baber/WOPTO huggingface dataset:
Patent GB-1282886-A (GB)
Title: An air-treatment unit for use with a lampshade or carrier attachable to an electric lampholder
Inventor: WILLIAMS HENRY GEORGE
IPC: A61L9/03
Filed: 1969-06-11
Abstract: 1282886 Vapourisers H G WILLIAMS 11 June 1970 [11 June 1969] 29583/68 Heading A5G A device for use in conjunction with an electric lamp for volatilising disinfectants, perfumes, &c comprises an annular container .2 for a solid vapourisable material which melts under the heat of the lamp having shoulders 4 and a throat 6 defined by walls 5 and a lid 1 therefor having perforations 9 and a channel-sectioned part 3. The lid is intended to be a firm fit on the container, the channeled section being suitable to affix to the edge of a lampshade (see Figs. 1 and 3, not shown). The device may also be used in conjunction with mounting means comprising spring clips which grip the container, the mounting means either being formed integrally with a lampshade or as an attachment which can be fixed in a lampholder (see Figs. 4 and 5, not shown). The volatile material may be a hydrocarbon solvent containing spermacetic wax.
Patent GB-1437583-A (GB)
Title: Rotary piston internal combustion engine having a ring seal assembly
IPC: F01C19/08
Filed: 1974-07-04
Abstract: 1437583 Axial mechanical sealing: oil seals NISSAN MOTOR CO Ltd 4 July 1974 [12 July 1973] 29613/74 Heading F1F An oil ring seal 44 is mounted in a groove 42 in an end face of an epitrochoidal I.C. engine's rotary piston and two auxiliary sealing means extend between the radially inner and outer, axially extending faces of the ring seal 44 and the adjacent, similar faces of the groove 42. In one embodiment Fig. 2 the two sealing means comprise an annular ring 50 of rectangular cross-section and an O ring 47. Alternatively the ring 47 may be replaced by a similar ring to ring 50 in which case an O ring is located between the inner ends of the seal 44 and groove 42 or the ring 50 is replaced by one of circular cross-section. The seal 44 is urged outwardly from the groove by a wavy spring washer 46.
Patent GB-915754-A (GB)
Title: Stud tensioner
IPC: B25B29/02
Filed: 1960-08-29
Abstract: 915,754. Bearings. DIAMOND POWER SPECIALITY CORPORATION. Aug. 29, 1960 [Oct. 26, 1959], No. 29687/60. Class 12 (1). [Also in Groups XXII and XXV] In apparatus for tensioning or unscrewing studs (see Groups XXII, XXV), a thrust nut 22, in which a draw-bar 19 is threaded, has a ring of spring-loaded plungers 51 normally protruding from holes around the nut edge to bear on a washer 24 supported on a plate 18 by which the apparatus is suspended. The cylinder 31 of an hydraulic piston motor by which the stud 12 is tensioned is supported on a spherical bearing 37 on a pedestal having legs 42. Specification 915,755 is referred to.
Patent GB-537861-A (GB)
Title: Gas blast circuit breaker
IPC: H01H75/04
Filed: 1939-11-09
Abstract: 537,861. Gas-blast switches. AKT.-GES. BROWN, BOVERI, & CIE. Nov. 9, 1939, No. 29742. Convention date, Nov. 17, 1938. [Class 38 (v)] The " fixed contact b of a gas-blast switch is operated to set up a small break gap for power-interruption, whereupon, normally, the contact c is lowered to provide the voltage-isolating gap and b recloses. On fault, c remains closed and b immediately recloses one or more times before c finally opens, so as to reduce the number of disconnections due to arcing faults. The contact b is opened by the blast-gas admitted to the insulating chamber a, which pressure, after arc-extinction, also enters the bore of, and depresses, a piston f against spring-action g, so enabling the valve d to close the outlet of contact b, and reclosure of b by spring e and, subsequently, opening of c to take place under gaspressure, which is not released until after the whole operation is completed. The "fault" operation is initiated by a relay (not shown), and the contact b and valve d are driven positively in the return movements by pressure admitted at k. In a modification, Fig. 2 (not shown), the contact c is also made hollow and when closed communicates with a valve similar to that d. In a further form, Fig. 3 (not shown), the solid or hollow contact c performs both operations by making strokes of different lengths, the Specification referring to oscillation of the contact during the first stroke.
Patent GB-957671-A (GB)
Title: Improvements in and relating to electric oscillation generators
Inventor: APPLEYARD ALBERT HENRY
IPC: H03B17/00
Filed: 1959-09-01
Abstract: 957,671. Automatic speed control. ADVANCE COMPONENTS Ltd. Aug. 30, 1960 [Sept. 1, 1959; Jan. 8, 1960], Nos. 29777/59 and 733/60. Heading G3R. A low-frequency generator comprises lamp 10 energized from high-frequency oscillator 11, providing a steady light output from the lamp, and a photo-cell 12 associated with disc 13 carrying a series of annular tracks the opacity of which varies round the disc in accordance with the waveform desired from the generator. The disc is driven by motor 14 through gear box 15. The output of cell 12 is applied to D.C. amplifier 16 whose output circuit may include a pulse shaper 20. A cathode follower stage 21 is connected to network 22 for superimposing the waveform upon a direct voltage, an attenuator 23 and a reversing switch 24 being used, and the output appearing at terminal 25. The output from a motor-driven tachometer generator 26 is applied through amplifier 27 to a D.C. comparator circuit 28 to which also is fed a reference voltage from source 30 adjustable by means of impedance 31. The output of the comparator controls the field-current of the motor, so that, by varying the reference voltage, the speed of the motor, and hence of the disc, can be controlled. The range of control can be increased by gear box 15. The output of cathode follower 21 is fed through amplifer 33 to cathode ray tube 34, for monitoring the waveform of the output. Time-base circuits 35 for the cathode ray tube are also synchronized by an output of amplifier 33. The oscillator stage 11 comprises two cross-coupled valves, the output being supplied to the lamp through a transformer. The amplifie. 16 comprises a valve with a Zener diode in its cathode circuit for stability, whilst the cathode follower stage 21 includes two parallel valves or a pentode. The attenuator 23 is of the tapped potential divider type. Voltage-limiting resistors of the non-linear type may be shunted across the field windings of the motor. The cathode ray tube may have electrostatic deflection, the time base generator being a transitron, Fig. 2 (not shown). A suitable form of variable speed drive between the motor and disc comprises gear trains selectable by clutches having a common operating member. One of the gear members may be coupled to the impedance 31 to provide an automatic and continuous change of frequency of the generator, Fig. 3 (not shown). The same motor may drive two discs for producing two similar wave forms having a desired phase relationship, or further tracks may be provided on the same disc, the outputs from these tracks being combined.
Patent GB-1068068-A (GB)
Title: Mass flow measuring systems
IPC: G01F1/78
Filed: 1964-07-24
Abstract: 1,068,068. Measuring fluid flow. A.J. SIPIN. July 24, 1964, No.29807/64. Heading G1R. In a mass flowmeter a length of tube 18, supported on flat springs 19, 20 between an inlet port 14 and an outlet port 16, is vibrated by a vibration driving coil 11 and the vibration velocity is sensed by a coil 12, the mass flow rate is then computed from readings of an ammeter 3 in circuit with the coil 11 on a voltage phasemeter 7. In a further embodiment the oscillatory tube is secured at one end and oscillated at the other end. In yet a further embodiment a pair of coaxial pipes are arranged tandem, the upstream tube being oscillated by vibration of the downstream tube to give an indication of fluid flow. In yet a further embodiment the tube is oscillated by a pivoted support lever and the devices sensing the motion of the tube is arranged below the tube.
Patent GB-1397606-A (GB)
Title: Analogue to digital converter
IPC: H03M1/00
Filed: 1972-06-26
Abstract: 1397606 Position encoder error correction SOC ANON D'ETUDES ET REALISATIONS NUCLEAIRES 26 June 1972 [29 June 1971] 29844/72 Heading G4H A digital position encoder with cyclic binary coding has an extra track S corresponding to but lagging by one step the least significant track A. A transcoder converts the cyclic binary to binary with least significant digit a and exclusive OR circuit produces the modulo two sum of S, A and a. If the last digit of this is 1, 1 is added to or subtracted from the binary number depending on whether a is 1 or 0 respectively. The position may be read from the encoder by any method and the A and S tracks are preferably laid side by side in the area where lack of parallelism of the lines of pickup heads to the lines of the encoder transitions is least. The system corrects for errors in transitions in any line other than A and S. Sensors 20A-20H pick up the cyclic binary signal and sensor 20S the extra track. The cyclic binary signal is converted to pure binary by transcoder 10 and the output on lines a to h is fed to the inputs of an eight bit adder 15. An exclusive OR circuit 11 is fed from sensors 20A to 20S and the output of gate 11 is fed to the input of exclusive OR gate 12 along with signal a from the output of transcoder 10. The output of gate 12 is fed to one input of AND gates 13 and 14 and to the other inputs are fed a (via inverter 16) and a. The output of gate 13 produces a 1 at all the inputs of adder 15 and thus subtracts 1 from the total therein. The output of gate 14 is applied to the carry input of adder 15 and adds 1 to the total therein.
Patent GB-827931-A (GB)
Title: Method and apparatus for sealing the ends of tubes
IPC: B23K13/06
Filed: 1957-09-23
Abstract: 827,931. Welding by fusion; making nuclear fuel elements. BABCOCK & WILCOX CO. Sept. 23, 1957 [Sept. 28, 1956], No. 29858/57. Classes 83 (2) and 83 (4). The end of a metallic tube is sealed by inserting a close-fitting metallic closure, passing a stream of inert gas, e.g. argon or helium, around the tube and the closure and fusing the inner surface of the end of the tube and the contacting surface of the closure by high-frequency induction heating to produce a leakproof weld. The closure 15, Fig. 4, may project from or be flush with the end of the tube 10. The tube 10 is clamped in a position determined by the setting of a gauge-rod 43 which is retracted by an hydraulic ram 42 prior to welding. The shielding gas is passed down a quartz tube 21 which is surrounded by an induction heating coil 20 energized under control of a timer to weld the tube 10 and closure 15 without excessive melting. The shielding gas cools the external surfaces of the tube 10 and closure 15 so that only their contacting faces are fused. The closure may be cupshaped. In a modification, Fig. 3, the tube 10 is clamped by members 34, 35 within the quartz tube 21 at a position determined by a gauge rod 30. The tube 10 and closure 15 may be of stainless steel and after one end of the tube is sealed the tube is filled with fissionable material and the other end is sealed in similar manner to form a fuel element for an atomic reactor.
Patent GB-427894-A (GB)
Title: Improvements in or relating to the recovery of organic constituents present in blackliquor in making paper by the caustic soda process
IPC: D21C11/00
Filed: 1933-10-28
Abstract: A process for recovering organic constituents present in black liquor obtained when making paper pulp by the caustic soda process comprises heating concentrated black liquor with caustic potash, dissolving the resulting mass in water, cooling to crystallise the sodium oxalate present, and treating the filtrate from the sodium oxalate with oxalic acid to form potassium acid oxalate which crystallizes.  The filtrate is distilled to recover the acetic acid and the residue treated with lime to precipitate any remaining traces of oxalic acid. In a modification, the solution obtained by adding water to the mass from heating the black liquor with caustic potash is causticized with slaked lime to precipitate the oxalates as calcium oxalate and leave an alkaline solution. The calcium oxalate may be sold as such or converted to oxalic acid by treatment with sulphuric acid.
Patent GB-246446-A (GB)
Title: Improvements in or relating to wick lamps or stoves
IPC: F23D3/00
Filed: 1925-11-27
Abstract: 246,446. Jourdan, A., and Guillemaut, P., (Assignees of Poulain, H. K. V.). Jan. 21, 1925, [Convention date]. Wick burners, annular, flame regulating in; oil reservoirs.- The wick of an oil lamp or stove is arranged between cylindrical tubes the outer or both of which are spaced at a sufficient distance to allow the air and vapours from the reservoir to circulate and to pass upwards to feed the flame. Fig. 3 shows a lamp in which the wick i fits on a tube h in the reservoir a and is surrounded by a spaced sleeve e. Air entering the reservoir by an aperture l in the filling-plug k becomes charged with vapours by contact with the fuel in the reservoir and with the wick i during its passage through the sleeve e to the flame. The sleeve e is mounted adjustably by means of a pin-and-slot connection in a flange d in the reservoir and carries a gallery f supporting a lamp glass g formed with a reduced portion g<1>. The regulation of the flame may be effected by raising or lowering the sleeve e. The tube h may extend the whole depth of the reservoir so as to provide a central air supply' to the flame. To enable the lamp to be used as a stove sleeves on the reservoir may be fitted with rods carrying a supporting disc. Fig. 4 shows a modified form of burner in which a cylindrical chimney g<2> is carried by a gallery f<1> formed with a constriction f<2>. The Specification as open to inspection under Sect. 91 (3) (a) states that the circulation of air may take place on the inside of the wick only and also that the tube h and sleeve e may be connected together and regulation of the wick effected by adjusting the wick in the ordinary manner. Fig. 5 (Cancelled) shows another form of burner in which the wick i and a ring m of pumice stone or other porous material are secured to the top of the tube h by a ring n so that the flame does not come into contact with the wick. This subject-matter does not appear in the Specification as accepted.
Patent GB-774897-A (GB)
Title: Improvements in or relating to polymerization
IPC: C08F2/46
Filed: 1953-10-30
Abstract: Ethylenically unsaturated compounds are polymerized, copolymerized or telomerized under a pressure of at least 1000 lbs./square inch absolute in the presence of ionizing radiation of polymerizing intensity.  Electromagnetic radiation of high frequency which has not been deflected by electric or magnetic fields such as gamma-radiation, obtained for example from cobalt 60, or tantalum 182, or from naturally occurring potassium 40, bismuth 214, protactinium 234, thallium 208, and lead 211 or X-rays is preferred. Monomers include propylene, isobutylene, 2-ethyl hexene-1 and pentene-1; acrylic, haloacrylic and methacrylic acids, a -chloroacrylic acid, acrylonitrile, methyl, ethyl, butyl, octyl, cyclohexyl, methoxymethyl, n-butoxyethyl, n-butoxyethoxyethyl, b -diethylaminoethyl, and chloroethyl methacrylates, methacrylamide, ethyl acryiate; vinyl and vinylidene chlorides and fluorides, 1-fluoro-1-chloroethylene, trifluorochloroethylene; vinyl laurate, chloroacetate, propionate and stearate; allylidene diacetate, N-vinylphthalimide and succinimide, N-vinylcaprolactam and butyrolactam; styrene, a -methyl styrene, chlorostyrenes, and vinyl naphthalene; mono-vinyl acetylene, methyl vinyl ketone, vinyl pyridine, 2-methyl 5-vinyl pyridine, 2-vinylthiophene, vinylpyrrolidone, vinylcarbazole and vinyl methyl, ethyl and isobutyl ethers; butadiene, isoprene, 2-chlorobutadiene, 2-fluoro-butadiene, 2-phenoxybutadiene, methacrylic anhydride, ethylene, di-, tri- and tetra-ethylene glycol dimethacrylates, diethylene and decamethylene glycol diacrylates, glyceryl triacrylate; diallyl maleate, vinyl, allyl, crotyl, and methallyl methacrylates, diallyl phthalate, carbonate, adipate and fumarate, divinyl succinate and adipate and divinyl benzene; maleic anhydride, dimethyl and diethyl fumarates and maleates, allyl chloride and the condensation products of ethylene and propylene oxides with maleic anhydride.  Telomers may be formed from carbon tetrachloride, isobutyric acid and anhydride, methyl propionate, dioxolane, mercaptans, bisulphites, alcohols, ethers, silicon halides and hydrogen chloride.  Preferably pressures of 20,000 to 40,000 lbs./sq. inch absolute are used with or without catalysts such as oxygen.  Normally gaseous monomers such as 1-chloro-1-fluoroethylene, vinyl and vinylidene fluorides, trifluoroethylene and vinyl chloride may be treated in a batch or continuous process with a carrying gas, organic solvent or water. Examples describe the batch polymerization of 1-chloro-1-fluoroethylene alone or with vinyl chloride, using cobalt 60.
Patent GB-342669-A (GB)
Title: Improvements in or relating to pressing machines
IPC: D06F71/36
Filed: 1929-10-03
Abstract: 342,669. Ironing - presses. PROSPERITY CO., Inc., Beattie Street, Syracuse, New York, U.S.A.-(Assignees of Davis, E.; 324, Roosevelt Avenue, Syracuse, New York, U.S.A.) Oct. 3, 1929, No. 30047. Convention date, Dec. 28, 1928. [Class 138 (ii).] One of the pressing members such as the head shown comprises a perforated press plate 1, a sheet metal plate 2 spaced therefrom and secured thereto at its edges and a third plate 6 also of sheet metal and having longitudinal corrugations terminating short of the margins of the plate and communicating with one another at their ends. Steam is circulated from a pipe 8 through the chamber thus formed by the corrugations. A pipe 15 having a manually controlled valve 17 leads from the steam chamber to the chamber formed between the intermediate plate 2 and the perforated press plate, this chamber being filled with copper or other metal wool. A heat insulating plate 9a and a sheet metal cover plate 10 are provided and the head is yieldingly supported on a support 11 on the head lever 12 by spring-encircled bolts 13 secured to the press plate and passing loosely through the support 11 and plates 2, 6.
Patent GB-775591-A (GB)
Title: Improvements in signalling arrangements for telephone systems
IPC: H04Q1/442
Filed: 1954-10-19
Abstract: 775,591. Automatic exchange systems. SKILLMAN & CO. PTY., Ltd., T. S. Oct. 19, 1954 [Oct. 23, 1953], No. 30057/54. Drawings to Specification. Class 40 (4). In an interexchange system in which signalling is effected by V.F. signals or in the case of carrier systems by the carrier frequency itself, and in which there is a possibility of operators' voice currents providing a spurious called party answer signal, arrangements are made either to attenuate the speech signals or reduce the sensitivity of the signal receiver until the called party answer signal is sent. Thus in one arrangement all backward speech passes through an attenuation pad at the distant end, this pad being switched out and a V.F. or carrier frequency signal switched in when the called party answers. In an alternative arrangement the signal receiver at the near end is normally in a condition of low sensitivity and the called party answer signal is arranged to contain an initial burst of high amplitude signal, to which the signal receiver responds, thereby switching itself into a more sensitive condition so that it can remain operated to the succeeding lowamplitude part of the signal. Instead of this arrangement a receiver of the type described in Specification 385,974 may be used, such a receiver responding only to a high-level signal but once operated is maintained in that condition by a low-level signal. Specification 646,500 also is referred to.
Patent GB-533701-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/36
Filed: 1939-11-15
Abstract: 533,701. Vacuum cleaners. ELECTROLUX, Ltd. Nov. 15, 1939, No. 30161. Convention date, Dec. 8, 1938. [Class 8 (i)] The hood 12 forming one end of the casing of an enclosed-bag vacuum cleaner is provided with symmetrical ribs or projections 16 on which the casing may rest in a vertical position, e.g., for emptying the dust bag. The edges of the ribs may be concave so that only their ends rest on the floor. The ribs may be cast on a cover 14 formed with an air outlet 15, or on the end surface outside the cover.
Patent GB-816851-A (GB)
Title: Improvements in refrigerated tanks
Inventor: MOSS ERIC TOM
Filed: 1954-10-20
Abstract: 816,851. Cleaning tanks. DAIRY SUPPLY CO. Ltd. Oct. 20, 1955 [Oct. 20, 1954], No. 30189/54. Class 138(1). Apparatus for receiving milk and from which it is pumped to a tanker comprises a milk chamber 1, a water storage tank 2, a mixing chamber 3 in which solutions of a detergent and of a sterilizer may be prepared, a pump 4, and a system of pipes and valves by whose means water and the solutions may flow into and through the chamber 1, the several parts being so arranged that water may be projected into the chamber to clean it, and by a rearrangement of certain parts a detergent and sterilizer may be admitted into the tank, and by a further rearrangement of parts a further cleansing of the tank by sterile water can occur. An agitator 21 in the tank 1 prevents cream rising in the milk. Parts 5 and 6 contain the detergent and sterilizer respectively.
Patent GB-838017-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/00
Filed: 1956-10-04
Abstract: 838,017. Thermionic valves. STANDARD TELEPHONES & CABLES Ltd. Oct. 4, 1956, No. 30239/56. Class 39(1). A cylindrical grid consists of a plurality of turns of wire 1 extending between end rings 2, 3, a set of thicker support wires 4 spaced round the turns and being secured thereto and to the end rings, and a second set 5 of thicker wires inclined to the first set and also secured between the end rings. The two sets of thicker wires may be bonded to each other at the cross-over points. Suitable dimensions are given for the grid of a triode having a mutual conductance of 60 ma/V. Specification 838,016 is referred to.
Patent GB-1126167-A (GB)
Title: Improvements in or relating to flat hollow flexible containers of rubber or synthetic plastics such as hot water bottles
IPC: B29D22/00
Filed: 1967-06-30
Abstract: 1,126,167. Hot-water bottles. CONTINENTAL GUMMI-WERKE A.G. 30 June, 1967 [23 July, 1966], No. 30275/67. Heading A5X. A hot-water bottle or other hollow article, of rubber or flexible plastics material, is formed on its outer surface with a continuous edge leading 4 which is connected to the remainder of the bottle or article by a thinner web 5, there being on the inner surface of the bottle or article two continuous parallel protuberances 6 which support the edge beading. As shown, the hot-water bottle is also formed on its surface with a pattern 2 and with reinforcing ribs 7, 8, 9 the ribs 7 on one side of the bottle being offset relative to the ribs 7 on the opposite side. A metal ring is bonded inside the filler opening 1 and is threaded so as to receive a liquid-tight stopper.
Patent GB-396585-A (GB)
Title: Improvements relating to colour photography
IPC: G03C7/20
Filed: 1932-10-28
Abstract: 396,585. Colour photography. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Oct. 28, 1932, No. 30290. Convention date, Nov. 25, 1931. [Class 98 (ii).] A tripack of the kind described in Specification 389,341, which comprises a front support carrying a blue-sensitive layer, an intermediate support carrying on its front surface a greensensitive layer coated with a yellow filter layer and on its rear surface a red filter layer, and a rear support carrying a panchromatic emulsion, is provided with an additional yellow filter layer on the blue-sensitive emulsion in order to flatten the gradation of the blue record image, and yield images of the same gradation on all three emulsion layers. The two yellow filters together absorb all blue rays.