baber/WOPTO huggingface dataset:
Patent GB-522617-A (GB)
Title: Improved method of constructing tunnels
IPC: E21D11/15
Filed: 1938-12-17
Abstract: 522,617. Tunnels. TOD, A. H. Dec. 17, 1938, No. 36817. [Class 85] Tunnel linings are formed of a longitudinal series A, B, C, D &c. of arches or rings each consisting of a series of flanged and webbed segments 10 of T-section, secured at their ends as by bolts 11 passed through end flanges 13, and interposing slabs 14 of concrete &c. between the webs of adjacent arches &c. the ringed or arched structure being lined with poured concrete or brickwork 17. The slabs 14 may be supported by pins 15 inserted in holes in the webs; the holes also serve to receive rods to support segments in course of erection.
Patent GB-1114598-A (GB)
Title: Improvements in and relating to methods of measuring carrier concentration in semiconductors
Inventor: DOUGALL NEIL GUTHRIE
IPC: G01R31/28
Filed: 1965-08-27
Abstract: 1,114,598. Measuring semi-conductor carrier concentration. ASSOCIATED SEMI-CONDUCTOR MANUFACTURERS Ltd. Aug. 12, 1966[Aug. 27, 1965], No. 36904/65. Heading G1U. In a non destructive method of measuring carrier concentration in a semi-conductor body which is p type at a lower temperature and n type at a higher, the body is cooled and/or heated through a temperature range where the thermoelectric effect changes sign. The temperature at which this sign change occurs is detected and uniquely indicates the carrier concentration. To carry out the method slice 8 of e.g. indium antimonide is clamped on the flat top of a vertical copper rod 4 and is heated and cooled by raising and lowering the rod relative to a liquid nitrogen refrigerant 2 in a flask 1. The temperature at the end surface is measured by a thermocouple 7 and the sign of the thermoelectric effect is monitored by deriving an output across a probe 11 and a clamping spring 9 secured to the rod 4, the probe being at the higher temperature of its holder 12.
Patent GB-822218-A (GB)
Title: Improvements in or relating to co-ordinate switching equipment
Inventor: BEZDEL WINCENTY
IPC: H01H67/26
Filed: 1957-11-27
Abstract: 822,218. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Nov. 27, 1957, No. 36974/57. Class 40 (4). Co-ordinate equipment comprises an array of electrical devices through which current can flow in either direction, a device being operated by current flow in the one direction and held by current flow in the reverse direction. First embodiment, Fig. 1. Operation of a row operating device, say ROD2, and a column operating device, say COD2, energizes the windings 1 and 2 of a relay R5 which closes its contacts 3, energization of a single winding not being sufficient to operate the other relays in the associated row and column. A column hold device CHD2 is then operated to pass reverse current through the windings 2 of the associated column. This is sufficient to hold the operated relay R5 and to prevent operation of any of the other relays in that column. Release is effected when CHD2 is restored by an input on its release terminal. Two relays in the same row can be operated because the release time is longer than the operate time. Modification, Fig. 4. The two windings may be replaced by one 42. The column circuits are unearthed and the row circuits connected to earth through a resistance 45. Reed relays may be used. Second embodiment, Fig. 2. The relays of Fig. 1 are replaced by reversible gas discharge tubes or by a pair of normal diodes connected anode to cathode in parallel. The tubes may carry speech. A positive pulse on one of the row operating devices, say ROD1, and a negative pulse on one of the column operating devices, say COD1, fires the related tube D1. The pulses are followed by a positive potential from column hold device CHD1 which maintains D1 fired but in the reverse direction. Since the release time is less than the firing time two tubes in one row or one column can be fired. Consequently each row can store a number in binary form. In a modification, Fig. 3, a resistance 31 in series with a tube develops a potential for operating other devices.
Patent GB-1467577-A (GB)
Title: Evaporators
IPC: C02F11/13
Filed: 1975-09-10
Abstract: 1467577 Apparatus for evaporating liquid from solids SALA INNOVATION AB 10 Sept 1975 [28 April 1975] 37170/75 Heading B1B [Also in Division F4]  An apparatus for evaporating liquid from a sludge to form a solid residue comprises a drum 10 which is rotatable about its longitudinal-axis, means 13 for supplying sludge to the interior wall 12 of the drum heating means, e.g. electric heaters 15, and means, e.g. a blade 14 for removing solid residue 17 from the wall 12, the drum tapering from the wider open end to the closed, narrow end 33, and being so mounted in use that the lower portion of the wall 12 slopes downwardly and the upper portion upwardly towards the open end. The drum is frusto-conical, and the angle α may lie in the range 10 to 45. The heaters 15 may be mounted on a shield 37 extending across the mouth of the drum, the shield being double-walled. Sludge is pumped at 26 from a container 24 to the drum at 13 and vapours are removed at 19, 20.
Patent GB-778753-A (GB)
Title: Conversion of retinene-phenolic material complexes to vitamin a
IPC: A61K31/59
Filed: 1955-12-29
Abstract: Vitamin A is obtained from a Vitamin A precursor having substantial stability by admixing a complex consisting of retinene and a phenolic material with a sodium or potassium borohydride in a liquid carrier substantially inert to said borohydride, and thereafter hydrolysing the resulting reaction product.  As phenolic materials there may be used hydroquinone, 2-methylhydroquinone, 2 - ethylhydroquinone, 2 - t - amylhydroquinone, 2 - chlorohydroquinone, 2 - bromohydroquinone, 2,5 - dimethylhydroquinone, 2,5 - diethylhydroquinone, 2,5 - di - t - amylhydroquinone, 2,5 - dichlorohydroquinone, 4 - methoxyphenol, 2-methyl - 4 - methoxyphenol, 4 - dimethylaminophenol, 4 - diethylaminophenol, 2 - methyl - 4-dimethylaminophenol, phenol, 3 - methylphenol, 3 - ethylphenol, 3 - octylphenol, 3-chlorophenol, resorcinol, 4 - methylphenol, 4-butylphenol, 4 - bromophenol, a  - naphthol, b -naphthol, phenylhydroquinone, 3,4 - dimethylphenol, 3,4 - dibutylphenol, 3 - methyl - 4-bromophenol, 3 - amyl - 4 - chlorophenol, sesamol, 2,21 - isobutylidene - bis - (4 - methoxyphenol), 2,21 - methylene - bis - (4 - butoxyphenol), 2,21 - octylidene - bis - (4 - ethoxyphenol), 2,21 - isobutylidene - bis - (hydroquinone), 2,21 - octylidene - bis - (hydroqiunone), 3 - hydroxy - 4 - chlorophenol and 3-hydroxy - 4 - bromophenol.  As borohydrides there may be used sodium borohydride, potassium borohydride, sodium diethylborohydride, sodium trimethoxyborohydride, potassium triphenylborohydride and sodium trifluoroborohydride.  As liquid carriers there may be used methanol, ethanol, butanol or aqueous mixtures thereof, petroleum ether, dioxane, methylamine, diethylamine, pyridine, benzene and toluene.  Glycerine may be added as a solubilizing agent.  Examples disclose the production of Vitamin A from complexes of retinene with hydroquinone and 2,5 - di - t - amylhydroquinone.  Specifications 728,989 and 728,990 are referred to.
Patent GB-875334-A (GB)
Title: Improvements in or relating to vibrators
IPC: B06B1/18
Filed: 1959-11-03
Abstract: 875,334. Vibratory mechanisms. FONTAINE, M. A. 1. Nov. 3, 1959 [Nov. 7, 1958], No. 37215/59. Class 80 (4). In a rotary vibrator comprising a cylinder 2 which is rolled around the inside of a larger fixed cylinder 1 by pressure fluid, the cylinder 2 having a longitudinal slot housing a movable paddle 5 dividing the space between the cylinders into two chambers 6, 7 communicating respectively with inlet and outlet passages, the cylinder 2 is extended beyond the cylinder 1 by large diameter masses 3, 4 in order to increase the weight of the gyrating mass without increasing the volume of the fluid working space, and hence without increasing the consumption of fluid. The inner end faces of masses 3, 4 engage the outer faces of fixed cylinder 1. The outer end face of mass 3 is in sealed sliding contact with a fixed flange 9 and has an axial conduit 10 always communicating with a larger diameter fluid inlet conduit 11. The conduit 10 communicates with the chamber 6 through holes 14. Fluid is exhausted to an outlet pipe 19 through recesses 16 and holes 15 in the inner end faces of the masses 3, 4, and through holes 17 in the cylinder 1, the recesses 16 being alternately covered and uncovered by the end faces of the cylinder 1 as the cylinder 2 gyrates. Speciflcations 688,257 and 760,570 are referred to.
Patent GB-1176369-A (GB)
Title: Improvements in or relating to Link Chain Components
IPC: F16G13/06
Filed: 1967-08-14
Abstract: 1,176,369. Chains. HONDA GIKEN KOGYO K.K. 14 Aug., 1967 [18 Aug., 1966], No. 37337/67. Heading F2Q. A link chain pin-link member comprises a link plate 2 having in one end portion of larger width than the remainder of the link plate a pin opening 3 formed therethrough, and at its other end portion a bush 9 projecting integrally from one side surface of the plate normally of this surface. Two such links are assembled by caulking the ends 4a of pins 4 to form pin-link units 5, Fig. 5, arranged alternately with bush-link units 10 as described in Specification 1,176,370.
Patent GB-884043-A (GB)
Title: New colouration process for textile materials
Inventor: BENNETT GEORGE ARTHUR
IPC: D06P3/66
Filed: 1959-11-05
Abstract: Textile materials are impregnated with a resinforming composition, known from the literature or used in practice for the production of creaseresistant or shrinkproof finishes or a modified handle on textiles, together with an acid catalyst, then dried, then printed with a dyestuff containing a reactive halogen atom or other group capable of reacting with the fibre or resin, optionally dried, and finally baked to fix the dye and the resin on the fibre.  Examples are given.
Patent GB-1398726-A (GB)
Title: Tuyeres
IPC: C21C5/48
Filed: 1972-08-11
Abstract: 1398726 Protecting tuyeres CREUSOTLOIRE and E SPRUNCK 11 Aug 1972 [21 Sept 1971] 37605/72 Heading F4B A tuyere in a metallurgical converter is protected by feeding a carbon containing material in viscous, pasty or compressed powder form to a supplementary conduit of the tuyere. The carbonaceous material may be a grease, pitch or tar, a heavy fuel oil, powdered coke or a suspension of powdered carbon in fuel oil, or a solution of paraffin wax, pitch or petroleum coke in fuel oil. The protective material may be a mixture of tar and powdered refracting lining material. The supplementary conduit or conduits preferably surrounds the main blowing passage, and an intermediate conduit may feed air, a neutral gas, steam or water between a stream of oxygen from the main passage and the stream of protective material. The feed of protective material is under sufficient pressure to enable it to be regulated to counteract wear on the tuyere or blockage of the blowing conduit.
Patent GB-1025438-A (GB)
Title: Process for producing alkylcyclohexanols
Filed: 1964-09-15
Abstract: A process for producing alkylcyclohexanols in which an alkylphenol, e.g. 2,3- or 4-alkylphenol or 2,3- or 2,4-dialkylphenol, having at least 10 carbon atoms per molecule is contacted in a reaction zone with a hydrogenation catalyst at a temperature between about 150 DEG and 200 DEG  C. under a partial pressure of hydrogen between 200 and 3000 p.s.i.g., comprises effecting the contacting step in the presence of an amount of hydrogenated petroleum ether, e.g. commercial normal heptane or isoheptane, which improves the catalyst life, suppresses the formation of the undesired by-products and permits recovery of alkylcyclohexanols from the reaction mixture. The petroleum ether may be a mixture of aliphatic hydrocarbons boiling from 20 DEG  to 110 DEG  C. used in an amount of 25 to 60% based on the weight of alkylphenol.  Petroleum ether recovered from the process may be reused. In an example, commercial 4-nonylphenol, hydrogenated commercial heptane as solvent and nickel catalyst were mixed and hydrogenated at 175 DEG  C. and 1600 p.s.i.g. to yield nonylcyclohexanol.  Other examples are given.
Patent GB-1073146-A (GB)
Title: Improvements in or relating to apparatus for controlling the twist in a yarn
IPC: D02G1/12
Filed: 1964-09-16
Abstract: A process, for controlling the amount of twist in a yarn per unit length as the yarn is fed continuously to an apparatus-for example a friction guide, tensioning device, or a pair of nip rolls, used in stuffer box, edge, or gear crimping, or in twisting, plying, winding, warping, sizing or knitting-having a tendency to back up the twist and periodically to allow the backed-up twist to surge through the apparatus, consists of passing the yarn to the apparatus along a path composed of a plurality of arcuate portions formed by a plurality of spaced rotatable rollers, the furthermost down-stream roller being located closely adjacent to the apparatus.  The process is specially described with respect to stuffer box crimping.  The rollers-two in numberare adjustably mounted on a carriage which also supports a yarn guide which is positioned just upstream of the nip of the rolls of the stuffer box.
Patent GB-1273791-A (GB)
Title: Method of manufacturing support cards for wired electronic circuit cards
IPC: H05K1/02
Filed: 1969-07-28
Abstract: 1,273,791. Component assemblies. COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS C.I.T. ALCATEL. 28 July, 1969 [2 Aug., 1968], No. 37846/69. Heading H1R. A method of manufacturing plug-in support cards for wired electronic circuits having the circuit elements disposed on one face card and the circuit wiring on the other, comprises drawing the positions of the wires, components and terminals full size on a transparent label, duplicating the drawn label, sticking one label drawn-side up on one face of the card and the other label drawn-side down on the other face such that the drawings align point for point through the board, perforating the board at terminal positions and inserting eyelets for terminals to which the wires and circuit elements are soldered. The drawings can include the positions and values or identification marks of the circuit elements and can be drawn on paper and reproduced as necessary for cards to be similarly manufactured. Such cards may be connected together in slideways to form composite circuits.
Patent GB-1136268-A (GB)
Title: Improvements relating to wheel axle suspensions
IPC: B61F5/30
Filed: 1966-08-24
Abstract: 1,136,268. Axle-box guides. LINKE-HOFMANN - BUSCHWAGGON - FAHRZEUGMASCHINEN G.m.b.H. 24 Aug., 1966 [26 Aug., 1965], No. 37867/66. Heading B7L. A vehicle or bogie comprises a frame 4, an axle box 1 provided with arms 2, 2a extending fore and aft in the longitudinal direction of the frame and staggered in the vertical direction; tapered spigots 3, 3a on the arms 2, 2a; and annular rubber bodies 6, 6a disposed between the spigots 3, 3a and truncated-conical housings 5, 5a secured to the frame. The horizontal central planes of the bodies 6, 6a are disposed at equal intervals above and below the horizontal central plane of the axle box.
Patent GB-950326-A (GB)
Title: Improvements in clips
Inventor: NICHOLSON WILLIAM HUGH
IPC: F16B39/10
Filed: 1960-11-03
Abstract: 950,326. Locking nuts and bolts; circlips. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 23, 1961 [Nov. 3, 1960], No. 37899/60. Heading F2H. To prevent axial movement between a coupled male member 4 and a female member 1, a clip 7 is snapped into a peripheral groove between projections 5, 6 providing opposed abutments on the male member, while an extension 8 of the clip, which may be in the form of a similar circlip, fits between opposed abutments on the female member. As shown the extension 8 is of T-form and fits in a complementary slot 3 in the wall of member 1. An extension 10 of the slot facilitates insertion of a tool to remove the clip.
Patent GB-960597-A (GB)
Title: Process for the production of n-chloroalkyl-2-oxazolidones
IPC: C07D263/22
Filed: 1962-10-08
Abstract: N-Chloroalkyl-2-oxazolidones of formula <FORM:0960597/C1/1> where R1 is a chlorine-containing C2- 10 alkyl radical and R2 is hydrogen or C1-8 alkyl which may be substituted by chlorine are prepared by reacting a secondary chlorinated aliphatic amine of formula <FORM:0960597/C1/2> or a salt thereof with a water soluble salt of a carbonic acid in an aqueous medium at a temperature from room temperature to the boiling point of the reaction mixture. Preferably 1 mol of an alkali metal bicarbonate is used with 1 mol of an amine salt and sufficient sodium hydroxide to liberate the free amine: alternatively 2 mols of alkali metal carbonate may be reacted with 1 mol of amine salt. Examples describe the preparation of N-(2-chloroethyl)-, N-(2-chloropropyl)-, N-(3-chloropropyl)- and N-(2-chloropropyl)-5-methyl-2-oxazolidones. Specification 972,304 is referred to.
Patent GB-982998-A (GB)
Title: Apparatus for the production of timber chipboards
IPC: B27N3/16
Filed: 1961-10-24
Abstract: 982,998. Moulding wood chips. TRIANGEL HOLTZWERKSTOFF-G.m.b.H. Oct. 24, 196 [Sept. 14, 1961], No. 38102/61. Heading B5A. Wood chips are classified at various stations 11 fed to bunkers 12 to 23, from which a conveyer 24 feeds them to driers 25, 26, 27 and gluers 28, 29, 30 from which they are fed by conveyers 31 to daylight presses 32, 33 and an extrusion press 34.
Patent GB-1536375-A (GB)
Title: Solid state delay timed switching circuit
IPC: H03K17/292
Filed: 1977-09-13
Abstract: 1536375 Solid state delay timed switching circuit P R MALLORY & CO Inc 13 Sept 1977 [17 Sept 1976] 38202/77 Heading H2H A timed switching circuit comprises a power switching means 12 for connecting 14 a load 86 to a power supply L1-L2, Fig. 2 (not shown), a delay timing means 18 responsive to means 12 for providing a time delay before the start of an operational sequence of functions and which includes a first bidirectional semiconductor switch (triac 52), a function timing means 20 responsive to means 18 for timing an operational function, and a power turn-off means 24 directly respor ive to means 20 for de-energizing means 12 at the conclusion of the timing cycle of means 20 and which includes a second bidirectional semiconductor switch (triac 68). The circuit may control a microwave oven. An alarm timing means 26 indicates the end of the cycle, and also incorrect or faulty operation of the load (e.g. opening of the oven door when the oven is on).
Patent GB-1514006-A (GB)
Title: Dyeing and printing process for cellulose
IPC: D06P3/82
Filed: 1976-09-15
Abstract: 1514006 Dyeing cellulosic materials AZIENDE COLORI NAZIONALI AFFINI ACNA SpA 15 Sept 1976 [19 Sept 1975] 38210/76 Heading D1B Fabrics containing swellable cellulosic material are dyed or printed in a swollen state in an aqueous dye bath containing a dye or mixture of dyes and at least one partially water-soluble solvent (soluble in water to the extent of at least 1% by weight) which is an alkoxyacetal of formaldehyde of formula in which R' is hydrogen or C, to C 10  alkyl, R" is hydrogen or methyl, R"' is C 1  to C 10  alkylene, m, n, o, p, q are whole numbers in the range 0 to 20, at least one of them not being 0. The cellulosic material may be cotton or rayon which may be blended with a synthetic organic fibre e.g. polyester. Conventional methods of application e.g. thermosol methods and continuous processes are specified.
Patent GB-1287850-A (GB)
IPC: A61C1/05
Filed: 1970-08-10
Abstract: 1287850 Turbines HOWMET INTERNATIONAL Inc ZWEIGNIEDERLASSUNG KIEL AUSTENAL - POHL 10 Aug 1970 [28 Oct 1969] 38419/70 Heading FIT A surgical turbine comprises a cylindrical housing 1 containing a turbine rotor 11 driving a shaft 7 extending from one end of the housing, the other end of the latter having inlet and outlet driving gas connections 24, 36 respectively, gas flow through the rotor 11 being in a direction away from the tool carrying end of shaft 7. Driving gas, e.g. air, from inlet 24 flows through bore 23, past a control valve 25, and thence through passages 27, 26, 28, annular chamber 31, passages 18 and annular chamber 17 to the turbine nozzles 16. Gas from the latter then flows in the reverse direction through first and second stage turbine rotor blades 12, 13 and an intermediate stator 14 before exhausting through axial passages (33, 34) Fig.2 (not shown) in body members 20, 3 to outlet connection 36 concentrically surrounding inlet 24. Shaft 7 is supported in ball bearings 8, 9, 10 and has a bore 42 and clamping device 43, 44 to receive a surgical milling or drilling tool. Leakage of gas to the region of the tool is prevented by a cylindrical extension 38 from nozzle member 15, the extension surrounding shaft 7 and fitting into a bore 40 in rotor 11. The control valve 25 consists of a circular member having a cut-out 47 and sealingly supported in a recess 46 in body member 3 by seals 48. The valve 25 can be moved angularly to control the gas flow by means of a hand operated axially movable projection 58 which is connected to the valve via rod 57 and a spring-loaded control slide 51 pivotally engaging a pin 50 fixed to the valve. A brake is provided in the form of a bolt 63 biased to the off position by spring 66 and movable axially in bush 65 so as to bear against the end of shaft 7. The movement is effected by an arm 67 pivotally mounted at one end in a bore 68 in body 3 and bearing on the bolt head 64, the other end of arm 67 engaging a recess in control slide 51 such that when valve 25 is moved to the closed position the brake is applied.
Patent GB-1221919-A (GB)
Title: Applicator assembly for fluent materials
Inventor: ASTON BRUNO D
IPC: A45D34/04
Filed: 1969-07-31
Abstract: 1,221,919. Containers for cosmetics. B. D. ASTON. 31 July, 1969 [12 May, 1969], No. 38525/69. Heading B8P. [Also in Division A4] A cosmetic applicator comprising a brush 14 having a helical array of radial bristles and a container portion 10 is provided with a bushing 16 having a central aperture with circumferentially spaced ribs 34 tapering towards the open end of the container. The bushing removes surplus material from the brush as it is withdrawn and the tapering ribs ensure that sufficient material remains on the brush and that the bristles do not flip outwardly as the brush leaves the container. A foamed plastics sealing ring 24 is provided.
Patent GB-1280365-A (GB)
Title: Improvements in or relating to vehicle fluid-pressure braking systems
IPC: B60T13/38
Filed: 1969-09-18
Abstract: 1280365 Fluid pressure brakes ROBERT BOSCH GmbH 18 Sept 1969 [19 Sept 1968] 38648/71 Divided out of 1280364 Addition to 1246297 Heading F2F In an improvement in or modification of the braking system of Specification 1,246,297 two valve discs 9, 18 of equal size are used in the shut-off valve 7, a throttling pin 12 being pressed into the stem 61 of one of the discs.
Patent GB-386596-A (GB)
Abstract: 386,596. Uniting by fusion. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN-EN APPARATEN FABRIEKEN, Utrecht, Holland. Aug. 31, 1932,. No. 24318. Convention date, Aug. 31, 1931. [Class 83 (iv).] n an arc welding machine, in which the welding head travels longitudinally of the work, the work-table canbeliftedor lowered and the work can be rotated about its longitudinal axis by means associated with the work-table. Two welding heads 4 arranged to weld the same or different seams, are adjustably mounted on rotatably adjustable brackets 3 on columns 1, 2 which may be traversed in the same or opposite directions along the joint by two screwed shafts 9 rotated by chains 8 and worm gear 7 through tumblers and fluid gear 6 from a motor 5. One of the columns may remain stationary while the other is traversed. The work is mounted on a carriage 11 on rollers 12 which may be rotated by a motor 13 when welding circumferential seams, the traverse of the column being stopped. One welding head may weld circumferential seams and the other helical seams. The carriage is run on to rails 24 on a table 14 which is raised and lowered hvdraulicallv from a cylinder 23 by a rack 22 and pinion 21 which operates racks 15, 16 and pinions 17, 18 through bevel gear. Heavy work such as boiler drums, tanks, buoys can thus be easily brought into and removed from the machine.