baber/WOPTO huggingface dataset:
Patent GB-329238-A (GB)
Title: Improvements in steam generators
IPC: F22B21/34
Filed: 1929-08-23
Abstract: 329,238. Babcock &. Wilcox, Ltd., (Babcock & Wilcox Co.). Aug. 23, 1929. Overheating of superheating-tubes, preventing. -A steam generating system comprises a main boiler having a superheater and a furnace walltube boiler with means for passing steam from the wall-tube boiler through, the superheater without entering the main boiler to prevent overheating during starting up. Steam is taken from the respective boilers through pipes 33, 40 a valved connection 41 enabling steam to be passed from the wall-tube boiler into a superheater to which the pipe 33 is connected. A valved pipe 43 connects the pipe 40 with a perforated longitudinal pipe 45 in the drum 25 to enable steam from the wall-tube boiler to pass with steam from the main boiler to the superheater during normal operation.
Patent GB-1438630-A (GB)
Title: Amplifier analysis of emulsions and suspensions
IPC: H03F3/387
Filed: 1972-06-02
Abstract: 1438630 Transformers SOLARTRON ELECTRONIC GROUP Ltd 29 Aug 1973 [2 June 1972] 25768/72 Heading HIT [Also in Division H3] A transformer used in a chopper type feedback amplifier (see Divisions H3-H5) comprises four primary windings 4, Fig. 4, and two separate secondary windings 5, 6. The windings are carried by a brass bobbin 60, Fig. 3, which includes partitions dividing it into four sections, the primary windings 4 being located in the end sections 61, 64 and the secondary windings 5, 6 in sections 62, 63 respectively. A gap 51 in the bobbin reduces eddy-currents.
Patent GB-948666-A (GB)
Title: Hauled coal plough
IPC: E21C27/32
Filed: 1961-07-17
Abstract: 948,666. Mineral-mining machines. A. OELLRICH, [trading as MASCHINENFABRIK UND EISENGIESSEREI A. BRIEN]. July 17, 1961 [May 30, 1961], No. 25839/61. Heading E1F. In a mineral-mining plough in which a plough structure 6 is supported on the plough body 1 by a guide 10 that is directed upwardly and outwardly from a mineral face when the plough is positioned adjacent the face so that for one direction of travel of the plough along the face the structure 6 moves downwards and forwards along the guide 10 to become operative and visa versa for the other direction of travel of the plough, the movement of the structure up the guide is variably limited by an eccentrically mounted, polygonal stop 15 mounted on the body 1. The stop when turned to the required position is locked to the body by a rotatable bolt causing a plunger 17 to engage in an appropriately positioned slot 16 in the stop.
Patent GB-921782-A (GB)
Title: Improvements in or relating to electric connection boxes
IPC: H02G15/10
Filed: 1959-07-28
Abstract: 921,782. Distribution boxes; junction boxes; two-part couplings. SOC. ANON. DE PARTICIPATION APPAREILLAGE GARDY. July 28, 1959 [Sept. 22, 1958], No. 25862/59. Class 38 (1). A connecting box comprises a single insulating moulding formed with two groups of chambers, or one group and a single chamber, for receiving the terminals to be connected. In the construction shown in Figs. 1 and 2, the terminals 4 . . . 6 of a switch are inserted in cylindrical chambers 1 . . . 3 in the block 18 whilst the terminals 11 . . . of a transformer are received in chambers formed by end walls 7, 8 and barriers 9, 10 on the block. The terminals 4 . . . 6 engage contact fingers 16 having stems 14 which engage holes in the terminals 11 . . . 13 and are received in inserts 17 in the block. In another construction, Fig. 3 (not shown), the transformer terminals are received in chambers of rectangular cross-section and connection between said terminals and the contact fingers is effected by intermediate plates. Fig. 6 shows a box adapted for connecting switch terminals, such as 5b, to bus-bars 28 . . . 30. The switch terminals enter cylindrical chambers, such as 2b, in the block and engage contacts 16b which are connected by strips 36 to clamps 39 embracing bared portions of the bus-bars. Clamps 39 are located in a common chamber 26a extending over the length of chambers 2b and opposite walls of which are slotted at 31 . . . 33 for the passage of the bus-bars, the slots being closed above the bus-bars by a cover 35 which serves to retain, whilst molten, sealing compound with which the chamber is filled.
Patent GB-1287070-A (GB)
Title: Preparation of l-dopa
IPC: C07C227/16
Filed: 1971-04-19
Abstract: 1287070 L - # - (3 - acyl - 4 - hydroxyphenyl)- N-acyl alanines and L-Dopa SOC FARMACEUTICI ITALIA 19 April 1971 [4 April 1970] 25905/71 Heading C2C Novel L - # - (3 - acyl - 4 - hydroxyphenyl)-N- acyl-alanines, prepared by acylation of an L- tyrosine ester followed by rearrangement in the presence of aluminium chloride, are used to prepare L-dihydroxyphenylalanine (Dopa) by  oxidation, e.g. with hydrogen peroxide, followed by hydrolysis.
Patent GB-1392796-A (GB)
Title: Optical signal reproducing apparatus
IPC: G11B7/12
Filed: 1973-05-31
Abstract: 1392796 Optical playback apparatus TOKYO SHIBAURA ELECTRIC CO Ltd 31 May 1973 [31 May 1972 12 June 1972 20 July 1972 (2)] 25959/73 Heading G5R Optical apparatus for reproducing signals, particularly video signals, recorded as sinusoidal undulations in a groove comprises a source 11, e.g. a laser, emitting a beam 10 of coherent light which has a width along the groove no greater than the pitch of the undulations, which is of the order of microns; and detectors 21 for detecting reflected light. The incident beam is normal to disc 20 and is focused by a cylindrical lens 19 to a band extending transverse to the groove and of equal width. The two detectors 21 are spaced apart along one groove and comprise bundles of optical fibres directed at the illuminated area and forming an angle of at least 15 degrees with the incident beam. The difference in outputs from photo-multipliers 23 is derived by a circuit 25. The beam is centred laterally on the groove by means of two phototransistors 22 spaced radially, their difference signal derived at 26 controlling a reflector 16 to shift the incident beam. The record medium may be disc or tape.
Patent GB-1334279-A (GB)
Title: Device for detecting the presence of debris in a fluid medium
IPC: G01N15/10
Filed: 1971-04-19
Abstract: 1334279 Woven filter screens BOEING CO 19 April 1971 [1 April 1970] 25982/71 Heading D1K [Also in Division G1] A filter screen is woven with electrically conductive and non-conductive yarns. The conductors may be warp threads, and may be separated by non-conductive warp threads, may be woven in pairs (Figure 3, not shown), may be helically woven as weft in a tube (Figure 2, not shown) may be leno woven (Figures 4 and 5, not shown) and may be bonded to the non conductors at their points of intersection.
Patent GB-1398124-A (GB)
Title: Machine tools
IPC: B23B31/30
Filed: 1972-06-03
Abstract: 1398124 Workpiece clamping GULLICK DOBSON Ltd 4 June 1973 [3 June 1972] 26002/72 Heading B3B A machine tool that includes a mechanism for orientating a workpiece which has a previously formed location, e.g. a previously drilled hole, relative to a datum position comprises a chuck 12 rotatably mounted on a sensing head 10 which has at least one sensing device 16, drive means to cause rotation of the chuck on the sensing head, control means responsive to the sensing device 16 being engaged by the workpiece to cause rotation of the chuck on the head 10 until the sensing device 16 senses said previously formed location, e.g. by engaging in said hole whereby driver means is stopped and the workpiece is located for a subsequent machining operation in relation to said previously formed hole. The chuck 12 comprises three jaws 14 pivotably actuated by hydraulic rams to grip the workpiece. At a rise in pressure in the hydraulic circuit controlling the rams 15 a switch is operated to supply air pressure to a reciprocal air motor 32 which acts through a pinion 33 to rotate the chuck 12. The sensing head 10 includes a plurality of sensing devices 16 on different pitch circles and a cover-plate 19 is rotated to allow a selected one to protrude. Each sensing device 16 comprises a piston 18 movable in a cylinder 17 supplied with air pressure and including a pilot tube 21. When the piston is depressed by a workpiece a pressure switch, transducer or fluidic device is actuated to initiate rotation of the chuck 12. The mechanism is mounted in a structure so that it can be rotationally indexed by a rack pinion drive 36 and moved linearly on guide bars 39.
Patent GB-962317-A (GB)
Title: Improvements relating to commutators for dynamo-electric machines
Inventor: GRAY WILLIAM JOHN BROWN
IPC: H01R39/04
Filed: 1960-07-26
Abstract: 962,317. Commutators for dynamo-electric machines. BUSHING CO. Ltd., and A. REYROLLE & CO. Ltd. July 26, 1960, No. 26006/60. Heading H2A. In a commutator of the type whose conducting segments are clamped together by two Veerings, the segments 10 are spaced apart by sheets of insulation 11, e.g. cured epoxy resin bonded paper or glass cloth, secured to the conducting segments by adhesive. Before assembly of the commutator, either the conducting or insulating segments are coated with an uncured or partly cured resin, e.g. " Araldite " (Registered Trade Mark). The segments and spacers are then assembled in a jig and machined to form at each end the clamping groove 12. Clamping rings 15, 17 are then placed in position with strips of micanite covering their surfaces, the assembled segments being interposed between them, and the rings are drawn together by six bolts 20 which have micanite sleeves 21. The commutator is left for twelve hours at room temperature and then heated for thirty minutes at 100‹ C. to cure the resin. Finally, further micanite layers 24 are inserted and secured by a coating of shellac, or by shellac-coated string.
Patent GB-1047576-A (GB)
Title: Separator for gases entrained by liquids
IPC: B01D19/00
Filed: 1965-06-21
Abstract: 1,047,576. Degasifying liquids. AVERYHARDOLL Ltd. June 21, 1965 [July 3, 1964], No. 26132/65. Heading B1M. The upper part of a separating chamber 1 of a gas/liquid separator is connected to the inletside of a pump 18 delivering the liquid to the chamber, so that a fraction of any gases accumulating in chamber 1 is drawn off by pump 18 through conduit 14 and consequently the dimensions of a drainage tank 3 in which liquid entrained in the gas as mist and frothing emulsions are removed may be reduced. The chamber 1 communicates with tank 3 through a conduit 15 and secondly through a by-pass system comprising an opening 5, a control chamber 2 and a passage 4 of small bore. Pump 18 draws liquid from a chamber 20 to which liquid is supplied through a filter 19 from a reservoir pipe 32 and also to which liquid accumulating in tank 3 flows through pipe 26 when float 23 is raised. Spring biased valve 11 opens under small pressure to allow accumulated gas in chamber 1 to pass to tank 3 and to atmosphere at 29. Only if liquid fills chamber 1 does float 7 lift and liquid flow through opening 5 to chamber 2. When pressures in chambers 1 and 2 are balanced valve 11 is reclosed and tank 3 receives liquid through passage 4. Modifications of the bypass system are shown in Figs. 2-5 not shown.
Patent GB-350829-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/52
Filed: 1930-09-02
Abstract: 350,829. Safety razors. THOMSEN, C., 84, Ring- gaden, Aarhus, Denmark. Sept. 2, 1930, No. 26175. [Class 30.] An adjustable inclined bladecarrier is attached to the handle 6 by means of a conical spigot 8 on the end of the handle, a clamping screw-ring 11, and a flange 10.
Patent GB-1403651-A (GB)
Title: Structures for use in transporting coils
IPC: B60P3/035
Filed: 1973-06-01
Abstract: 1403651 Mobile luffing-arm apparatus; loading vehicles T L R HARDWICK 1 June 1973 26203/73 Headings B8H and B8E Coils are transported by means of a wheeled mobile frame 2 having a forward end portion 3 and side members 6, 7, an elongate member 5 on which the coils are actually carried being mounted on a support 9 which is pivotally connected to the frame portion 3 by a first pair of rams 45, 46 whose pistons are connected to the lower end of the frame portion 3 and whose cylinders are connected to the upper end of the support 9 so that the extension and retraction of the two said rams causes the retraction and extension respectively of the support 9 and elongate member 5 relative to the frame 2. By means of a further pair of rams 49, 50 which are also connected between the frame portion 3 and support 9 the elongate member 5 is tilted about a horizontal axis at the base of the support 9. The mounting of the support 9 on the frame portion 3 also includes a lift arm (37) pivotally connected therebetween, Fig. 5 (not shown). The mobile frame 2 is connected to a prime mover 4, e.g. a tractor, by means of a pair of ears 27, (28) on the frame portion 3 which are pivotally connected respectively to upper and lower frame portions 29, (30) on the prime mover 4, Fig. 5 (not shown). Movement of the mobile frame 2 about the pivotal mountings 27 (28) and 29 (30) is effected by means of a pair of rams 33, 34.
Patent GB-448773-A (GB)
Title: Improvement in water-taps, gas-taps and steam-taps, and all other taps controlling liquids including strong acids
IPC: F16K1/38
Filed: 1934-09-13
Abstract: 448,773. Valves. GILLESPIE, A. V., 2, Allen Terrace, Phibsboro', Dublin. Sept. 13, 1934, No. 26253. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 6, 1936]. [Class 135] A valve comprises a tapered plug of metal, preferably brass, seating on a corresponding socket and controlled by a screwed shaft integral with the plug or connected to it by a T-piece as shown. When used for acids, however, the plug and seating may be of glass. The plug may be threaded or grooved and the socket similarly formed.
Patent GB-815068-A (GB)
Title: Improved hearing aid
IPC: A44C7/00
Filed: 1955-09-14
Abstract: 815,068. Ear-rings. HOLLINGSWORTH, M. H. Sept. 14, 1955 [Sept. 20, 1954], No. 26342/55. Class 43 [Also in Group XXXIX] A hearing aid set (see Group XXXIX) is housed in an ear-ring. In one arrangement, a main casing 10 houses a transistor amplifier and a receiver and the microphone is mounted in a casing 12 suspended from the casing 10 by a rotatably mounted plastic tube 11. A fastener 28 looped through holes 27 in the casing enable the ear-ring to be attached to the pierced lobe of the ear. A rubber tube 16 connected to the receiver is formed with an earplug. Volume is controlled by a knob p and the battery can be removed by an ejector 24. Ornamental covers 30, 30a may be clipped on to the two casings 10, 12. In a second arrangement, the microphone receiver and amplifier are all housed in one casing. In a third arrangement, Fig. 7, the microphone and the amplifier are housed in the casing 10 and a bone conduction receiver 14a is cemented to the head behind the ear. Ornamental coverings may be used as before.
Patent GB-864918-A (GB)
Title: Process for the production of heptadecane-1:17-dicarboxylic acid
IPC: C07C51/295
Filed: 1957-08-21
Abstract: Heptadecane 1, 17-dicarboxylic acid is prepared by subjecting an unbranched, unsaturated C18 fatty acid in which the carboxyl group is terminal to hydroformylation at a pressure of not less than 180 kg./sq. cm., oxidising the product of the hydroformylation by fusion with an alkali metal hydroxide, and liberating the acid from the alkali-metal salt formed. Advantageously, the fatty acid may be introduced gradually into the hydroformylation zone during from 50-90% of the duration of the hydroformylation reaction.  The product of hydroformylation is preferably treated with water under elevated pressure to remove residual catalyst, and the methylol group may be hydrogenated prior to alkali fusion.  The free heptadecane-1, 17-dicarboxylic acid may be obtained by dissolving the alkaline melt in water, lowering the pH to 8,1 to 8,3, and decomposing the resulting precipitate with mineral acid.  Alternatively the pH of aqueous solution of the alkaline melt may be lowered directly to 2 with mineral acid and the desired product separated from the resulting precipitate with a selective solvent; e.g. heptane dissolves by products and unreacted starting material leaving the product undissolved.  The starting material fatty acid may contain more than one double bond.  Specification 734,030 is referred to.
Patent GB-886789-A (GB)
Title: A mallet for use in workshops
IPC: B25D1/00
Filed: 1960-07-29
Abstract: 886,789. Mallets. EMPRESA NACIONAL DE HELICES PARA AERONAVES S.A. July 29, 1960 [July 30, 1959], No. 26444/60. Class 61. A mallet comprises a hollow metal handle 1 integral with a head 4 of frusto-conical shape which houses and holds a plug 5. The handle is a light alloy casting having a hand grip part 1 of hexagonal cross-section, the part 1 being bifurcated to provide arms 3 of I-section to which is rigidly attached the head 4. The head 4 carries the plug 5 which is made of laminated wood. The taper of the head 4 is such that the inserted plug 5 is securely held in position during use, but may be removed by pressure from the narrow end of the housing.
Patent GB-444193-A (GB)
Title: New intermediates and their use in the manufacture of dyeline papers
IPC: G03C1/54
Filed: 1934-09-14
Abstract: 4 : 4<1>-Diamino-2 : 2<1> - 5 : 5<1> - tetraalkoxydiphenylarylmethanes are manufactured by reacting a 2 : 5 - dialkoxyaniline with benzaldehyde, or a substitution product thereof not containing groups conferring solubility in water, e.g. a chlorobenzaldehyde, a nitrobenzaldehyde or a tolualdehyde in an acid medium.  The tetrazo-compounds of the products are employed in the production of light-sensitive layers on a suitable base, e.g. of paper.  Photographic prints are made by exposing these layers under a pattern, e.g. a drawing or a photographic positive or negative, and developing with an aqueous solution of a coupling component, advantageously an acid solution containing a salt of a strong base and a weak acid.  In examples: (1) 2 : 5-dimethoxyaniline is reacted with benzaldehyde in the presence of hydrochloric acid to produce 4 : 4<1> - diamino - 2 : 2<1> - 5 : 5<1> - tetramethoxytriphenylmethane; (2) 2 : 5 - diethoxyaniline is reacted with benzaldehyde in the presence of sulphuric acid to yield the corresponding ethoxy-compound; dipropoxy-and dibutoxyaniline are also specified as starting materials; (3) the product of (1) is tetrazotized and paper is coated, by dipping, brushing or spraying, with an aqueous solution of the tetrazo-compound to which tartaric acid has been added; (4) sheets of paper or other material coated as in (3) are exposed to daylight behind a photographic negative or stencil and developed in a bath containing phloroglucinol, resorcinol and sodium benzoate, producing a bluish-black print; (5) the developing bath contains phloroglucinol, tartaric acid and sodium acetate, a violet-black print being obtained; (6) a reddish-brown print is obtained by developing in a bath containing resorcinol, tartaric acid and sodium formate; (7) a bluish-brown print is obtained by means of a developing bath containing phloroglucinol and borax; (8) the product of (2) is tetrazotized and the product employed in the processes of (3) to (7) prints of deeper shades being produced.  Specifications 398,163; and 425,235, [Group XX], are referred to.
Patent GB-1162927-A (GB)
Title: Method of making ceramic capacitors
IPC: H01G4/30
Filed: 1968-06-04
Abstract: 1,162,927. Capacitors. ERIE TECHNOLOGICAL PRODUCTS Inc. 4 June, 1968 [10 Aug., 1967], No. 26514/68. Heading H1M. In a method of making capacitors, a flexible plastics strip 2 is coated on both sides with a mixture comprising green ceramic and binder in a vehicle, the coated strip is dried, perforations 4 symmetrically disposed adjacent the edges of the strip are provided at regular intervals, successive patterns 5 of metal paint are applied along the length of the coated strip in repetitive relation to perforations 4, the repeating unit being from A to B in Fig. 1, and the pattern comprising rows of capacitor electrodes, the strip is passed through a punching die which is so indexed in relation to perforations 4 that the uniform successively punched out plates when stacked form a capacitor, and the stacked-plates are heated to eliminate the binder and plastics film and cure the ceramic and paint. When the patterns are spaced as shown, unelectroded plates will be provided at each end of the stack. Advantageously, as shown in Fig. 3, the punched out areas are so related to the metallized areas that the electrodes 5a, 5b on successive plates extend to opposite edges of the punched-out areas 13, 14 for making parallel connection to electrodes of opposite polarity in the finished capacitor.
Patent GB-1467715-A (GB)
Title: Method of and apparatus for effecting electro-deposition of  metal on articles to be electroplated
IPC: B65G49/04
Filed: 1974-06-14
Abstract: 1467715 Conveyer apparatus for electrodepositing metals LAMINOIRS A FROID DE THIONVILLE 14 June 1974 [18 Sept 1973] 26570/74 Headings C7B Metal e.g. Ni, Cr or Cd, is electro-deposited on articles 36 by lowering them into and lifting them out of a system of different elongated baths 8a, b, c in succession, loaded on to conductive supporting members, e.g. rods 28 each connected to supporting fork 33 and two fingers 34, suspended from an endless conveyer 1 moving continuously at constant speed around a closed circuit which follows a vertically undulatory path; electro-plating is effected in one of the baths 8b to which electric current is supplied e.g. via bars 9, and the articles are unloaded close to where they are loaded. The conveyer 1 comprises an endless chain 2 circulating in static rail means, e.g. two U-shaped rails 3 facing one another. The members depend in pairs at regular intervals from the chain, preferably using a support, (14) Fig. 3 (not shown) to which is fixed an insulating spacer (16), two plates 21, two brackets 20 each fixed by spindles 26 to the rods 28, two metal shoes (19) pressed by springs (18) within holes (16a) Fig. 5 (not shown) in the spacer (16) to co-operate by friction with the inside (9a) of the bars 9.
Patent GB-1037347-A (GB)
Title: Improvements in or relating to turbocharged two stroke cycle internal combustion engines of the compression ignition type
Inventor: SMITH JAMES JOHN STEWART
IPC: F02B37/04
Filed: 1963-07-04
Abstract: 1,037,347. Two stroke supercharged engines. W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) Ltd. June 11, 1964 [July 4, 1963], No. 26586/63. Heading F1B. In an engine having an exhaust driven turbocharger 3, Fig. 3, in series with an engine driven compressor 7, means 8 are provided to prevent the pressure difference between the inlet and outlet of the compressor 7 exceeding a predetermined value. In Fig. 3 the pump 7 is a variable displacement pump, e.g. as described in Specification 645,484, controlled automatically to prevent the desired pressure rise being exceeded. In Fig. 8 a by-pass valve 15 connecting the outlet 17 of the engine driven compressor to its inlet 12 end responsive to both the inlet and outlet pressure opens at the desired pressure difference. A valve 18 is also provided to by-pass compressor 13 when its inlet pressure exceeds its outlet pressure. In a modification the engine driven compressor is driven through a variable speed gear controlled to prevent the desired pressure difference being exceeded.
Patent GB-1512569-A (GB)
Title: Stripper means for meat skinning machines
IPC: A22C17/12
Filed: 1975-06-23
Abstract: 1512569 Skinning machine for meat cuts TOWNSEND ENG CO 23 June 1975 [23 Aug 1974] 26588/75 Heading A2U A skinning machine-Fig. 5, for meat cuts comprising a drive roll 26 and a fixed blade 22 is characterised by a series of stationary hook members 42, which rest in grooves in roll 26 and separate the detached skin 28 from the roll. The hooked members are mounted- Fig. 3 on a shaft 40 which is slotted to prevent axial and circumferential movement but enables the members to be slid radially on and off the shaft. The shaft is normally locked in position by screw 66 but may be released and rotated to clean the roll. Reference has been directed by the comptroller 1322870.