent GB-301654-A (GB)
Title: Improvements in controlling electro magnets for lifting and transporting and in apparatus therefor
IPC: H01F7/18
Filed: 1927-12-19
Abstract: 301,654. Younghusband, K., and Summers & Sons, Ltd., J. Dec. 19, 1927. Electromagnets. - The circuit of a lifting- magnet is so controlled by means of a dash-pot or like device, that the energizing current is maintained at a maximum for a certain period and then reduced to an amount sufficient to retain the load. A switch member 5d closes the circuit of the lifting-magnet coil 1<a> through contacts 5<a>, 5b, and, through contacts 5<a>, 5<c>, the circuits of two electromagnets 2<a> and 4<a>. The magnet 2<a> immediately closes a switch 2b in the circuit of the magnet coil, while the armature of the magnet 4a is retarded by a one-way dashpot 4<c>. After a certain time, depending on the adjustment of the dash-pot, the magnet 4<a> opens a switch 4b in the circuit of the magnet 2<a>, whereon the switch 2b opens and a resistance 3 is thrown into the circuit of the lifting-magnet coil.
Patent GB-507740-A (GB)
Title: Control of pump priming systems
IPC: F04D9/06
Filed: 1938-08-15
Abstract: 507,740. Centrifugal pumps. COVENTRY CLIMAX ENGINES, Ltd. HATHAWAY, L., and WOODDISSE, J. T. Aug. 16, 1938, No. 34315. Divided out of 507,716. [Class 110 (i)] A pump P, driven by an internal-combustion engine 13, is primed by the diversion of the exhaust gases from their normal outlet pipe 15, to a restricted orifice 18 and thus causing suction in a pipe 21. A lever 29, biassed by a spring to the position shown, is pulled over to close a valve 16, and afterwards open a valve 28 to create the suction to the pump inlet pipe 22. Liquid drawn up from the latter is held by a trap 23, in the manner described in Specification 507,716. A pipe may connect the outlet 20 to the silencer 32, as described in Specification 507,717. Lost motion in the linkage 30 is secured by a pin- and-slot connection 30a. Fig. 2 shows a pet cock 33 provided on the suction side of valve chamber 27, which has to be opened before the lever 29 may be moved downwards a sufficient distance, to allow the opening of the valve 28.
Patent GB-1244241-A (GB)
Title: Improvements in and relating to the production of holographic information
IPC: G01H3/12
Filed: 1969-07-09
Abstract: 1,244,241. Holography. HOLOTRON CORP. 9 July, 1969 [15 July, 1968], No. 34551/69. Heading H4D. [Also in Divisions G1 and G2] In forming holographic information of an object the object is illuminated with a source of coherent radiation and simultaneously a relative scanning movement is produced between source and object, and object and receiver over respective surface areas, a reference signal coherent with the source radiation being mixed with the object modified radiation detected by the receiver. A signal from a coherent oscillator 125 is fed to a source transducer 111 mounted upon a block 147 movable by drive means 161, 175 and guides 151-159 to scan a defined area 115. A transducer receiver 113 is also mounted upon block 147 so that both source and receiver 111, 113 simultaneously scan area 115. The output from source 111 is an ultrasonic signal which is reflected off object 117. The reflected waves received at 113 are reconverted to an electrical signal and mixed at 131 with a signal from oscillator 125 representing a reference signal coherent with the output source. The signal from mixer 131 which represents that to be recorded as a hologram is fed to a processor 133 which modulates a scanning light source 135 and thus provides a photographic record of the hologram at 139. A photodiode 141 adjacent source 135 can be used in a feedback loop to processor 133 to compensate for non-linearity of light source 135. If desired the output from processor 133 can be displayed on the screen of an oscilloscope 143 and a photograph taken to provide the hologram. In either case the light source 135 or the oscilloscope 143 must scan synchronously with the source 111 and receiver 113. The illuminating radiation may be visible light or microwaves. It is not necessary that the source and receiver be linked together. They can scan independently over separate areas.
Patent GB-406962-A (GB)
Title: Improvements in vises for matrix composing and type line casting machines
IPC: B41B11/38
Filed: 1933-12-08
Abstract: 406,962. Type-bar-making machines. INTERTYPE CORPORATION, 360, Furman Street, Brooklyn, New York, U.S.A. Dec. 8, 1933, No. 34585. Convention date, March 2. Addition to 402,809. [Class 100 (iii).] Clamping and justifying matrices.-In the jaw closing and locking mechanism described in the parent Specification, the jaws, after they have been relieved from the pressure of the closing device for the purpose of aligning and justifying the line, are again pressed against the line, during the casting, by the jaw-closing device itself, instead of by a separate locking-device. For this purpose, the lever 29, Fig. 3, that operates the jaws 14, 15 through a link 29<a> and a lever 18, is provided with an additional camsurface 33<a>, located between the cam-surfaces 33, 34 by which the jaws are closed and opened under the action of the roller 37 on the camshaft 35. As the vice-jaws are free during the rise of the justification bar 64, Fig. 1, undesirable spreading of the line is prevented by a stop 114, which is adjustably secured to a lever 115 by a thumb-screw 117, and is movable into the path of a sleeve 118 on one of the justification rods. If the line is too short to be spread to column width, the stop 114 is brought into action by an adjustable member 123 on the rack-bar 82 that operates the right-hand jaw 14. The member 123 rocks a lever 120, which is connected by a link 121 to the stopcarrying lever 115.
Patent GB-1191624-A (GB)
Title: Improvements in or relating to Resinous Components for use in Electrical Insulation
Inventor: HARRISON DAVID JAMES
IPC: H01B3/40
Filed: 1966-08-02
Abstract: 1,191,624. Moulding insulating materials. ENGLISH ELECTRIC CO. Ltd. 1 Aug., 1967 [2 Aug., 1966], No. 34609/66. Heading B5A. [Also in Division C3] A filled or reinforced heat cured synthetic resin insulator component of improved dielectric loss angle (tan #) is moulded by applying an alternating electric stress of at least 7À5 Kv./in. e.g. of 50 or 60 c.p.s., across substantially all the moulding, whilst it is being heat cured, at least until the resin is gelled and preferably until it is fully cured; the applied alternating stress is maintained lower than that necessary appreciably to accelerate the resin cure or to cause an electrical flashover and is believed to act to cause local heating and breakdown and dispersion of contaminants which would otherwise cause a high loss factor at the resin/filler interfaces. The mould walls for a flat plate may be insulated and the interior surfaces of opposed walls thereof may comprise plates of copper or a spray deposition thereof connected to exterior terminals whereby the stress is applied as the mould containing vacuum mixed epoxy resin and hardener and dried silica flour is cured within an oven. A glass cloth reinforced plate is similarly produced. Glass cloth reinforced synthetic resin insulator tubes, e.g. for air blast circuit breakers, are produced by winding the cloth on to a steel mandrel which is inserted into a cylindrical mould of insulating material coated in the interior with electrically conducting material. The glass cloth may be impregnated with an adduct of bis-phenol A and epichlorohydrin with aromatic amine hardener or, alternatively the resin may be cast into the mould, preferably via a groove extending axially along the mould internal wall to the base thereof. Alternatively, the mould parts comprising electrodes may be formed of electrically conducting material, with suitable separating insulation. The electrical stress may be applied to the mould electrodes before the reinforcing material is impregnated providing that it is maintained until the resin has gelled.
Patent GB-977542-A (GB)
Title: A safety device for the prevention of explosion accidents in gas conduits
IPC: F16L55/027
Filed: 1962-09-11
Abstract: 977,542. Regulating fluid flow. ZAVODY PRUMYSLOVE AUTOMATISACE, NARODNI PODNIK. Sept. 11, 1962 [Sept. 11, 1961], No. 34622/62. Heading G3H. A safety device for the prevention of explosions in gas conduits comprises a casing 1 and a series of discs 2 each having a circular groove 3 in the face. Each disc except the end ones is provided with diametrically opposite through parts which intersect the grooves. The end discs are each provided with only one such part and the discs are clamped together to provide passages 4 and 5 such that gas entering the body at 6 passes into the passage 4, flows round the grooves and leaves through the passage 5. One cross-sectional dimension of the groove is less than the link width of the explosion wave of the gas. In a modification, the grooves are formed on the periphery of the discs. Two or more such stacks of discs may be arranged in a single housing.
Patent GB-299638-A (GB)
Title: Catamenial appliance
IPC: A61F13/53
Filed: 1927-12-21
Abstract: 299,638. Masher, G. R., and Sale, G. S. Dec. 21, 1927. Catamenial appliances. - A sanitary napkin comprises a substantially rectangular piece of knitted material the opposite edges 14, Fig. 2, of which are folded towards the centre line 13; the whole is then folded about the centre line to bring the faces 11, 12 together. Tabs 30, 31, Fig. 3, provided with button-holes are then sewn on and the sewing continued along the edge 35 constituted by the original centre line. The whole forms a pocket into which a sheet of rubber, rubberized cloth or silk, antiseptic paper or other absorbent or waterproof material may be inserted through the edge opposite to the sewn edge.
Patent GB-1175349-A (GB)
Title: Improvements in or relating to Ferromagnetic Cores and Methods of Constructing them.
IPC: H01F41/02
Filed: 1968-07-22
Abstract: 1,175,349. Making ferromagnetic cores; coiling flat spirals. HONEYWELL Inc. 22 July, 1968 [21 July, 1967], No. 34784/68. Headings B3A and B3E. A ferromagnetic core is made by winding a ribbon, strip or wire of ferromagnetic material around a bobbin or a part thereof and a laminar spacing member (31), Fig. 3 (not shown), in contact therewith and then removing the spacing member. The bobbin is preferably in two parts 11, 22 adapted to fit one within the other, the material being wound around the inner part so that it is contained within a chamber 26 formed between the two parts.
Patent GB-1482665-A (GB)
Title: Process for the production of planographic printing forme
IPC: B41N1/14
Filed: 1974-08-07
Abstract: 1482665 Producing printing plates by electron beam exposure HOECHST AG 7 Aug 1974 [9 Aug 1973] 34871/74 Heading G2C A material comprising a metallic support and a layer of hydrophilic light insensitive material is imagewise exposed to an electron beam to harden and render oleophilic the exposed areas and thus produce a lithographic plate specified materials are water-soluble polymers, dyes, carbohydrates and surfactants and water-insoluble polymers and silicic acid, and boehmite, silicate or other layers on Al supports. In the examples, a roughened Al plate with a hydrophilic layer thereon formed (i) by treatment with Na silicate to give a silicate layer or (ii) by coating with polyvinyl pyrolidone, polyvinyl phosphonic acid, casein, tannin or wheat gluton is imagewise exposed to electron beams and used immediately for printing. Alternatively (i) an Al/Cr bi-metallic plate coated with polyvinyl alcohol, dextrin, gum arabic or starch, (ii) an anodized Al plate either coated with polyethylene glycol or treated with hot water to produce a Brehmite layer, or (iii) a roughened Al plate coated with surbitol, cane sugar, glucose, lactose or maltose may be used. In a further example a roughened Al plate is coated with a dye, e.g. Crystal Violet, imagewise exposed and unexposed areas washed off before printing.
Patent GB-1514873-A (GB)
Title: Annular gap washer for blast furnace gas
IPC: B01D47/10
Filed: 1976-08-21
Abstract: 1514873 Annular gap gas washer GOTTFRIED BISCHOFF BAU KOMPL GASREINIGUNGSUND WASSERRUCKKUHLANLAGEN KG 21 Aug 1976 34937/76 Heading B1R An annular gap venturi gas washer has an axially movable control body 3 whose leading surface comprises an abrasion-resistant covering 8. This may be a welded coating or built up of abrasion-resistant units. The extent A of the covering is substantially equal to the diameter of the narrowest cross-section of 3.