baber/WOPTO huggingface dataset:
Patent GB-1500568-A (GB)
Title: Device for destroying flying insects
IPC: A01M1/04
Filed: 1975-08-05
Abstract: 1500568 Destroying flying insects C RUEFF 5 Aug 1975 [5 Aug 1974] 32746/75 Heading A1M A device for destroying flying insects comprises a casing 10 open at both ends and housing an electric motor 11 with a shaft 18, on which is fixed a rack 24 with teeth 23 which pass on rotation with the shaft 18 between teeth 21 of a stationary rack 20, insects being drawn into the racks by a fan 32. A tubular lamp 31 carried by an annular support and screen 27 may be provided to attract the insects and the light may be infrared or ultra-violet. The rotatable rack may have its teeth arranged on a bar or alternatively the teeth (44), Fig. 3 (not shown), may be formed on the edges of propeller blades (43). The teeth of both the rotary and stationary racks may be arranged in parallel planes oblique to the longitudinal axis of the shaft 18. As shown the casing 10 may be pivotally mounted on a support 37.
Patent GB-889307-A (GB)
Title: Improvements in or relating to processes for the production of uranium oxide
Inventor: GIBSON ALLAN ROBERT
IPC: C01G43/025
Filed: 1959-09-25
Abstract: Purified uranium dioxide is prepared by suspending crude uranium oxide in a fused alkali or alkaline earth metal chloride melt, completing chlorinating the melt by passing in chlorine in the presence of carbon to convert the uranium values to tetrachloride, converting this to uranyl chloride by contacting the melt with oxygen and finally selectively precipitating uranium dioxide by contacting the melt with hydrogen.  The uranium dioxide so precipitated may be removed from the bottom of the melt or alternatively the supernatent melt may be purified by electrolysis whereby impurities in the melt are deposited on a removable cathode; the uranium dioxide precipitate may then be taken back into the thus-purified melt by passing in chlorine to convert the dioxide to soluble uranyl chloride, after which the melt may be subjected to electrolysis to recover uranium dioxide as a deposit on a further removable cathode.  According to an example, a uranium ore concentrate was calcined at 300 DEG -400 DEG C. and then fed into a sodium chloride-potassium chloride eutectic melt at 860 DEG C., chlorine being injected through a silica tube passing through the centre of a finned carbon block.  After formation of uranyl chloride, the reducing block and tube were removed and air was injected through a further silica tube while maintaining the melt at 860 DEG C.  Hydrogen gas was then admitted at 860 DEG C. whereby uranium dioxide settled and could be removed and if desired subjected to electro-refining in a separate melt containing uranyl chloride, the oxide forming an anode of the cell and being deposited on a suitable cathode on electrolysis at 0,01 to 0,05 volts.  Preferably however the uranium dioxide precipitate is left to settle from the melt and the melt purified by arranging a molybdenum plate cathode and a graphite rod anode with a central hole for hydrogen injection. The melt may then be electrolysed at 4 volts at a temperature of 880 DEG C., a gentle stream of hydrogen maintaining the iron and other metals in the lowest valency state. The cathode, containing attached deposited impurities is then removed and chlorine passed in through a fluted silica tube to reconvert the remaining dioxide back into solution as uranyl chloride, after which two vertical graphite plate electrodes are introduced into the melt and current passed at a potential rising to 1,9 volts, whilst maintaining the temperature at 870 DEG C. Uranium dioxide is deposited on the cathode from which it can be detached on removal of the cathode from the melt, by leaching with water.  The uranium dioxide so produced is washed successively with hot water, acetone and diethyl ether.  Uranium remaining in the melt is in the form of the tetrachloride.  The melt may be recycled.
Patent GB-1370078-A (GB)
Title: Copolymerisation of vinyl chloride
IPC: C08F2/02
Filed: 1972-07-13
Abstract: 1370078 Polymerisation apparatus SOLVAY ET CIE SA 13 July 1972 [13 July 1971] 32814/72 Heading B1X [Also in Division C3] A fluidised bed reactor for use in copolymerising vinyl chloride and a comonomer boiling below -40‹C in a fluidised bed of inert material at 40-80‹C and a vinyl chloride partial pressure below the saturated vapour pressure of vinyl chloride comprises reactor 1, means 16, 25, 26, 6 for supplying gaseous monomers as fluidising gas to a bed of inert material in the reactor, means 14, 8 for supplying liquid monomer to the reactor at a rate responsive to the temperature in the reactor and means 11, 12, 22 for maintaining the pressure in the reactor constant by adjusting the rate of feed of cooling water to the condenser 13 in response to the pressure measured by means 22. The composition of the reactants inside the reactor may vary, e.g. due to the introduction of liquid monomer to control the temperature and/or the recycle of reactor effluent of varying composition and the composition of the reactants is maintained constant at any stage of the reaction, by analysis of the effluent, e.g. by chromatographic means, which is then used to control the composition of the monomer feed. The reaction is otherwise effected as described in Specification 1,124,237.
Patent GB-1273765-A (GB)
Title: Stitch-bonded fabric
Inventor: HORENI BOHUMIL
IPC: D04B21/14
Filed: 1969-06-30
Abstract: 1,273,765. Stitch bonded fabrics. STATNI VYZKUMNY USTAV TEXTILNI. 30 June, 1969 [6 Aug., 1968], No. 32975/69. Headings D1, C, K and R. A stitch-bonded fabric consists of a fibrous web having a specific weight up to 600g/sq.m reinforced by at least one system of binding threads in any arbitrary warp stitch construction, the number of courses per 10 cm being at least equal to N where B is determined by the equation where G=specific weight in g/sq.m of the fibrous web to be processed T=binding thread titre in denier γ=specific gravity in g/cucm of the fibres in the web m=the filling coefficient of at least 0.4 α=a constant which with the fibrous web weight up to 200g/sq.m equals zero whilst with the fibrous webs of weight range of from 200 to 600 g/sq.m is determined by the equation α=0.002G-0.4. Fig. 9a shows a stitch bonding arrangement in which the fibrous web 4 is passed by a conveyor 4 between a stationary table 11 and a web holder table 12 to cross the path of needles 14.
Patent GB-1182379-A (GB)
Title: Improvements in or relating to a Mechanical Oscillator
Inventor: MEYER HANS
IPC: G04B17/04
Filed: 1968-07-12
Abstract: 1,182,379. Clocks and watches. H. MEYER. July 12, 1968 [Aug. 2, 1967], No.33470/68. Heading G3T. A mechanical oscillator particularly for regulating a timepiece, comprises a rotor 2 mounted to oscillate about an axis M and connected to a support member 1 by at least two springs 3, 4 crossing each other at the axis M and each having one end fixed to the support member 1, as by a platelet 5 and a screw 6, and the other end fixed to the rotor 2 at the other side of the axis M. Two mutually perpendicular springs 3, 4 only are provided in the embodiment illustrated in Fig. 1, in which the oscillations are maintained by an electromagnet 11 co-operating with two projections 2a on the rotor 2. Alternatively three springs may be provided spaced angularly at 120 degree intervals. In a further embodiment two oscillators. having parallel axes are driven by a single electro-magnet, and in another two oscillators are arranged coaxially.
Patent GB-1505942-A (GB)
Title: Water soluble azo dyestuffs
IPC: C09B62/825
Filed: 1976-08-12
Abstract: 1505942 Water soluble azo sulphonic acid half ester dyes BAYER AG 12 Aug 1976 [16 Aug 1975 19 Dec 1975] 33619/76 Heading C4P [Also in Division C2]  Novel azo dyes, in the form of the free acid, have the formula  in which R 1  denotes a hydrogen atom or a nitro, cyano, SO 2 -R 7 , CONR 8 R 9 , SO 2 NR 8 R 9 , SO 2 OR 10 , COOR 10 , sulpho or optionally substituted alkyl group, R 2  denotes a hydrogen or halogen atom, a nitro group or an optionally substituted alkyl, alkoxy or aryl group, R 3  denotes a hydrogen or halogen atom or a SO 2 -R 7  or SO 2 -NR 8 R 9  group or an optionally substituted alkyl, alkoxy or aryl group, R 4  denotes a hydrogen or halogen atom or an optionally substituted alkyl, alkoxy or aryl group. R 5  denotes a hydrogen atom or an optionally substituted alkyl group, R 6  denotes an alkylene radical, R 7  denotes an optionally substituted alkyl, aryl or aralkyl group, R 8  and R 9  independently denote a hydrogen atom or an optionally substituted alkyl, cycloalkyl, aryl or aralkyl group or the radical of heterocyclic compound or, together with the nitrogen atom to which they are attached, complete a heterocyclic structure, R 10  denotes a hydrogen atom or an optionally substituted alkyl, aryl or aralkyl group, R 11  denotes an optionally substituted alkyl, aryl or a dialkylamino group and n is 1 or 2 and the radical is in the ortho-position or para-position relative to the azo group. The dyes are prepared by diazotization and coupling with an appropriate phenol, followed by alkylation with an alkylene oxide and reaction of the terminal hydroxy group with sulphuric acid or oleum. The dyes may be used for dyeing and printing natural and synthetic fibres containing amide groups, e.g. wool, silk and poly-#-caprolactam or the reaction product of hexamethylene diamine with adipic acid.
Patent GB-1041523-A (GB)
Title: Treatment of polymers
Inventor: HOFTON JAMES
IPC: C08G2/00
Filed: 1964-08-18
Abstract: The thermal stability of an oxymethylene polymer is improved by reacting with ethylene imine or an N-substituted ethylene imine. Specified imines are polyethyleneimine, 1-6-hexa - methylene - di - (N,N1 - ethylene urea), ethylene urea, 4-41-diphenyl-methane di-(N,N-ethylene urea), phosphoric triethylene imide and the compound of formula <FORM:1041523/C3/1> The imine may be present in amount from 0.01 to 20% based on the polymer, the reaction may take place in solution, e.g. in dimethyl formamide and the polymer may be a copolymer with the usual comonomers, e.g. cyclic ethers and styrene.
Patent GB-1236282-A (GB)
Title: Improvements in or relating to the pre-oxidation of thermally resistant aromatic polymers
Inventor: HIRSCH STEPHEN SIMEON
IPC: D01F9/30
Filed: 1968-07-15
Abstract: 1,236,282. Polyamide filaments. MONSANTO CO. 15 July, 1968, No. 33726/68. Heading B5B. [Also in Divisions B5 and C3] Thermally resistant wholly aromatic polyamides in the form of films, fibres, fabrics, webs, foams and other shaped articles having similarly high surface: volume ratio are pre-oxidized by heating in air from room temperature to a temperature between 350‹ and 500‹ C. but below that at which structural identity and strength are lost over a period between 45 and 60 minutes and maintaining the polyamide at that temperature for up to 12 hours. Various polyamide, some of which contain heterocyclic rings, are mentioned. The treated articles may be used for flameproof applications, e.g. heat shields, high temperature and electrical insulation, protective clothing and curtains, hot filtration media and supports for ablative materials; they may also be used as precursors for carbon and graphite fibres. In examples poly-mphenylenebis (m-benzamido) terephthalamide and polymers having the repeat unit are treated in the form of fabric or yarn.
Patent GB-1117527-A (GB)
Title: Thermoplastic sheet
Inventor: KOMOLY THOMAS JOHN
IPC: B29C48/08
Filed: 1965-08-06
Abstract: 1,117,527. Corrugating thermoplastic sheet material; laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 July, 1966 [6 Aug., 1965], No. 33736/65. Headings B5A and B5N. A longitudinally corrugated sheet is given additional transverse corrugations or undulations by passing the sheet between two stations which are reciprocated relative to each other. In the embodiment shown in Fig. 1, a longitudinally corrugated sheet 1, from a fixed extruder 2, is passed between laterally reciprocating clamping members 9, located in a cooling bath 3, the resultant longitudinally corrugated and undulating sheet being drawn out of the bath over rollers 4. In the embodiment shown in Fig. 4, an extruded sheet is wound from roll 1, heated at 12, longitudinally corrugated between rolls 13, laterally corrugated by a vertically reciprocating bar 15 and finally cooled by air blasts at 17. In a third embodiment, see Figs. 6 and 7 (not shown), a longitudinally corrugated sheet is extruded from a transversely reciprocated die and flat cover sheets extruded on to it. The sheets can be made of polyethylene; polypropylene; poly-4-methylepentene-1; polyvinyl chloride; polymers and copolymers of styrene, e.g. styrene/maleic anhydride copolymers; polymethyl methacrylate; copolymers of methyl methacrylate with acrylic acid and alkyl acrylates; polyoxymethanes, polycarbonates; polyamides and polyesters.
Patent GB-966697-A (GB)
Title: Improvements in or relating to display panels, cabinets and the like
Inventor: EDWARDS JOHN THOMAS
IPC: A47B47/00
Filed: 1960-10-01
Abstract: 966,697. Furniture joints; cabinets. DAIDY ENGINEERING CO. Ltd. Sept. 28, 1961 [Oct. 1, 1960], No. 33779/60. Headings A4B and A4W. A cabinet unit comprises a number of brass tubular frame members 11a covered with a plastic sheath 11b and releasably connected together with cube shaped plugs 12. The plugs have projecting pins 12b which are held within the tube 11b by protruberances 11c within each tube engaging a peripheral channel 12b<SP>11</SP> in the corresponding pin 12b. To enable the protruberances 11c to enter the channel 12b<SP>11</SP> longitudinal channels 12c are provided on the pins 12b to engage the protruberances. Side panels are nailed within the frame members.
Patent GB-511033-A (GB)
Title: Improvements in and relating to screws and self-tapping screwdrivers
IPC: F16B23/00
Filed: 1937-12-07
Abstract: 511,033. Screwdrivers; screws. BRADSHAW, G. Dec. 7, 1937, No. 33785. [Class 61(iii)] [Also in Groups XXII and XXV] A screw 1 which can be inserted or removed only by a suitably formed tool has an axial recess comprising a plain cylindrical or slightly tapered bore 3 extending into the shank and outwardly into a flared conical portion 2 of a diameter at its open end at least equal to that of the screw shank at its junction with the head 4, the driving tool 6 having a nose or shank 7 formed with a continuous or interrupted hardened screw cutting thread 9 to engage the bore 3 in the screw and with a flange 8 having a toothed &c. clutch surface 10 of truncated conical form to engage the flared portion 2 of the screw. In the modification shown in Fig. 2 the centre bore and flared recess of the screw 13 are merged into one curved recess 15, the tool 16, Fig. 5, for use with this screw having a screw cutting thread 19 extending continuously from the nose 17 to the base part 18. The recesses in the screw heads may be closed by plugs as described in Specification 501,548.
Patent GB-321074-A (GB)
Title: Improvements in or relating to flying boats
IPC: B64C35/00
Filed: 1928-11-17
Abstract: 321,074. Fairey, C. R. Nov. 17, 1928. Cars and cabins; tanks, arrangements and disposition of.-In a flying boat hull, chines, fins or auxiliary floats bb are disposed below the centre of gravity c, g, and are made of sufficient volume and so separated from the hull a that they can accommodate the fuel supply of the aircraft. In a hull of metal construction the chines bb or the like are incorporated in the structure of the hull a whereas if the hull be a wooden one they are built on to the hull and form a housing for external fuel tanks.
Patent GB-300925-A (GB)
Title: Improvements in concrete or like slab or block walls
IPC: E04C2/38
Filed: 1928-11-19
Abstract: 300,925. Charbonnier, P. L., and Bardot, J. E. Nov. 19, 1929, [Convention date]. Building slabs, special shapes of. - Walls are formed of cor.crete slabs or blocks having one vertical edge shaped as a hollow enlargement c slotted to receive the edge of an adjacent slab and concrete grouting to form a solid junction. The slabs may be provided with keying grooves e and reinforcing bars d having bent projecting ends. The slots b may be formed in any face of the enlarged edges so that the slabs may be connected at any desired angle, and the hollows allow variation in the horizontal spacing. Door frames may be similarly secured in the slots.
Patent GB-442177-A (GB)
Title: Improvements in or relating to combination-setting and combination-change mechanisms for telegraph keyboard apparatus
IPC: H04L17/06
Filed: 1934-11-26
Abstract: 442,177. Type - printing telegraphy. GRIFFITH, R. G., Montclair, Crewes Avenue, Upper Warlingham, Surrey. Nov. 26, 1934, No. 33971. [Class 40 (iii)] A keyboard instrument for perforating strip or controlling the emission of permutation code impulses is provided with a shift key which enables each character key 15 to actuate one or other of a pair of permutation-setting frames. 1. When the key 15 is operated it depresses its selecting-bar 6 so that one or other of the projections 5, 5a, Fig. 3, acts cam-wise to depress the corresponding one of two permutation-setting frames 1, of which there is a pair for each key. One or other frame is actuated according to the position of the shift lever 8, which is controlled by the shift key and moves the bars 6 longitudinally to one or other of their selecting positions. Each frame 1 when depressed actuates a selection of the five vanes 18, Fig. 1, which transmit the motion to five further frames 20. These latter, as the cam lever 22 turns about its axis 23, are momentarily locked in their upper and lower positions by jockey teeth 24 which engage below and above corresponding teeth 25 on the frames 20. At the same time five levers 28 are set to their upper and lower positions by engagement of the arms 26, 27 with the projections 20a, 20b respectively. The levers 28 set the combiner bars 30 for controlling the transmitter contacts or punches. In a modification the bars 6 are operated by power ; each key, on being depressed, operates a pawl which clutches a continuously rotating ratchet and thereupon actuates the corresponding bar 6, Fig. 4 (not shown). The upper two vanes serve for shifting and tripping as described in Specification 439,745.
Patent GB-962228-A (GB)
Title: Process for the production of alkali metal borohydrides
IPC: C01B6/00
Filed: 1960-10-04
Abstract: In the production of alkali metal borohydrides by reacting an alkali metal borate with hydrogen and an alkali metal at above 100 DEG  C., the alkali metal borate is heated with silicon oxide coarser than 60 microns in a worm device to a temperature of 200 DEG  to 350 DEG  C. and then in a second stage, in a double paddle worm device, adding to the hot reaction mixture under a hydrogen atmosphere, a liquid alkali metal and keeping the temperature at 350 DEG  to 400 DEG  C. The resulting mixture may be further heated under a hydrogen atmosphere to 420 DEG  to 450 DEG  C., to complete the reaction.  The grain size of the alkali metal borate is preferably less than 300 microns and that of the quartz between 200 and 400 microns.
Patent GB-870522-A (GB)
Title: Improvements in or relating to mixing apparatus for the preparation of concrete and the like
IPC: B28C5/16
Filed: 1958-10-24
Abstract: 870,522. Cement mixers. IBAG INTERNATIONALE BAUMASCHINENFABRIK A. G. Oct. 24, 1958 [Jan. 9, 1958], No. 34045/58. Class 86 In a stationary pan type cement or concrete mixer, stirrers 4 are resiliently carried on arms 3 depending from an iniverted cup-shaped member keyed to a shaft 16 whereon also is keyed an internally toothed gear 15, and upon the lower end of which is a cable winch drum 17 provided with clutch and brake means operated by the manual lever 11. The shaft 16 is driven by an electric motor or other prime mover 7 through a shaft 8 with couplings 9, 10; a worm and worm wheel 11; a hollow shaft 13 and sun and planet gears 12, 14 meshing with the internally toothed gear 15. The reduction gear assembly may be withdrawn and replaced as a unit by disconnecting the cap nut 16a and coupling 10 and releasing the mounting plate 6a from the base 1a of the cylinder.
Patent GB-898252-A (GB)
Title: Improvements relating to devices for use in tamping concrete
Inventor: BOWDITCH DESMOND
IPC: E01C23/01
Filed: 1959-10-08
Abstract: 898,252. Tamping concrete; trestle scaffolding. CAUSEWAY REINFORCEMENT Ltd. Dec. 21, 1960 [Oct. 8, 1959], No. 34136/59. Classes 20(2) and 107 A device for supporting a guide rail for concrete tamping means comprises a member 1 supported by legs 2 rigid therewith, a member 7 mounted within the member 1 for vertical sliding movement relative thereto and carrying a support 8 for a guide rail and releasable means for locking the member 7 to the member 1. A pair of support devices are placed at either side of a concrete area to be tamped and a guide rail for a tamping board is placed in the support 8. A similar support 9 mounted on the upper end of the member 7 enables the device to be used as a trestle or scaffolding platform support.
Patent GB-520563-A (GB)
Title: Improvements in or relating to paving blocks
IPC: E01C5/14
Filed: 1938-11-24
Abstract: 520,563. Paving blocks. EBNER, F. H. Nov. 24, 1938, Nos. 34196, and 34197. [Class 87 (i)] Wood paving blocks a are provided with interengaging horizontal or vertical tongues b and grooves c, the depth of the grooves being less than the length of the tongues so as to leave spaces d between the blocks to receive a mastic substance, or the blocks a<SP>1</SP>, Fig. 4, may have dovetail grooves c<SP>1</SP> at each end interlocked by double dovetail keys e of greater length than the combined depths of the grooves c'. The sides of the blocks are shouldered at f.
Patent GB-1012592-A (GB)
Title: Improvements in and relating to pneumatic conveying apparatus
Inventor: WARD ROLAND PERCY
IPC: B65G53/46
Filed: 1963-08-29
Abstract: 1,012,592. Pneumatic conveyers. BAKER PERKINS Ltd. Aug. 31, 1964 [Aug. 29, 1963], No. 34243/63. Heading B8A.  A rotary feeder for a pneumatic conveyer system has two or more material outlets 19, 20, each connectible to the conveying line system and spaced around the chamber 1. Axially aligned air inlets 15, 16 are arranged at the opposite end of the chamber 1 and the arrangement is such that the material in the pockets is released in two stages with the pockets becoming completely sealed when passing between the outlets 19, 20.
Patent GB-774431-A (GB)
Title: Improvements in the manufacture of extrusion products of indefinite length
IPC: B21C25/00
Filed: 1954-11-26
Abstract: 774,431. Extruding. SCHLOEMANN AKT.- GES. Nov. 26, 1954 [Dec. 22, 1953], No. 34307/54. Class 83 (4). The " bamboo " ring which is formed on extruded rods, tubes, cable sheaths and the like of indefinite length made by a discontinuously working extrusion press such as a biller extrusion press, is formed so that its plane is not perpendicular to the axis of the rod &c., by arranging the forming section of the die assembly to be wholly or partly oblique to a plane perpendicular to the extrusion axis. The " bamboo " ring may be given an elliptical, Fig. 4, or sinusoidal, Fig. 2, shape by arranging the die assembly mouth 9, 10, elliptically, Fig. 5, or with sinusoidal 12a, 13a, edges, Fig. 7. Concentric high-frequency cables with an aluminium sheath acting as one conductor may be so made, the so-shaped " bamboo " rings decreasing reflection losses.