baber/WOPTO huggingface dataset:
Patent GB-276437-A (GB)
Title: Improvements in or relating to the construction of wooden boxes
IPC: B65D25/14
Filed: 1926-05-28
Abstract: 276,437. Mudd, H. A. May 28, 1926. Ventilating boxes; lined boxes.-A wooden box for transporting butter &c. has a rigid lining supported by the inner surfaces f which are grooved or fluted so as to allow moisture or vapour to escape from the inner surfaces without penetrating the lining. The sides, top, bcttom and ends of the box are all grooved or fluted and the flutings are preferably semi-circular in cross-section and formed closely together so that contact between the box walls and the lining is only along the narrow ridges between the flutings. The lining is preferably of odourless wood, such as aspen.
Patent GB-866091-A (GB)
Title: Improvements in and relating to polarimetry and polarimeters
IPC: G01J4/04
Filed: 1958-04-29
Abstract: 866,091. Polarimeters. BOR, J. July 27, 1959 [April 29, 1958], No. 13603/58. Class 97(1) A method of polarimetry comprises passing a parallel beam of light through a polarizer and then through a rotator adapted to rotate the plane of polarization of the light by different angles depending on the spacing of the light path from a neutral or zero-rotation reference path through the rotator, the light thereafter being passed through an analyser, and observations made on the light pattern projectedthereby. As shown, parallel plane polarized light from a nicol prism 1 is passed through an optical rotator 3, 4 and an analyzer 2. and then dispersed at 6 and focused by crosscylindrical lenses 7 and 8 on a screen or photographic plate 9. The rotator 3, 4 consists of two wedge shaped polarizing elements, adapted to rotate the plane of polarization in opposite senses, so that the net rotation of the light transmitted thereby depends upon the spacing of the light path from a zero-rotation plane indicated by the line 5. A pattern of alternating dark and light springs will be formed on the screen or plate 9 and this pattern will be displaced when a specimen 12 is introduced into the light path, such displacement being a measure of the rotary power of the specimen 12. Monochromatic light maybe passed through the instrument or, if it is desired to carry out at one time tests with different wave lengths, the light may be polychromatic.
Patent GB-1279096-A (GB)
Title: Improvements in or relating to refractory compositions
Inventor: BODEN DONALD
IPC: C04B14/12
Filed: 1969-02-08
Abstract: 1279096 Refractory compositions RESIL PROCESSES Ltd 8 May 1970 [8 Feb 1969 14 March 1969] 37812/68 and 13624/69 Heading C1H [Also in Division C3] An insulating refractory castable composition comprises by weight 15 to 35% of "floaters", 30 to 45% of calcium aluminate cement and a refractory aggregate. The "floaters" are hollow spheres of expanded silicate glass and can be the components of fly ash which float on water or hollow spheres made from kaolin or china clay. The composition can contain clay; suitable aggregates are silica sand, crushed firebrick, grog, coke and magnesia. Natural or synthetic resin, glue or waterglass can be included as a binder. The composition is used for lining the inner surfaces of moulds for casting metals.
Patent GB-731121-A (GB)
Title: Improvements in or relating to rust preventive compositions
IPC: C23F11/12
Filed: 1953-05-15
Abstract: A rust-inhibiting composition comprises 8 to 12 per cent by weight of paraffin wax of melting point between 100 DEG  and 120 DEG  F. and molecular weight below 500 and 1 to 5 per cent of the partial long-chain (C12 to C22) fatty acid ester of a polyhydric alcohol, dissolved in a non-aromatic hydrocarbon solvent, e.g. naphtha.  The preferred esters are mono-oleates of sorbitan or pentaerythritol but monostearates, monolaurates and dioleates of these and related alcohols as well as the ethylene oxide condensation products of such esters may be used. Additional ingredients such as sodium nitrite, sodium benzoate and other inorganic or organic corrosion inhibitors, antioxidants and metal deactivators, fatty or naphthenic acid soaps of various metals, polyisobutylene and related polymeric materials may be included.  A composition (Composition 4) is prepared by mixing 10 per cent of petroleum wax, melting point 110 DEG  to 116 DEG  F. and average molecular weight 350, 2 per cent of sorbitan mono-oleate and 88 per cent of non-aromatic solvent naphtha of boiling range 310 DEG  F. to 390 DEG  F.  Specification 604,860 is referred to.
Patent GB-595220-A (GB)
Title: Improvements in or relating to contact for sockets primarily for radio valves and the like
IPC: H01R33/76
Filed: 1945-05-31
Abstract: 595,220. Two-part couplings. JACKSON, D., and PYE, Ltd. May 31, 1945, No. 13665. [Class 38 (i)] A contact in a socket, e.g. in a valve-holder is formed from an H-shaped blank having limbs 1, 2 and bridge 3. Portions 4, 5, 6, 7, are bent towards each other as shown in Fig. 4, a detent 11 being cut from portion 6. Portion 7 has a notch 9 and a tag 8. The contact is inserted in an aperture 13 in the socket 12 the aperture having a wide part 14 for the contact portions 3, 4, 5, and a narrow slot 15 for the portions 6, 7. The detent 11 springs out at the end of the slot to retain the contact in the holder. The limbs 1, 2 are narrowed adjacent the bridge so that when the contact is formed the bridge lies within the overall width. The portion 7 may have a detent as well as the portion 6. According to the Provisional Specification the detent may be dispensed with. Specifications 595,178, 595,185, 595,186 and 595,187 are referred to.
Patent GB-109974-A (GB)
Title: A Machine to Make Tubes from a Metal Strip.
Inventor: NIELSEN PEDER
IPC: B21C37/08
Filed: 1917-09-24
Abstract: 109,974. Nielsen, P. Sept. 22, 1916, [Convention date]. Pipes and tubes.-Flat metal strip is fed from a roll 11 through a guide 12 by rolls 13, 14 which also bend to a nearly semicircular section. It is then cut by a shear blade 17 moving in guides on a plate 16 which is hung on a pin 15 so that the shears can move forwards with the work. The shear-blade 17 is depressed by a cam against a spring and a spring returns the plate 16 against a stop after the blade has been raised. The semicircular strip is then moved forward at a slightly greater speed through a guide 18, and is bent round tapered mandrel, having a web on its upper side, by a pair of bending rolls 19 which give a completely circular form to the strip, except that the edges are held apart by the web on the mandrel. A pair of smaller rolls 20 press the tube round the small end of the mandrel, and other pairs of rollers 21, 22, 23 finish the tube and feed it to straightening rolls 24 and other feeding-rolls 25, 26. The end of the tube strikes a hinged stop 27 which actuates a clutch to give the shearblade-actuating shaft a single revolution. The machine is driven by a belt on a shaft which is geared to the various rolls bv spur and chain gear, the shear-blade being driven independently of the machine.
Patent GB-333177-A (GB)
Title: Improved method of washing
IPC: D06L1/16
Filed: 1929-05-03
Abstract: 333,177. Rayner, A. May 3, 1929. Washing, processes and materials for.-Yarns or fabric are washed by first applying a soapforming acid and then treating the impregnated material with dilute alkali to generate soap in situ. The acid may be applied as a dilute emulsion containing about one to two per cent of acid, the concentrated emulsion comprising 60 parts by weight of commercial olein, 2 parts of Turkey red oil, one part of gelatine and 37 parts of water.
Patent GB-826860-A (GB)
Title: Improvements in or relating to uncoated electrodes for use in electric arc-welding
IPC: B23K35/30
Filed: 1956-05-04
Abstract: A welding wire for arc welding parts of rimmed steel has a composition within the following range in per cent by weight .Mn.1.0-3.0 .Si.0.6-1.4 .C.0.05-0.15 .Fe.the remainder A strongly reducing metal may be present up to 0.2%.  Examples of suitable alloys are given, these alloys containing also 0.02% P and 0.02% S. Specification 760,258 is referred to.
Patent GB-1106959-A (GB)
Title: Light-stabilised fibre-forming polyamides
IPC: C08K3/32
Filed: 1965-04-01
Abstract: 1,106,959. Light stabilized polyamides. ALLIED CHEMICAL CORPORATION. 1 April, 1965 [29 Oct., 1964], No. 13931/65. Addition to 968,770. Heading C3R. Nylon containing at least 2% pigment or delustrant has dissolved therein as light stabilizer a divalent manganese salt in amount 5 to 500 p.p.m. (reckoned as manganese) together with at least 1 but less than 2 mols. hypophosphorous acid per gm-atom of manganese. The pigment may be TiO 2 , the nylon may be 6, 66, 610 or 11, and the salt may be the chloride, nitrate, acetate, lactate, tartrate, salicylate or p-toluene sulphonate. The compositions claimed in Specification 997,316 are disclaimed.
Patent GB-552589-A (GB)
Title: Improvements in or relating to comparators
IPC: G01B5/00
Filed: 1941-10-30
Abstract: 552,589. Comparators. MILES, S. J. Oct. 30, 1941, No. 13956. [Class 106. (ii)] Relates to instruments of the type comprising a stand 2 and an arm 3 adjustable thereon carrying a checking device 4 such as a dial gauge overhanging a work table 5 and consists in providing a differential screw arrangement to give a fine adjustment between the checking device 4 and the work table 5. The arm 3 is bored and provided with a bush 8 screwed at the upper end to receive the larger diameter 7 of a differentially threaded screw 6. The smaller diameter 10 of the screw enters a threaded sleeve 11 carrying the checking device 4. This sleeve is provided with a groove which is engaged by a pin 14 to prevent the sleeve turning about its axis. A spring 17 is located between bush and sleeve. By turning the screw 6 the checking device is adjusted an amount depending on the difference between the pitches of the screw threads.
Patent GB-1455358-A (GB)
Title: Equipment and method for making visible the approach and landing  path of aircraft in low visibility weather
IPC: B64F1/20
Filed: 1974-03-29
Abstract: 1455358 Visual signalling for aircraft landing L EIGENMANN 29 March 1974 13972/74 Heading G4F An aircraft landing aid comprises visually recognizable devices at intervals along the glide path. Such devices may be the peaks of jets of water containing matter readily seen in low visibility or the peaks of ballistic trajectories or helium-inflated balloons moored to the ground Arrangements are included for recirculating anything sent up. In the case of jets of liquid, the liquid may be hygroscopic (e.g. glycerol, ethylene glycol, propylene glycol) which absorb the water droplets in fog and low clouds thereby affording a clearer atmosphere over the intervals of the glide path. Ballistic bodies may be fracturable spherical envelopes containing water, the envelopes being of pigment or coated with luminescent or phosphorescent material. A control system for maintaining water jet peaks at the correct heights is outlined. It is preferable that the glide path defined is just below the glide path to be followed.
Patent GB-1497213-A (GB)
Title: Coke ovens
IPC: C10B39/14
Filed: 1975-04-04
Abstract: 1497213 Confining dust during discharge of coke from an oven HARTUNG KUHN & CO MASCHINEXFABRIK GmbH 4 April 1975 [16 April 1974] 13991/75 Headings F4X and F4B A hood 7, Fig. 1, for covering a coke quenching car 3 on a carriageway 6, is supported solely from that side of the carriageway which is remote from a coke oven 1. During discharge of the oven 1, coke passes via a guide 2 on a car 5 to the quenching car 3. The hood is supported from a structure 9 by means of a frame 8 having rollers 16, 17 and 22 which run on rails 14, 15 and 21. There is a counterweight 20 to the hood. A motor 18 can drive the hood along the structure 9, e.g. an electric motor with an associated current rail or trailing cable or an hydraulic or pneumatic motor may be used. Instead of equipping the hood with a motor, the hood may be entrained for movement by the coke guide car or quenching car. Fig. 2 shows an alternative hood structure 7, 8 and its supporting structure 9 with rails 23, 24 ,25 engaged by rollers. A gas collecting pipe 28 can be put in communication with an exhaust gas pipe 30 from the hood by means of a gas transfer gate 27 mounted on the hood structure 7, 8. The gate is movable as indicated by the double headed arrow. Movement to the left pivots a lid 29 upwardly and connects an opening in the pipe 28 with the exhaust pipe 30. On the supporting frame 8, there is a platform 31 which can be reached by steps 32 from a master walk 4, the steps 32 being connected solely to the hood structure 7, 8.
Patent GB-858850-A (GB)
Title: Improvements in the purification and stabilisation of derivatives of phenylene diamine
Inventor: WEISS EMIL
Filed: 1959-04-24
Abstract: A process for purifying and stabilising derivatives of phenylene diamine alkylated, arylated or aralkylated at the nitrogen atoms, which may be used as gasoline stabilisers (see Group III), comprises treating said compounds with a -sodium sodium acetate.  The process may be carried out in the presence of organic hydroxy compounds such as phenols and alcohols, e.g. from methanol to isobutanol, amyl and higher alcohols and glycols.  A sludge is formed from the impurities, e.g. 2-methyl benzimidazole or its homologues which may be separated by vacuum distillation. The purified products may be stabilised by the addition of a further small amount of a -sodium sodium acetate. The purification of N, N1-disecondary butyl phenylene diamine is described in examples.ALSO:Gasoline is stabilized by the addition of phenylene diamines alkylated, arylated or aralkylated at the nitrogen atoms which have been treated with a -sodium, sodium acetate of formula Na.CH2COONa (see Group IV(b)).  In an example N,N1-di-secondary butyl-paraphenylene diamine is added to commercial cracking gasoline.
Patent GB-911765-A (GB)
Title: An improved combined cheque pack and record sheet
Inventor: DAVIES ALBERT EDWARD
IPC: B42D5/02
Filed: 1959-04-24
Abstract: 911,765. Cheques. DAVIES, A. E. June 16, 1960 [April 24, 1959], No. 14091/59. Class 16. Cheques 3 are attached to a record sheet 1, folded transversely along parallel lines 9, by their upper ends 3a, and strips 5a of the record sheet and/or the overlying portions of the cheques are treated, e.g. the back of each cheque provided with a carbon coating, so that an indelible copy of particulars entered in the upper part of a cheque is produced on the record sheet, whereby the user produces his own statement of account. The cheques are detachable from the record sheet along lines of perforations 6 and may be attached to both sides of the record sheet. The width of the record sheet may be greater than that of the cheques.
Patent GB-439462-A (GB)
Title: Improvements in and relating to reflex or twin-lens cameras with photoelectric exposure meters
IPC: G03B17/06
Filed: 1935-05-15
Abstract: 439,462. Photographic twin-lens and reflex cameras ; exposure meters. ZEISS IKON AKT.-GES., 72, Schandauer Strasse, Dresden, Germany. May 15, 1935, No. 14262. Convention date, June 1, 1934. [Class 98 (i)] In photographic reflex or twin-lens cameras, a photo - electric cell for operating an exposure meter is carried by the foldable hood of the view-finder or focusing screen. As shown, the twin-lens camera 1 has taking and view - finder lenses 2, 3 coupled together. The view-finder has as viewing screen a frosted lens. The hood has a front wall 5 carrying a photo-electric cell 9, side walls 7, 8 and a back wall 6 forming the lid of the hood.
Patent GB-685481-A (GB)
Title: Improvements in or relating to the manufacture of thin-walled metal tubes
Inventor: GARDNER CHRISTOPHER STANLEY
IPC: B23Q3/08
Filed: 1950-06-08
Abstract: 685,481. Making seamless tubes. TEDDINGTON CONTROLS, Ltd. June 7, 1951 [June 8, 1950], No. 14364/50. Classes 83 (ii) and 83 (iv). A method of manufacturing thin-walled metal tubes of stainless steel or other metals difficult to draw comprises boring a bar stock to the required internal diameter, filling the bore with a molten low-melting point metal or alloy which expands on solidification, utilizing the solid core as a mandrel to support the stock while reducing the latter to the required wall thickness by turning or grinding operations and subsequently melting out the core. The mandrel, which may be of type metal or similar antimonial alloy, may be centred at each end for supporting in a lathe or grinder or may be longer than the tube to provide an end portion, for engagement with a chuck. One, or both, ends of the tube stock may be provided with internal grooves or serrations into which the molten metal flows when casting the mandrel and so provides an interlock between the mandrel and the stock. Tubes having a wall thickness of a few thousandths of an inch and having successive portions of different internal or external diameters may be made by this method, e.g. a thin walled tube with thicker end portions for facilitating the connection to other members. Several tube lengths may be produced from a single piece of stock by cutting up the finished tube and mandrel and then removing the mandrel portions from the tubes.
Patent GB-623889-A (GB)
Title: Improvements in primary electric cells
IPC: H01M6/06
Filed: 1947-05-30
Abstract: 623,889. Batteries. BURNDEPT, Ltd., RICHARDSON, R. P., and LEWIS, R. W. May 30, 1947, No. 14424. [Class 53] A primary cell comprises a carbon or iron electrode 4 with a mercuric oxide depolarizer dolly 5 surrounded by a negative electrode consisting of a pile of annular zinc trays 1 nesting one within another and containing absorbent washers for retaining electrolyte. The bottom element of the zinc pile is a complete tray without a central opening and the top element 3 extends upwardly as shown and receives a washer 9 and sealing compound 8. The cell is covered with bitumen or a polyvinyl chloride or other plastic sheath 7 which is turned over the lip of the zinc element 3 and holds a metal cover 10 in place. The electrolyte consists of a solution of caustic potash. Specifications 612,086 and 620,445 are referred to in the Provisional Specification.
Patent GB-450194-A (GB)
Title: Improvements in or relating to hand punching tools
IPC: B26F1/36
Filed: 1935-05-17
Abstract: 450,194. Hand punching tools. RODGERS & SONS, Ltd., J., and PALMER, D. A., No. 6 Works, Pond Hill, Sheffield. May 17, 1935, No. 14435. [Class 61 (ii)] In a hand punching - tool for tickets, stationery, textiles, and the like in which jaws 6, 5 are pivoted together at or near one end 7 and are provided at or near the other end with a punch 8 and a die 9 respectively, two inwardly projecting webs 10, 11 and 13, 14 are provided on each jaw and have co-operating bearing surfaces facing in opposite directions. The jaws may be held together by a pin 19 and slot 21 and urged apart by a spring 15 supported by pins 16 or enclosed between extensions of the flanges 11, 14. A spring stripper plate 22 and gauging grooves 23, 24 may be provided.
Patent GB-591777-A (GB)
Title: Multi-stage compressor plant
IPC: F04D29/58
Filed: 1944-07-28
Abstract: 591,777. Centrifugal and axialflow compressors. AKT.-GES. BROWN, BOVERI, & CIE. July 28, 1944, No. 14468. Convention date, Sept. 9, 1943. [Class 110 (i)] A compressor plant comprises a multi-stage centrifugal compressor with interstage cooling, followed by an uncooled multi-stage axialflow compressor. The pressure reached in the centrifugal compressor is preferably that above which cooling does not offer any advantage for the entire plant. The axial-flow compressor may be mounted on a separate shaft and run at a higher speed than the centrifugal compressor. The latter may be of the doubleflow type. The compressor may supply combustion air to a gas turbine, and an exhaustgas preheater may be employed to heat the air ahead of the turbine. The Specification as open to inspection under Sect. 91 comprises also mathematical formulµ for determining that value of the pressure reached in the centrifugal compressor above which cooling does not result in increased overall efficiency of the entire plant. This subject-matter does not appear in the Specification as accepted.
Patent GB-818654-A (GB)
Title: Tracer control system
IPC: B23Q35/123
Filed: 1957-05-07
Abstract: 818,654. Copy-turning. BENDIX AVIATION CORPORATION. May 7, 1957 [May 25, 1956], No. 14524/57. Class 83 (3). [Also in Group XXXVIII] In a copying-lathe where the movements of the tool follow the contour of a template by means of an electric-feeler, the cross-feed motor is fed directly with the amplified feeler signal while the longitudinal-feed motor input is a constant voltage modified by the feeler signal, so that changes in the contour of the template cause the longitudinal feed of the tool to be reduced or stopped or reversed. A workpiece 10, Fig. 1, is rotated by an electric motor 16, and the tool 18 is fed longitudinally by a hydraulic motor 36 and transversely by a hydraulic motor 30. The feeler 42, connected by an adjustable linkage 40 to the tool 18 and co-operating with a template 46, provides a signal dependent on its displacement, which is amplified at 78 and fed firstly through amplifiers 148, 152 and phase-sensitive detector 150 to servo-valve 154 controlling the speed and direction of motor 30, and secondly through full - wave rectifier 86 and keyer 94 to give a signal whose phase is independent of the feeler-signal and whose magnitude is proportional to the feeler-signal combined with a signal of opposite phase from a tacho-generator 116 rotating with the work to feed via amplifiers 132, 136 and phase-sensitive detector 134, the servo-valve 138 controlling the speed and direction of motor 36. Each motor 30, 36, also drives a tacho-generator 146, 128, producing a feedback voltage across resistors 158, 126, to balance the driving signals. Thus the speed of the motor 36 is reduced when the feeler is deflected in either direction from its normal position, a very large feeler-signal causing a relay in stop-circuit 160 to be energized, closing normally-open contacts 182, which short-circuits the signal to the motor 36. A reversing switch 84 is supplied, whereby the inputs to the servo-control circuits for the longitudinal and cross-feed motors may be reversed. The cutting speed is shown to be approximately constant. The feeler 42, Fig. 2, has a ball-bearing race 44 at its tip, carried by a shaft 48, the far end of which rests in a conicalhole 54 in a spring-biased block 56, having an extension rod 64 carrying an armature 66 for a differential transformer 68. Deflection of the tip 44 causes the block 56 to be moved, thereby displacing armature 66 to produce an output signal from the secondary windings of the transformer 68 indicative of the extent of movement of the tip 44. The tool is first fed automatically towards the work, without longitudinal feed, but when the tracer is deflected by the template the longitudinal feed is started. The longitudinal and cross-feeds then continue at variable speeds to give a constant cutting rate, and a sufficiently large signal from the tracer, caused by a re-entrant on the template, reverses the longitudinal feed. For face-plate copying, reversing switch 84 is thrown to the opposite side.