baber/WOPTO huggingface dataset:
Patent GB-157578-A (GB)
Title: Improvements in and relating to the preparation and manufacture of di-ethyl sulphate
IPC: C07C305/08
Filed: 1919-10-30
Abstract: Diethyl sulphate is prepared by passing ethylene in great excess into sulphuric acid containing 80-100 per cent H7SO4 or into oleum containing up to 90 per cent SO3 at a temperature not exceeding 120 DEG  C.  Ethyl hydrogen sulphate is first formed, and this is converted into diethyl sulphate by containing the introduction of ethylene until the weight of the reaction mixture has increased by at least 20 per cent of the weight of sulphuric acid present.  Ethyl hydrogen sulphate prepared in any known manner may be used in the first instance as the absorbent for the ethylene.
Patent GB-305524-A (GB)
Title: Improvements in the propulsion of ships
IPC: F01D15/02
Filed: 1928-09-18
Abstract: 305,524. Akt.-Ges. Brown, Boveri, et Cie. Feb. 6, 1928, [Convention date]. Driving arrangements. - In arrangements for propelling ships comprising ahead and astern steam turbines coupled together with a reciprocating engine to a common propeller shaft, live steam is supplied directly to the astern turbine or the ahead turbine for braking the latter when reversing the reciprocating engine. The propeller shaft d is driven by the reciprocating engine a and the ahead and astern turbines ' f, g. The exhaust steam pipe m communicates with the turbines through the reversing valve l and the pipe o, u. The valve l is operated by the pressure oil auxiliary engine h controlled by the valve q. The live steam supply to the turbines is controlled by the valve u. Lever arrangements are described by co-ordinating the movements of the reversing-lever for the reciprocating engine with those of the lever controlling the valve u.
Patent GB-145333-A (GB)
Title: Improvements in and connected with the tyres of motor cars and other vehicles
IPC: B60C5/20
Filed: 1919-11-01
Abstract: 145,333. Blakoe, R. Nov. 1, 1919. Air tubes and chambers. - An air-tube comprises side chambers C, C<1> the air in which is compressed on inflation of the main central chamber B.
Patent GB-302003-A (GB)
Title: Improvements in receptacles for memoranda, documents or the like, or closure devicestherefor
IPC: A45C15/08
Filed: 1927-10-11
Abstract: 302,003. Dannan, C. B. Oct. 11, 1927. Time-checking apparatus, check and token.- Relates to lid fastening means for receptacles in which workmen's tokens &c. are adapted to be freely inserted up to a specified time, whereupon the closing of the lid stops a timepiece. The main lid 3 of a receptacle 1 carries a main locking bolt 4 urged by a spring 7 to releasing position and adapted when shot by a pin 8 to engage an aperture 6 in the mouth 2 of the receptacle and at the same time to move knobs 16 and stop a pair of stop-watches 15. A spring-pressed sliding member 11 engages behind the bolt 4 when shot. The pin 8 projects through a slot 9 in an auxiliary lid 10 provided with a snap bolt 19 having a hole 21 so that an instrument inserted through a slot 20 in the auxiliary lid can retract the bolt 19. To prevent tampering a marked card is placed over the bolt 19 across the part marked 23. A catch 8<a> engages the pin 8 in the retracted position.
Patent GB-1368697-A (GB)
Title: Circular knitting machine with patterning mechanism
IPC: D04B15/78
Filed: 1973-05-10
Abstract: 1368697 Knitting machines T F ST C LANGHAM 10 May 1973 [9 June 1972] 26917/72 Addition to 1358381 Heading D1C In the circular multifeed knitting machine of Specification 1358381, slidable knit and tuck cam means KC and TC at each butt level are provided which can be projected against spring action to displace pattern butts and cause needles to knit or tuck by two sliders 20, 20' actuated by a rotary cam 11 and selectively operable by knit and tuck levers 22, 22' retained inoperate in contact with the rotary cam and selectively operable from patterning equipment via pulsing circuitry to determine which slider will engage a formation on the rotary cam. Cams 11 are splined onto a drive shaft and their associated levers 22, 22' are pivoted on adjacent pins 23, 23'. Limbs 22a, 22a' of levers 22, 22' are connected by springs 24, 24' to cams KC and TC respectively and have curved tips 22c, 22c'. Tip 22c engages a recess 20a in slider 20, passing freely through a long recess 20a' in slider 20', and tip 22c' engages a recess 120a in slider 20' and 120a' in slider 20. Limbs 22b, 22b' are disposed in spaced planes and are biassed to engage two separate tracks on cam 11 by springs 24, 24' carrying respectively pole pieces 27, 27'. Permanent magnetic yokes 25, 25' with coils 26, 26' hold pole pieces 27, 27' unless a pulse is applied to the coils when the lobe 22d, 22d' of the lever 22, 22' is opposite a recess 11b, 11b'. The corresponding spring 24, 24' will then pull the pole piece 27, 27' away and the corresponding slider 20, 20' will be moved to a selected position where its tail end will be engaged by a formation 11c on cam 11 to push it and its associated cam KC or TC to operative position. When released from formation llc the slider is returned to reset position by spring 24 or 24' and to home position by formation 11d.
Patent GB-181672-A (GB)
Title: Improvements in or relating to wall plugs or the like
IPC: F16B13/06
Filed: 1921-10-12
Abstract: 181,672. Poirier, R. E. June 16, 1921, [Convention date]. Sockets and plugs for nails.-A device for fixing articles of any kind to artificial or natural masonry comprises a soft metal cup 14 having a tapered mouth which is preferably slotted at 10, and a conical plug 3 of plastic or hard material, for example e agglomerated cork, which when the device is inserted in a hole in the masonry causes the plug to expand and grip the masonry sufficiently to hold light articles, for example by means of a screw 16.
Patent GB-1194245-A (GB)
Title: Improvements in and relating to Over-Load Protective Cut-Outs for Electric Motors.
Inventor: BEALE MICHAEL DAND
IPC: H02K11/00
Filed: 1967-06-12
Abstract: 1,194,245. Mounting electric motors. ALFRED CROMPTON AMUSEMENT MACHINES Ltd. 13 March, 1968 [12 June, 1967], No. 26995/67. Heading H2A. [Also in Division H1] In an electric motor drive system comprising an electric motor having a rotor rotatable in a stator and a rotatable driving member driven by the rotor, the stator, under overload conditions, is caused, by a reaction force set up by the load and acting through the driving member, to swing about a pivotal mounting and actuate a cut-out switch which disconnects the motor from its supply. As shown, an electric motor 1 mounted on a pivotal bearing 3 drives a load 7 through a belt drive 6, excessive overloading causing sufficient tension in the belt to turn the motor on its bearing 3 as to open a normally closed cut-out switch 8 and deenergize the motor. In a modification (not shown) a pinion on the rotor shaft drives a load through a gear-wheel coaxial with the pivotal bearing 3, overloading in this case causing the pinion to climb round the gear-wheel so that the stator moves to open the switch 8. In a second modification (not shown) the switch is a gravity-biased switch mounted on the stator.
Patent GB-1140182-A (GB)
Title: Burnishing tool
IPC: D01D4/02
Filed: 1967-06-12
Abstract: 1,140,182. Sizing bores of tubes. ALLIED CHEMICAL CORP. 12 June, 1967 [22 Sept., 1966], No. 27022/67. Heading B3H. A tool for burnishing spinneret capillaries has a holding portion 12 adapted to be inserted into a drill and at least two burnishing elements 13, 14 preferably spaced apart by one capillary length.
Patent GB-838832-A (GB)
Title: Improvements in or relating to the treatment of the hair of human heads
IPC: A45D20/22
Filed: 1958-08-25
Abstract: <FORM:0838832/IV(c)/1> In treating human hair on the head, e.g. when washing, dyeing, bleaching or waving, the head is covered by a hood and subjected simultaneously to the action of ozone and heat generated directly above the head inside the hood.  As shown, a hood 1 open at its lower end is adjustably mounted on a stand 2.  The upper part of the hood is separated from the lower part by a grating 9 and contains a silent discharge ozone generator 4, annular heating elements 5 and a blower comprising a motor 6 and an axle 7 carrying blades 8.  Air enters the upper part of the hood through louvres 11. A regular 10 controls the current to the ozone generator and thus determines the amount of ozone generated.
Patent GB-1213437-A (GB)
Title: X-ray film cassette
IPC: G03C3/00
Filed: 1969-05-29
Abstract: 1,213,437. X-ray film cassettes. AGFAGEVAERT A.G. 29 May, 1969 [4 Dec., 1968], No. 27203/69. Heading H5R. In an X-ray film cassette the film 6 is enclosed between two backing foils 4 and 5 which are connected together along one edge by a tape 8 to form a book-cover-like arrangement, the film and backing-foil assembly being supported in a tray formed by a base-plate 2, e.g. of plastics material, to which the foil 5 is secured, and having upstanding edges 3 along at least three of its sides, the whole being disposed within an envelope 1 made of a laminated structure formed by aluminium foil with plastics material on each side, the evelope being light-proof, gasproof, and flexible, and being evacuated and heat-sealed subsequent to the introduction of the film-holding assembly. For X-ray photographs taken downwards, a lead foil may be included between the inner surface of the baseplate 2 and the adjacent backing foil. Preferably, the plastics layer outside the aluminium foil is a regenerated cellulose film having an outer layer of vinyl chloride-vinylidene chloride copolymer, and that inside the aluminium foil is a polyethylene film, to permit heat sealing. The aluminium foil may be 0À012 to 0À020 mm. thick.
Patent GB-444586-A (GB)
Title: Improvements in or relating to airscrews for aircraft
IPC: B64C11/04
Filed: 1934-09-21
Abstract: 444,586. Air-screws. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and OWNER, F. M., Filton House, Bristol. Sept. 21,1934, No. 27225. [Class 114] [See also Group XXII] The root 11, Fig. 1, of an air-screw blade of comparatively soft metal is reinforced by a screwed sleeve 13 of harder metal which is shrunk on so that it grips the blade root over the whole of the co-operating screw-threads. The sleeve and the blade may be of steel and an aluminium or magnesium alloy respectively, and the interengaging surfaces may be coated with a thin layer of protective material such as copper, tin, or oil to prevent " fretting." The steel sleeve is provided with a flange 14 which may be detachable and which serves as an abutment for the nut 16 or a thrust bearing 19, Fig. 3. British Specification 444,587 and U.S.A. Specification 1,860,522 are referred to.
Patent GB-1275516-A (GB)
Title: Clamping device
Inventor: HAWRANEK ERICH
IPC: B65H75/24
Filed: 1970-06-05
Abstract: 1275516 Securing reels on spindles KABEL. UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 5 June 1970 [13 June 1969] 27245/70 Heading F2U [Also in Division E2] A clamping device for securing a tape reel comprises a plate, a portion having a polygonal outline upstanding therefrom and a spring band surrounding the upstanding portion and having a plurality of clamping blocks fastened to it so as to be radially resilient. The plate 1 has a square shaped upstanding portion 2 around which passes the spring band 4, the comers of the portion 2 being undercut to accommodate the band. The clamping blocks 6 secured to the band slide in slots 3 in the plate 1. Alternatively the upstanding portion 2 has the shape of an equilateral triangle and the spring band carries three clamping blocks.
Patent GB-1118732-A (GB)
Title: Elastomeric materials composed of segmented linear urea/urethane polymers
IPC: C08G18/10
Filed: 1965-06-29
Abstract: An elastomeric filament or film is composed of a linear segmented urea/urethane/ether copolymer having an inherent viscosity of at least 3.0 when dissolved in 60% phenol and 40% tetrachloro ethane and comprising 5-25% of urea segments composed of one or more repeating units (I) -A-NH-CO-NH-D-NH-CO-NH which may be interspersed with one or more repeating units (II) -ANHCONH-, where A is the divalent radical of a functionally aliphatic diisocyanate OCN-A-NCO, and D is the bivalent organic radical of a functionally aliphatic hindered (defined) diamine NH2-D-NH2, (A and D being such that a polyurea consisting solely of repeating units (I) and having a M.W. > 104 would have a M.P. of at least 200 DEG  C.), the terminal A of each of said urea segments being linked to the -NH- of a urethane linkage -NHCO-O-, the -O- of which is attached to the residue P of the polyether HO-P-OH, and the terminal NH of each urea segment being linked to the A of a urethane linkage, the -O- of which attached to another P residue.  An oligomer of up to 11 P residues linked together by -OCONHA-NHCO- linkages may be used instead of the polyether itself.  The polyether glycol has a M.P. below 50 DEG  C. and a M.W. 600-10,000. The segmented polymers may be formed in a solution suitable for spinning or casting, by the method of Specification 1,118,731, using appropriate starting materials and proportions.  The features of Specifications 1,118,602, 1,118,735, 1,118,736 and 1,118,737 may be used in this invention if desired. Preferred hindered diamines used in the examples are: 2,2,4,4-tetramethyl-1,3-cyclobutanediamine; N,N1 - bis - (3 - amino - 2,2,4,4-tetramethyl-1,3-cyclobutyl oxamide; amine terminated copolyamide of dimethylmalonic acid and 2,2,4,4-tetramethyl-1,3-cyclobutanediamine; 1,8-methane diamine; 2,2-dimethyl-1,3-propanediamine; diaminoneopentane.
Patent GB-960165-A (GB)
Title: Improvements in or relating to compound rotary-anode plates for x-ray tubes
IPC: H01J35/10
Filed: 1961-07-28
Abstract: A compound rotary-anode plate for X-ray tubes has a target surface composed of an alloy consisting of .tungsten.not less than 50% ..by weight .a metal having a. .M. Pt. greater than. ..balance .3000  DEG C.. .e.g. rhenium.
Patent GB-951762-A (GB)
Title: Improvements in fluid flow indicator
Inventor: BENCH ROBERT HENRY
IPC: G01F1/22
Filed: 1959-08-12
Abstract: 951,762. Fluid flowmeters. ALAN MUNTZ & CO. Ltd. June 29,1960 [Aug. 12, 1959], No. 27619/59. Heading G1R. A fluid flow indicator comprises a ball 17 within a tube 10 which is at least partly transparent to show the ball, has inlet 12 and outlet 11 connections at its ends and has its bore tapered outward in a substantially smooth curve from inlet to outlet ends. The tube 10 may be of methyl methacrylate and the ball solid or hollow and of steel, wood or plastic. Two or more balls may be used to move up the tube and extend the range of flow indicated. A dimensional example is given in which the tube bore has a straight taper up to the line 13 and a flared curve up to a counter bored top section 15 whereby measurements can be made over a range of flow rates having an 80 to 1 ratio of maximum to minimum, using a logarithmic scale.
Patent GB-679897-A (GB)
Title: Improvements in airplane construction
Inventor: DELANNE MAURICE
IPC: B64C39/00
Filed: 1950-11-13
Abstract: 679,897. Tandem-wing aircraft. PARDEL DEVELOPMENT CORPORATION. Nov. 13, 1950, No. 27646/50. Class 4. An aircraft has an upper front wing and a lower rear wing arranged relative to each other so that the vertical distance-expressed in centimetres-between the projections of the aerodynamic centres of said wings on to the plane of symmetry of the aircraft is between 76 and 92 times #S/14 wherein S designates the total area of said wings-expressed in square metres. The front wing 10 is staggered with respect to the rear wing 11, both wings preferably being of Delta-shape. The wings are arranged so that the vertical distance V, expressed in centimetres, between the projections 18 and 19 of the aerodynamic centres 20 and 21 respectively of the wings 10 and 11 on to the vertical plane containing the longitudinal axis 15 of the fuselage 12 is about 85 times #S/14. The front wing 10 forms a positive angle of incidence a of about 2 degrees while the lower rear wing 11 forms a negative angle of incidence b of about , 75 degrees. Further, the projection onto the said vertical plane of the line 22 connecting the aerodynamic centres 20 and 21 forms an angle c of between 16 and 24 degrees, preferably about 20 degrees, with the projection on to the vertical plane of the mean chord 23 of the upper front wing 10. The distance A between the projections 18 and 19 of the aerodynamic centres 20 and 21 is equal to between 1.5 and 3 times, preferably 2.25 times, the length of the mean chord 23. Two embodiments of aircraft having wings so arranged are described, one having a turbojet power unit and the other a turbo-prop unit.
Patent GB-1504109-A (GB)
Title: Device for conveying a leading edge of a metal belt to a real drum
IPC: B65H20/18
Filed: 1976-07-02
Abstract: 1504109 Guiding web ends to apparatus SUNDWIGER EISENHUTTE MASCHINENFABRIK GRAH & CO 2 July 1976 [7 Feb 1976] 27738/76 Heading B8R A device for guiding the leading end of a metallic strip 1 to the slot 7 of a binding drum 6 comprises a carriage 9 movable between a slitter 8 and the drum and provided with clamp means 2, 2a and leading end aligning means 3, 3a, the clamp means and aligning means being movable independently of one another. In operation the leading end of the strip 1 is fed between the clamp means 2, 2a to head 4a of an element 3a, whereupon the clamp means are closed and the heads 4, 4a, of the aligning means brought together to position (intermediate carriage position) where the leading end projects slightly forwardly of the heads. During insertion of the leading end into the slot, the aligning elements are retracted different amounts by abutting the drum periphery. The upper clamp 2 is movable towards the fixed lower clamp 2a and the aligning elements 3, 3a are movable and adjustable independently of one another.
Patent GB-315630-A (GB)
Title: Improvements relating to canvas and like hose pipes
IPC: B29D23/00
Filed: 1928-09-27
Abstract: 315,630. Russell, J. Sept. 27, 1928. Hose pipes.-A canvas &c. hose pipe is rendered waterproof and rot-proof by forcing under pressure into the fibres of the canvas a solution prepared by dissolving rubber in naphtha or other suitable solvent.
Patent GB-767773-A (GB)
Title: Improvements relating to the manufacture of stators for motors
Inventor: STEIN ROBERT ARTHUR
IPC: H02K15/02
Filed: 1954-09-27
Abstract: 767,773. Making dynamo-electric machines; casting composite articles. GLOBE INDUSTRIES, Inc. Sept. 27, 1954, No. 27815/54, Classes 83 (1) and 83 (2). [Also in Group XXXV] In a method of making an electric-motor stator, Fig. 12, with radial magnets 46, a blank 20, Fig. 3, of ferromagnetic material comprising the polepieces 42 joined by intermediate material to be subsequently removed, is attached to non-magnetic material, and a central hole 43 is formed to divide the blank into the two polepieces 42. The blank may be cut from a bar having facets 12, Fig. 2, for seating the magnets 46, and is formed with dovetails 28 and grooves 22 and finally copperplated for subsequent casting as an insert in a a mould for aluminium end-members 30, 32. The cast assembly is then machined and the hole 43 drilled and reamed to size. Finally, the recess 48 for the bearing and the hole 41 for the shaft are drilled. The end-members may alternatively be of brass or bronze or other non-ferromagnetic alloy and may be brazed to the member 20.
Patent GB-388111-A (GB)
Title: Improvements in or relating to sound recording systems
IPC: H03G5/04
Filed: 1932-06-27
Abstract: 388,111. Sound-recording circuits. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A., and KEITH, C. R., 4, Arcade House, Finchley Road, London. June 27, 1932. No. 27895/31. [Class 40 (iv).] To remove extraneous low frequency noises from recorded sounds, a low frequency filter is included in the recording circuit, the filter reducing, but not eliminating, the low frequencies. As described the filter, which comprises a resistance 3a shunted by two inductances 3b, 3c is placed in the circuit between the input volume control device 1 and the amplifier 2. One or both the inductances can be cut out as required by the operation of switches 3e, 3d. Details of suitable values and of results obtained are given in the Specification.
Patent GB-683251-A (GB)
Title: Process for improving dyeings on cellulosic fibres
IPC: D06P1/66
Filed: 1950-11-15
Abstract: Peralkylation products of straight-chain alkylene imine polymers are prepared by exhaustive alkylation of the polymer, e.g. by methylation of an ethylene imine polymer.ALSO:The fastness of dyeings on cellulosic fibres, prepared by means of a dyestuff which is brought on to the fibre in a water-soluble form but is rendered less soluble by a treatment on the fibre, is improved by a treatment with a peralkylation product of a polymerisate of an alkylene imine. Treatments to render the dyestuff less soluble include oxidation in the case of sulphur dyes and diazotization and development, combination with a diazo compound, treatment with formaldehyde and treatment with a metal salt in the case of azo dyes.  The peralkylated polymerized ethylene imine may be added to the after-treatment bath used to decrease the solubility of the dyestuff on the fibre.  Examples are given in which the following dyeings are treated with the peralkylation product (1) and (2) a sulphur dyeing oxidized on the fibre, (3) a direct dyeing diazotized and coupled on the fibre, (4) a direct dyeing coupled on the fibre with a stabilized diazo compound, (5) a direct dyeing after-treated with formaldehyde, and (6) a direct dyeing after-treated with copper sulphate.
Patent GB-265894-A (GB)
Title: Improvements in or relating to spring foundations far upholstery
IPC: A47C7/28
Filed: 1926-11-08
Abstract: 265,894. Brandreth, V. G. Nov. 8, 1926. Spring surfaces.-Resilient mattresses and seats are constructed with interlaced blade springs A, B with downturned ends which are secured to the transverse bars of hangers C, D by which the structure is mounted in the seat or mattress frame. One or more vertical upholstery springs E are positioned between the horizontal portions of the hangers and the upper blade springs. The hangers can be spread to suit the width of the frame and are provided with securing lugs C<2> for the attaching screws, or the lugs may have a downturned serrated edge for driving into the frame.
Patent GB-228833-A (GB)
Title: Improvements in smokers' ash trays
IPC: A24F19/00
Filed: 1923-11-07
Abstract: 228,833. Bulman, L. T. Nov. 7, 1923. Ash-trays; cigar and cigarette rests.-A conical tray 1 having a deep central ash-bowl 2 and provided with recesses 6 constituting cigar or cigarette rests is formed with an obliquely extending flange 3 having a beaded edge 4 and enclosing an annular space 7. The width of the space 7 is such that a burning cigar or cigarette placed across it will, as it is consumed, fall upon the flange 3. The Provisional Specification also describes a tray comprising a central cup-shaped portion having an external flange at or near its base.
Patent GB-297232-A (GB)
Title: Improvements in cranks for use chiefly on cycles
IPC: B62M3/00
Filed: 1927-10-22
Abstract: 297,232. Grew, W. F. Oct. 22, 1927. Cranks.-A crank for cycles &c. consists of a sheet-metal pressing or stamping 2 of open channel section, in each end of which is secured by welding or otherwise a filling-piece 6, 8, which is thereafter drilled at 7, 9, 10. The crank tapers towards the small end in both thickness and width. One or more strengthening-webs 11, either integral with the body of the crank or attached by welding,. may extend across the open mouth of the channel.