baber/WOPTO huggingface dataset:
Patent GB-735740-A (GB)
Title: Improvements in the production of aliphatic aldehydes with 3 to 5 carbon atoms in the molecule
IPC: C07C45/50
Filed: 1953-04-29
Abstract: Saturated aliphatic aldehydes with 3 to 5 carbon atoms in the molecule are made by reacting olefinic hydrocarbons containing 2 to 4 carbon atoms in the molecule at raised temperatures and pressures with CO and H2 in the presence of aqueous cobalt salt solutions, the salt solution and liquid reaction products flowing upwardly through a vertical high pressure tube at 150-200 DEG  C. and a pressure of at least about 200, preferably 300-700, atmospheres while continuously feeding aqueous cobalt salt solution at the bottom and withdrawing reaction mixture at the top of the tube, introducing the olefine and an excess of CO and H2 at the bottom of the tube and correlating the amount of cobalt salt solution, reaction temperature and pressure in such a manner that the liquid flowing through the tube constitutes a homogeneous mixture.  The product leaving the reaction vessel is cooled, e.g. to 20 DEG  C., released to about normal pressure, heated to at least 50 DEG  C., preferably from 80-200 DEG  C., eventually under pressure, and led, if desired with additional water, upwardly through a vertical vessel.  Expulsion of CO may be effected by passing H2, N2 or CO2 through the solution. After about 10-60 minutes the product is free of cobalt compounds and on cooling an organic layer containing aldehydes separates from an aqueous cobalt layer which may be reused as catalyst. Catalysts are preferably salts of low molecular weight fatty acids particularly acetic and propionic acids.  The aqueous catalyst solution may be acidified or buffered. In examples butyraldehyde and proprionaldehyde are obtained from propylene and ethylene respectively.  Specification 631,316 is referred to.
Patent GB-1429126-A (GB)
Title: Lighter employing electric spark ignition-
IPC: F23Q2/28
Filed: 1974-03-18
Abstract: 1429126 Lighters BICOSA SOC DE RECHERCHES 18 March 1974 [10 April 1973] 12002/74 Heading F4F A lighter comprises an electric spark ignition 10, Fig. 1, a holder 15 for an electric cell 8, a voltage-raising circuit 9, a switch 11 closable by a control member 12 to connect circuit 9 to cell 8, the cell holder, circuit 9, switch 11, and electrode 10, being disposed on a plate 13, connected with a gas outlet valve 5 feeding a burner 6, the plate being movable between two fixed structures 1, 2, and the control member being operable to close the switch and move the plate to open the valve. The reservoir 1 for liquefied gas has a filling valve 3, and the gas output to valve 5 can be varied by a device 4. Circuit 9 comprises an integrated circuit 19  which supports an inductance coil 20, a capacitor 22 a transformer 24 and an electrode 10, all of which are electrically secured to a printed circuit 14 carried by plate 13. In operation, member 12 is depressed to firstly flex a terminal 17 to close switch 11, and then to pivot plate 13 about a pivot 1a, to cause valve 5 to rise and open. In a modification, control member 12 is slidable in the direction (G), Fig. 2 (not shown). In a further modification, member 12, Fig. 3, forces plate upwardly until switch 11 is closed by a projection 2a and further movement lifts valve 5. In another modification, control  member 12 is moved in the direction J, Fig. 4,  so that terminal 17 of the switch is firstly actuated to close the latter by a projection 2b, and then the valve is lifted by a projection 13e on the plate.
Patent GB-1041682-A (GB)
Title: Traffic light control system
IPC: G08G1/081
Filed: 1965-03-22
Abstract: 1,041,682. Road signals for controlling traffic. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 22, 1965 [April 28, 1964], No. 12003/65. Heading G4Q. Traffic lights 11a-11c, Fig. 1 (not shown), at different junctions are advanced by respective stepper-switches 25a-25c which receive advance signals from buffer controllers 13a-13c which control the lengths of the phases in response to instructions received from a central processor 15. Each buffer controller, Fig. 2 (not shown), comprises three six-stage binary registers 31-33 which are set in accordance with the required phase lengths by signals from the central processor. At each phase the content of the respective register is fed to a counter 57 which is counted down from its setting by clock pulses, which may be supplied from the central processor. When the counter reaches zero an advance signal is sent to the stepper switch and the register for the next phase is connected to the counter. A three-stage ring circuit 65 determines which register is connected to the counter, and its three stages are connected to three AND gates 71 which are supplied with inputs from the respective traffic lights according to the actual phase of the lights. If the actual phase differs from the required phase a circuit 73 connected to gates 71 supplies no output, and this null output is inverted to supply an output which advances the traffic lights. The buffer controllers may be offset from each other by delaying the initial clock pulses supplied by the central processor. A counter 57<1> is set to the required offset and counted down by the clock pulses-when the counter reaches zero an AND gate 69 is opened to allow the clock pulses to pass to counter 57.
Patent GB-566545-A (GB)
Title: Improvements in or relating to staircases
IPC: E04F11/025
Filed: 1943-07-23
Abstract: 566,545. Stairs. UNIVERSAL ASBESTOS MANUFACTURING CO., Ltd., and RICHARDSON, R. A. July 23, 1943, No. 12042. [Class 20 (iv)] A staircase comprising steps, soffit, and stringers, is made of asbestos cement, the stringers and soffit being in the form of a tray B in one piece or with a lap joint as shown in Fig. 3, and the steps in units of one or more are bolted to the trays. Units comprising single steps are formed with flanges C, Fig. 3, which are bolted to the stringers, and units comprising a number of steps are bolted to the soffit through an inclined part between a tread and riser, as shown at F, Fig. 4. Where the steps meet, the tread overlaps the riser of the next lower step, as shown at a<1>, Fig. 3, or b<1>, Fig. 4.
Patent GB-289406-A (GB)
Title: Sound cones for loud speakers
IPC: H04R7/12
Filed: 1928-04-25
Abstract: 289,406. Rheinische Holzwerke Ges. Aug. 1, 1927, [Convention date]. Diaphragms; loud-speakers; magnetic instruments. - The conical diaphragm c of a loudspeaker is formed with two or more apices b, all connected to a common magnetic membrane or tongue e actuated by a single magnet f or each connected to a separate membrane or tongue, each of which is adapted to be actuated by a corresponding magnet. With the latter arrangement, switching means is provided so that the magnets can be employed individually or simultaneously. The cone is built up of two or more pieces corresponding to the number of points b, the pieces being either of different material or of the same material treated with a substance, such as lac, so as to produce different tone qualities. The cone may have a circular or oval rim or a rim made up of curved pieces.
Patent GB-786768-A (GB)
Title: Aqueous zinc-tin alloy electroplating bath
IPC: C25D3/56
Filed: 1955-04-27
Abstract: 786,768. Electrodepositing zinc-tin alloys. SYLVANIA ELECTRIC PRODUCTS, Inc. April 27, 1955 [April 27, 1954], No. 12202/55. Class 41. An aqueous zinc-tin alloy cyanide electroplating bath contains 5 to 50 gms./litre zinc, 15 to 75 gms./litre tin, and cyanide and hydroxide ion sufficient to complex all of the zinc, the cyanide ion being present in an amount less than that required to complex all the zinc as Zn(CN) 4 =. If sodium salts are used, the total sodium cyanide content is less than three times the zinc metal content and the total sodium hydroxide content is not less than 2.44 times the difference between the zinc content and <SP>1</SP>/ 3  the total sodium cyanide content. If potassium salts are used, the total potassium cyanide content is less than four times the zinc metal content and the total potassium hydroxide content is not less than 3.43 times the difference between the zinc content and  the total potassium cyanide content. By using such baths, typically at 65 C., a zinc-tin alloy plating containing over 87 per cent zinc may be produced, the cathode current density being 5 to 40 amps./sq. ft. for sodium salt baths and 20 to 100 amps./sq. ft. for potassium salt baths.
Patent GB-163983-A (GB)
Title: Copy carrier for writing machines, adding machines and the like
IPC: B41J29/15
Filed: 1921-04-28
Abstract: 163,983. Droz, L. F. Amez-. May 28, 1920, [Convention date], Desk slopes.-A copy-holder for typewriters and like machines comprises a supporting-member, held in position between the base of the machine and its support, and an arm pivoted on the supporting member and carrying an adjustable copycarrying device. The supporting-member a, Fig. 1, consists of a metal bracket one side of which is inserted under the foot b of the machine, and the other side carries a vertical socket e in which one end f<1> of an arm f is revolubly mounted. In the other end f<3> of the arm f is slidably and revolubly mounted a socket g<3> integral with an arm g<1> cut from the copy-carrying device g, the bottom edge of which is bent up to form a flange g<4>. The socket g<3> is secured at the desired height on the end of the arm f by a clamp h arranged beneath the socket y<3>. The Specification as open to inspection under Sect. 91 (3, (a) describes the modified form of copy-holder shown in Fig. 1 (Cancelled), in which the clamp &c. is provided with a set-screw h. This subject-matter does not appear in the Specification as accepted.
Patent GB-458650-A (GB)
Title: Improvements relating to folding formers and turning bars for rotary printing presses
IPC: C09B35/14
Filed: 1936-04-30
Abstract: 458,650. Printing-machines. SCHNELLPRESSENFABRIK KOENIG & BAUER AKT.-GES., W³rzburg, Germany. April 30, 1936, No. 12278. Convention date, April 30, 1935. Drawings to Specification. [Classes 100 (i) and 100 (ii)] In a rotary web-printing press, the turning- bars or folding formers are cooled to below press room temperature and preferably to below 0‹ C., in order that the heat generated by the friction between the webs and the bars or formers shall not cause offset due to the softening of the ink. Moisture condensed on the bars or formers due to the cooling assists the prevention of offset. The cooling is effected by a circulating salt solution passing through a refrigerator and through cavities in the former or within the bars.
Patent GB-208476-A (GB)
Title: A device or appliance for use with the headphones of wireless telephone sets, and with the receivers of ordinary telephones
IPC: H04R1/10
Filed: 1923-05-08
Abstract: 208,476. Cattell, J. S. May 8, 1923. Earpieces and attachments.-A device for use with telephone receivers comprises a rubber cup with an outer part a to fit round the ear of the user and a part b of smaller diameter so shaped as to be fitted on and grip the rounded portion or bead of the telephone receiver. Specifications 7729/90, [Class 119, Small arms], and 133,982 are referred to.
Patent GB-348847-A (GB)
Title: Improvement in method of making jellies and the like
IPC: A23L29/231
Filed: 1930-04-22
Abstract: A dry preparation for making a jelly or jam by addition of water or fruit juices followed by heating and cooling of the solution consists of a mixture of pectin, sugar and an organic acid having a lower rate of solution in cold water than pectin, for example mucic acid. Specification 331,295, [Class 49, Food &c.], is referred to.
Patent GB-1065802-A (GB)
Title: An electromagnetic retaining device for a moving coil
Inventor: SALTER ALBERT GEORGE
IPC: G01R1/02
Filed: 1965-03-23
Abstract: 1,065,802. Electric meters; indicating apparatus. K.G.M. ELECTRONICS Ltd. March 23, 1966 [March 23, 1965], No. 12342/65. Headings G1J and G1Q. [Also in Division H2] The castellated poles 11 and 11 of the electromagnet 4 provide regions of alternately weak and strong magnetic field along the path of motion of a magnetizable member 3 attached to the movement of a moving coil meter. With the magnet de-energized the coil 1 is free to take up any deflected position, but when the magnet is energized the coil is further deflected to, and held in, the nearest position in which the member 3 lies in one of the strong field regions and this is made to correspond to an integral indication of the indicating system shown. In Fig. 2 (not shown) the electromagnet 4 is replaced by a permanent magnet whose effect can be overcome by an opposing coil which is energized to release the movement. In Fig. 3 (not shown) the meter coil has a torsional suspension and the member 3 is replaced by a castellated disc fitted on, and coaxial with, the suspension for rotation between coplanar arcuate castellated poles of the holding magnet.
Patent GB-201256-A (GB)
Title: Improvements in automatic telephone switches
IPC: H01H63/24
Filed: 1922-05-02
Abstract: 201,256. Western Electric Co., Ltd., and Deakin, G. May 2,1922. Securing toothed wheels on shafts.-In driving- gears for automatic telephone selecting-switches, the member driving or carrying the brushes is flexible and is adapted to be warped or sprung out of engagement with a toothed driving-member. To facilitate assembly, the driving-wheel 6 is in two parts, clamped between a disc 19 and the disc 9 and held together by pins 20, and is mounted on a sleeve secured to the driving-shaft 7. When it is desired to disconnect the wheels 5, 6 for test purposes &c., the wheel 6 may be slidden axially against a spring 18 to withdraw studs 21 from holes in a shoulder 16 of the sleeve and can then be turned so that the studs rest on the face of the shoulder. In a modification, Fig. 3, bevel gearing is employed.
Patent GB-559818-A (GB)
Title: Improvements in or relating to the hardening or insolubilisation of artificial filaments obtained from protein solutions
IPC: D01F4/00
Filed: 1942-09-02
Abstract: 559,818. Artificial filaments. McLEAN, A., SWIFT, S. R., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 2, 1942, No. 12377. [Class 2 (ii)] A solution of a protein, e.g. casein or a vegetable globulin, is extruded into a coagulating medium, and the filaments so produced are washed in a solution containing an anti-swelling agent for the protein, then treated with a solution containing an anti-swelling agent together with urea, thiourea, biuret, or like bifunctional amide, and thereafter are treated under acid conditions, and while they are still impregnated with the amide solution, with a hardening aldehyde capable of reacting with the amide in the presence of acid to produce an insoluble condensation product. The antiswelling agent may be a concentrated salt solution, or a strong solution of alcohol, glycerol, or other organic dehydrating agent. Preferably a saturated sodium chloride solution is used. Sodium sulphate or other inorganic salt solutions, e.g. alkaline earth, metal halide solutions may be used. The aldehyde may be formaldehyde, a formaldehyde polymer, or acrolein. In an example, staple fibres are obtained by a continuous process from a solution of ground nut protein by extruding the alkaline solution into an aqueous sodium sulphate solution acidified with sulphuric acid, stretching the filaments as they are produced, subjecting the advancing coagulated filaments, while their length is maintained, to washing in concentrated sodium chloride solution, and then cutting the filaments into staple fibres. The fibres are placed in a solution containing urea and salt and allowed to steep for several hours. The fibres are removed and most of the adhering liquor is drained off. They are then immersed in a warm solution of sodium chloride, formaldehyde and hydrochloric acid, for several hours. The fibres are then removed, washed, and dried. Specification 543,586 is referred to.
Patent GB-1019556-A (GB)
Title: Improvements in or relating to head gear
Inventor: JONES LIONEL GEORGE
IPC: A42B1/22
Filed: 1962-03-31
Abstract: 1,019,556. Caps. M. S. MICHAEL & CO. Ltd. Jan. 31, 1963 [March 31, 1962], No. 12485/62. Heading A3V. Head gear comprises a head band having at least two parts each having a textile fabric piece thereon which pieces possess mutually engaging characteristics to enable the parts of the head band to be releasably secured to each other for adjustment. A peak cap has a head band 2 with tab pieces 3 each having a piece 5 of textile fabric which engages with a similar piece of fabric on the part 4 of the cap adjustably to hold the tab pieces together. The textile fabric may comprise raised loop material.
Patent GB-1419224-A (GB)
Title: Colouring anodically oxidized aluminium
IPC: C25D11/22
Filed: 1974-03-20
Abstract: 1419224 Electrolytic colouring of anodized Al or Al alloy SUMITOMO CHEMICAL CO Ltd 20 March 1974 [20 March 1973 22 Nov 1973] 12485/74 Heading C7B Aluminium or aluminium alloy is anodized in a sulphuric acid electrolyte or in an aromatic sulphonic acid electrolyte, e.g. sulphosalicylic acid or sulphothalic acid, containing sulphuric acid; and is thereafter cathodically coloured in an aqueous solution of a nickel salt e.g. of NiSO 4 , NiCl or Ni acetate, which solution contains less than 12 ppm sodium ion. The colouring bath may also contain boric acid, H 2 SO 4 , an organic acid or NH<SP>+</SP> salt, or, to modify the colour produced, a sulphate or chloride of Sn, Co and/or Cu. A nickel anode may be used for colouring. The sodium content of the bath may be lowered by passage of the bath through a column of strongly acidic Ni-type cation-exchange resin.
Patent GB-604667-A (GB)
Title: Improvements in the manufacture of hermetically sealed envelopes having metallic parts
IPC: B23K35/30
Filed: 1944-06-30
Abstract: 604,667. Making electric discharge devices. M-O VALVE CO., Ltd., and HARRIS, N. L. June 30, 1944, No. 12537. [Classes 83 (ii) and 83 (iv)] Soldering.-An envelope formed in part from two metallic portions united by a gold seal, particularly an envelope for an electric discharge device, is made by assembling the parts in a clamping jig which nips a ring of gold wire between two annular junction faces on the parts, and then baking in an atmosphere of nitrogen at a temperature high enough to effect a permanent seal due to partial amalgamation of the gold ring with the junction faces. The parts may be made from high-conductivity copper or from copper-tellurium alloy. The nitrogen may be of the commercial kind containing an oxygen impurity to cause a slight film of oxide on the copper to give a bronze finish. Flanged copper pressings 13 fused to glass electrical windows 12 are placed with intervening gold wire rings 17 against annular faces 18 on the body 10 of the electric discharge device and held by hollow steel plungers 19 and screw 21 in a steel clamp 20, which is placed with a sheet metal bell 22 accommodated within an oven 24. The heating is effected by an eddy current coil within the bell. The part 26 in the body 10 is connected to an evacuating system and nitrogen is admitted to the interior of the bell through a pipe 23 and displaced air escapes through a port 27.
Patent GB-487278-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04D5/00
Filed: 1937-05-03
Abstract: 487,278. Centrifugal pumps. NORTHEY, A. J. May 3,1937, No. 12549. [Class 110 (i)] The pump comprises a vaned rotor b, and inlet and outlet ports d interconnected by a passage f of convergent - divergent or Venturi-like formation. The ports d may be wellspaced apart.
Patent GB-137553-A (GB)
Title: Improvements in electrolytic apparatus
IPC: C25B9/17
Filed: 1918-08-01
Abstract: 137,553. Benjamin, E. O. Aug. 1, 1917, [Convention date]. Cells; diaphragms; supporting electrodes; connexions; electrolytes, circulating. - Apparatus suitable for generating oxygen and hydrogen consists of a flat closed cell having two walls insulated and serving as electrodes; the intermediate frame supports a diaphragm and is provided with gas and liquid passages and a reservoir for keepmg the electrolyte level above the electrodes and diaphragm. In the construction shown, iron electrodes 3 are secured by insulated screws to a castiron frame 1, insulating-packing being interposed. At opposite edges of each plate 3 are two tianges 2 for attachment to a conductor or to the flanges of an adjacent cell, the flanges being offset or spaced by conductive bars. A diaphragm 8 of asbestos, wire-gauze, &c. is attached to an internal flange on the frame by a clamping-frame 9 and screws. Interchange of electrolyte between the compartments, due to change of concentration, is permitted by a passage 13 in the base of the cast frame, opening at each end of the base into one of the compartments and sloping upwards each way from a central baffle 17 to prevent transfer of gas. A plug 61 closes an outlet to which an elbow-pipe can be fitted for emptying the cell. Communication between the upper ends of the compartments is afforded by passages 20 provided with gas baffles 21 and leading to opposite sides of a partial partition 22 within a reservoir 18. Also moulded in the frame 1 are gas chambers 24, 26 each having an inlet 23 or 27 for gas and electrolyte, and a port 25 or 28 for the return of the separated liquid. From the chambers, the gases pass up pipes 29 and under bells 32 attached thereto. The bells may be situated within glass vessels 35 held by clamping-rings and packing. A passage through the frame leads from the space below each bell to a safety gas-outlet vessel 36, the passages entering this separately in an upward direction to prevent transfer of the gases. An unduly low electrolyte level is indicated by escape of gas. Another passage runs from one gaswasher to a stand-pipe 37, within which is an overflow pipe 38 returning excess of liquid from the washers to the reservoir 18. The glass vessels are shielded at one end by the stand-pipe 37, and at the other end by a post 90. Three insulators supporting the cell each consist of a glass or like cup 51 in which is cemented an iron stud 52 attached to the frame 1 and having an overhanging flange 55 to protect the glass from the alkaline or other electrolyte. A ring bolt is provided at the top of the frame 1.
Patent GB-1190883-A (GB)
Title: A Magnetic Recording Member having a Light-Sensitive Layer
Inventor: SEIDEL BERNHARD
IPC: G03F7/09
Filed: 1968-03-15
Abstract: 1,190,883. Acoustic- and optical-recording laminates. AGFA-GEVAERT A.G. 15 March, 1968 [15 March, 1967], No. 12655/68. Heading B5N. [Also in Divisions G2 and H1] A member, in sheet, tape, plate or like form, capable of recording both acoustic and optical information comprises a support laminated or coated with a magnetizable layer on one side and with a layer on the other side of a polymer capable of being cross-linked and rendered insoluble by light, the layers being of the same width and extending across the entire width or a large proportion of the width of the support. Various plastics and other materials such as metals and glass are proposed for the support, and the magnetizable layer may be of various ferromagnetic metals or alloys or of dispersions of such materials in a binder. The photocrosslinkable material may be a polymer or copolymer of vinyl alcohol, a copolymer of styrene containing hydroxyl groups, or cyclorubber, containing cinnamic acid ester groups, azido or sulphazido groups. The support, or a layer between the support and either the photosensitive or the magnetizable layer, may be pigmented, e.g. with titanium dioxide.
Patent GB-329791-A (GB)
Title: Improvement in electric ceiling roses
IPC: F21V21/02
Filed: 1929-04-24
Abstract: 329,791. Nettl, R. April 24, 1929. Ceiling-roses; strain-taking devices for flexible leads. - In a ceiling-rose, the flexible lead is gripped between a projection E on the terminal block D and a bulge L on the cover B which is secured to the ceiling. The block D rests loosely in the cover B, and the projection E may have grooved or flattened parts to accommodate the leads.