baber/WOPTO huggingface dataset:
Patent GB-1132862-A (GB)
Title: Improvements in or relating to moulds
Inventor: JANES BRIAN THOMAS
IPC: B29C45/38
Filed: 1965-10-08
Abstract: 1,132,862. Injection moulds. SMITHS INDUSTRIES Ltd. 7 Oct., 1966 [8 Oct., 1965], No. 42715/65. Heading B5A. An injection mould comprises a mould cavity 19 defined between mould parts 3, 4, the part 4 being movable away from the part 3 after the part 3 has been spring urged away from a part 2 so as to separate the hardened material in a sprue 12 from the hardened material in the cavity 19. Parts 2 and 3 include plates 9 and 10 respectively which, together with a bushing 11 on plate 10 together define a sprue 12. Plates 9, 10 contact each other along a line 13 which is at an angle to the axis 14 of the sprue. The sprue material is retained by hardened material in a reversely tapered extension 16, and is ejected by a pneumatic ejector pin 17. The parts 2 and 3 are urged away from the part 1 by springs 6 and (7) respectively to the extent permitted by stop members (not shown).
Patent GB-1396021-A (GB)
Title: Channel mounted level sensor
IPC: G01F23/18
Filed: 1972-09-14
Abstract: 1396021 Measuring fluent levels electrically METRITAPE Inc 14 Sept 1972 [15 Sept 1971]  42723/72 Heading G1N A level transducer comprises a base conductive strip covered with a helical resistance winding and inserted vertically in a container of fluent material whereby the material in the container forces the resistance winding against the conductive strip to short-circuit part of the resistance and the value of the remaining resistance is indicative of the material level. The invention relates to a protective housing for the transducer 23, Fig.4, comprising a channel 34 and a thin facing strip 40 covering the actuatable side of the transducer and supported in grooves 38, 39 in the sides of channel 34. Details are given of different types of assembly, with and without a facing strip 40, and of an assembly for mounting the transducer in a container Fig.12, (not shown).
Patent GB-1259668-A (GB)
Title: Inking member and method of making same
IPC: B41F31/22
Filed: 1969-09-02
Abstract: 1,259,668. Inking rollers. DAYCO CORP. 2 Sept., 1969 [18 Oct., 1968], No. 43456/69. Heading B6C. A self-contained inking roller 20, Fig. 2, comprises a hollow cylindrical body of porous material sealed at both ends by trunnions 31. The roller is filled with ink either by removing one trunnion or immersing the whole roller into an ink bath and applying pressure on the ink which may be accompanied by connecting a vacuum source to the interior of the roller. When filled, the entire roller may be dipped in a plastic sealing mixture which prevents loss of ink until the roller is to be used when the outer coating of sealing mixture is removed from the roller surface by grinding or some other suitable operation. Other roller embodiments are described which include a plurality of ink reservoirs such as in Fig. 5, or a modification of Fig. 5, in which the reservoirs 34 are lined with ink-sealable linings which are notched longitudinally for passage of the ink to the porous material. A further embodiment has a plastic inkimpermeable core which produces a series of axially extending annular reservoirs.
Patent GB-923474-A (GB)
Title: Magnetic recording and playback systems
IPC: G11B5/00
Filed: 1961-12-05
Abstract: 923,474. Magnetic recording; monitoring. AMPEX CORPORATION. Dec. 5, 1961 [Jan. 23, 1961], No. 43572/61. Class 40 (2). Substantially simultaneous recording and playback of a signal on a magnetic tape 48 is obtained by amplitude-modulating a carrier frequency, which is then fed to coils 58, 60 on a two-gap head such that their flux tends to assist across a recording gap 46 in the region 42 and to oppose across a playback gap 50 in the region 44. The tape is presaturated and in crossing the gap 46, demodulates the flux such that substantially only the modulation is recorded on the tape, as detailed in U.S.A. Specification 1,886,616 in a sound-recording embodiment. The recorded modulation now energizes a playback winding 64 in the region 44, a low-pass filter 68 removing any remaining carrier frequency component resulting from a lack of balance of flux in the region 44. An alternative arrangement, Fig. 3, uses two heads 74, 76 with a common record winding 80 and opposed playback windings 86, 88 relative to the recording flux, only the gap 78 contacting the tape to provide simultaneous recording and playback.
Patent GB-1165356-A (GB)
Title: Ventilation of Enclosed Electrical Machines
IPC: H02K9/14
Filed: 1966-10-03
Abstract: 1,165,356. Cooling dynamo-electric machines; mounting rotors. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 3 Oct., 1966 [4 Oct., 1965], No. 44037/66. Heading H2A. A dynamo-electric machine having two fans, to produce separate internal and external currents of air, mounted on a sleeve which extends outside the housing and is adapted to rotate on the rotor shaft, is characterized in that the sleeve is mounted in bearings both with respect to the rotor shaft and with respect to a bearing end-plate, and serves as the single bearing for the shaft at this end of the machine. As shown, 1 is the rotor shaft of an enclosed internally and externally ventilated machine. A sleeve 2, mounted on bearings 3 on the rotor shaft 1 and by means of a bearing 4 with respect to a fixed bearing bracket 5, carries fans 6 and 8. The inner fan circulates the internal air of the machine and guides it along the inner surface of cooling ribs 7; the outer fan draws in ambient air through the machine hood 9 and forces it over the outer surface of the ribs 7. The sleeve 2 has a pulley 10 for a toothed belt, driven (preferably more rapidly) by an auxiliary motor.
Patent GB-930377-A (GB)
Title: Improvements in or relating to metering and dispensing systems
IPC: B01J4/02
Filed: 1959-12-29
Abstract: 930,377. Mixing liquids in definite proportions. A. L. KRAFT. Dec. 29, 1959, No. 44091/59. Class 86. [Also in Groups XXVIII and XXIX] In a device for metering and mixing two liquids, e.g. a resin and a catalyst, in a predetermined but adjustable ratio, the liquids are pumped by diaphragm pumps the displacement of which is controlled by oil-loaded reciprocating pistons, the cross heads of which are connected to a common swinging link; the position of the cross-heads on the link determines the ratio of the liquids. In Fig. 1 resin in the pressurized reservoir 1 is forced by the air pressure into the chamber 5 (the valve 4 being open and the valve 9 closed) and deflects the flexible diaphragm 8, thus displacing oil from the chamber 7 and forcing the piston 12 downwards; the oil 25 on the other side of the piston 12 is forced into the reservoir 24 which is vented to atmosphere. On completion of the down stroke the valve 4 is closed, the valve 9 is opened, and the reservoir 24 is pressurized; the piston 12 is then driven upwards, displacing oil into the chamber 7 where the consequent deflection of the diaphragm displaces resin from the chamber 5 through the pipe 10 to the mixer 11. The catalyst contained in the reservoir 35 is pumped in precisely the same way by the operation of valves 41, 42 (which operate in synchronism with valves 4 and 9), diaphragm 38 and piston 43. The ratio of the liquids is controlled by the position of the pivots 18, 47 in relation to the fulcrum 16 of the swinging link 15; the ratio may be altered by adjusting the position of the reciprocating pumps in relation to the link 15, see Fig. 2 (not shown) The valves 4, 9, 32, 41, 42 are pneumatically actuated, see Fig. 4 (not shown), and Group XXIX; the air flow is regulated by electrically actuated valves 28, 30, 31 and the operation of the system is electrically controlled, see Fig. 3 (not shown). The system may be operated to give single or repeated shots, and will discharge automatically after a fixed time interval if not operated. The rate of delivery of the liquids may be altered by manual adjustment of the pressure regulator 151, and the total quantity delivered at each stroke by adjustment of the position of the stops 21, 22. The reservoirs and the mixer may be heated by thermostatically controlled immersion heaters. Additional liquids may be pumped by connecting further pistons to the swinging link 15; in a modification, Fig. 1A (not shown), three pistons are connected to a link in the form of a bell-crank. In another modification, Fig. 1B (not shown), only one liquid is pumped indirectly by a diaphragm pump according to the invention, the other liquid being pumped directly by a simple reciprocating pump operated by the swinging link.
Patent GB-1017369-A (GB)
Title: Improvements in lubrication of bearings
IPC: F04B39/00
Filed: 1964-10-30
Abstract: 1,017,369. Bearings; lubricating. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 30, 1964 [Nov. 12, 1963], No. 44399/64. Heading F2A. [Also in Division F1] A mechanism, such as a hermetically-sealed motor compressor 10, has a vertical shaft 22 supported in bearings 19, 21. The shaft 22 has its lower end submerged in lubricant 25 which is contained in the base of a shell 11; has a radial pumping passage 32, Fig. 2 (not shown), at its lower end; a vertical passage 31 which connects the passage 32 with a radial passage 36 in an extension of the shaft 22, and has a central axial passage 41 which connects the passage 32 with the periphery of the shaft, via a radial passage 42 in the shaft 22. The pumping action of the passage 32 may be supplemented by a helical groove 38 in the shaft 22. In use, lubricant is pumped to the bearings via the passages 32, 38, 31 and 36 in the shaft 22 and also via passages 34 and 37 in an offset portion 24 of the shaft 22, which serves as a crank-shaft and is connected by a connecting- rod 26 to a compression piston 17; and gaseous bubbles of lubricant " float " through the passages 41, 42 in the shaft and return to the reservoir. In an embodiment, the shaft 22 has a rotor 23 of an electric motor 13 mounted thereon; a stator 18 is supported in a frame 14 along with a compressor 12 and the bearings 19, 21; and the frame 14 having lugs 29 thereon is resiliently mounted by springs 27 on lugs 28 of the shell 11. In a modification, the pumping action of the passage 42 is augmented by a fan 50, Figs. 5 and 6 (not shown). The fan 50 also has stirrer-blades 56 thereon which dip into and agitate the lubricant and cause bubbles which reduce noise transmission.
Patent GB-1016955-A (GB)
Title: 6,16-dimethyl 15-dehydrosteroids and processes for their production
IPC: F16L3/00
Filed: 1962-11-23
Abstract: The invention comprises compounds of the formula <FORM:1016955/C2/1> (wherein X is H or F; Y is a -H, b -OH or =O; and Z is a free or esterified hydroxyl group) and their D 1-, D 6-, and D 1,6-analogues; and their preparation by reacting 6,16-dimethyl-16a , 17a oxido-progesteron in any sequence with an acid in the presence of water and a watermiscible solvent to split the 16a ,17a -epoxide ring, with an 11-hydroxylating micro-organism, and with an alkaline iodine solution and then an alkali metal acylate to introduce a 21-ester group which may subsequently be saponified and, if desired, re-esterified, to give a product wherein Y is b -OH and X is hydrogen.  The 11-hydroxy steroid may then be dehydrated to the corresponding D 9(11)-compound, this reacted with HOBr and an alkali metal acylate to form the corresponding 9b ,11b -oxido-compound, and this treated with HF to give the corresponding 9a -fluoro-11b -hydroxy-steroid. The 11-hydroxysteroids may be oxidized with mild oxidizing agents to give the 11-keto-steroids. Double bonds may be introduced at the 1- and/or 6-positions by treatment with chemical or microbiological dehydrogenating agents.  Examples are given. The steroids of the invention, which are stated to have anti-inflammatory properties, may be made up into pharmaceutical or veterinary compositions with suitable carriers.  Oily and aqueous solutions, suspensions, emulsions, tablets, dragees, ointments and creams are referred to.  They may also contain preserving, stabilizing or wetting agents, or salts to influence the osmotic pressure, or buffers.
Patent GB-975729-A (GB)
Title: Process for the separation of nitrogen and oxygen from air by fractional distillation
Inventor: STREICH MARTIN
IPC: F17C9/04
Filed: 1963-11-12
Abstract: 975,729. Cold separation of air. CONCH INTERNATIONAL METHANE Ltd. Nov. 12, 1963, No. 44604/63. Heading F4P. In a two-stage air retification process wherein feed air admitted through a duct 1 is cooled in an exchanger 13 traversed by a reverse flow of effluent nitrogen gas from the head of the lowpressure column 29, nitrogen gas withdrawn from the high-pressure column 17 through ducts 18, 21 is further compressed at 23, 25 cooled in exchangers 24, 26 traversed by a reverse flow of an external refrigerant e.g., liquefied natural methane supplied by a pump 38 and the so-cooled nitrogen gas is expanded at a valve 28 back into the highpressure column 17. Prior to being cooled at 13 feed air supplied by a blower 2 is cooled in a water-cooled exchanger 4, exchangers 5, 10 cooled by methane gas and liquid respectively and is compressed at 12 to the working pressure of column 17. Product liquid oxygen is withdrawn from the base of column 29 through a duct 36 or the liquid oxygen may be vaporized in cooling feed gas. Vaporized methane gas is discharged through a duct 6.
Patent GB-1018868-A (GB)
Title: Installation for excavation and removal of rubbish
IPC: E03F7/10
Filed: 1963-11-18
Abstract: 1,018,868. Endless belt discharge from mine. A.-A. MAZHARI. Nov. 18, 1963 [Nov. 21, 1962], No. 45481/63. Heading B8A. Spoil, which collects in an underground working as the result of the operations of worker 8, is discharged therefrom up to the surface and on to a waiting lorry by means of endless band 10. The band carries buckets 12 and is guided by pulleys such as 24, 25, 17 and 16 and, in order that the band shall pass round the pulleys, it is twisted through a right angle at the appropriate points of. travel. Thus in operation the worker 5 releases an empty bucket 12 from band 10, fills it with the spoil and then hooks it on to the band for eventual discharge. The band travels at a speed sufficiently slow for the operator to perform these functions. Bucket 12, Fig. 4.-Bucket 12 has hook 15 which is releasably carried by bracket 13 pivotally connected at 11 to the join of two sections of the band 10, the band being formed in sections.
Patent GB-1202738-A (GB)
Title: Production of useful carbon aggregates
IPC: H05B7/085
Filed: 1967-10-05
Abstract: 1,202,738. Carbon aggregates. GREAT LAKES CARBON CORP. 5 Oct., 1967 [19 Oct., 1966], No. 45595/67. Heading CIA. [Also in Division C5] A carbon aggregate is produced from a puffing petroleum coke by contacting the coke with a puffing inhibiting agent, e.g. iron oxide, then heating in a non-oxidizing atmosphere to a temperature of 1400‹ C. and above that at which the coke begins to puff in the absence of the inhibitor and cooling the product to below 200‹ C. A graphite body may be produced by mixing a carbonaceous filler comprised of at least 20% by weight of the cooled product described above with a carbonaceous binder such as pitch, shaping and then heating to at least 2000‹ C. in a non-oxidizing atmosphere. Carbon bodies may be prepared by heating the shaped article to a temperature sufficient to carbonize the binder, that is, at least 500‹ C.
Patent GB-1186696-A (GB)
Title: Improvements in Coating Compositions
IPC: C09D133/06
Filed: 1967-10-06
Abstract: 1,186,696. Coating. CELANESE COATINGS CO. 6 Oct., 1967 [12 Oct., 1966], No. 45626/67. Heading B2K. [Also in Division C3] A coating composition comprises a copolymer of 0.15 to 5.0% of a monoethylenically unsaturated carboxylic acid, 5 to 50% of a beta-hydroxyalkyl ester of such an acid and one or more other monoethylenically unsaturated monomers in solution in a medium comprising a solvent which is an aromatic hydrocarbon or an oxygen containing organic compound and has a boiling-point above 225‹F, a non-solvent which is an aliphatic or cycloaliphatic hydrocarbon having a Kaun-Butanol value below 60, and a stabilizing solvent which is a polar organic compound containing up to five carbon atoms and having a boiling point below 225<SP>‹</SP>F, the medium consisting of 40 to 80% of said solvent and containing 3 to 9 parts of the non-solvent to each part of the stabilizing solvent, and the copolymer being incompletely soluble in a mixture differing from said medium only by the absence of said stabilizing solvent. Optional components of the composition include aminoplast resins, metallic and non-metallic pigments, fillers and extenders. The compositions may be applied as paints by spraying on steel panels and the coating cured by baking.
Patent GB-1159911-A (GB)
Title: Polymeric Compositions.
Inventor: BURNSIDE CHARLES HOWERD
IPC: C08L63/00
Filed: 1966-10-13
Abstract: 1,159,911. Propellants. NORTH AMERICAN AVIATION Inc. 13 Oct., 1966, No. 45839/66. Heading C1D. [Also in Division C3] A binder for solid propellants consists of a carboxy terminated polybutadiene that has been reacted with either vinyl cyclohexene dioxide or 1,3 - bis - [3 - (2,3 - epoxypropoxy)- propyl] - tetramethyl disiloxane. Suitable fuels include particulate metals, e.g. aluminium, and suitable oxidizing agents include metal and ammonium perchlorates and nitrates; several suitable fuels and oxidizing agents are listed. Specified metal and metal oxide burning catalysts and burning rate modifiers may also be present. The composition may be cured e.g. with tris-1-(2-methyl)-aziridinyl phosphine oxide.
Patent GB-1155780-A (GB)
Title: Electromagnetic Brake or Clutch
IPC: F16D63/00
Filed: 1967-10-09
Abstract: 1,155,780. Clutches; electromagnetic disc brakes. BENDIX CORP. 9 Oct., 1967 [17 Oct., 1966], No. 46064/67. Headings F2C and F2E. An electromagnetically engaged friction or positive clutch or brake has first and second torque transmitting annular members 18/22 and 20 brought into engagement by energization of a stationary coil 16 mounted in a fixed cylindrical housing 12, the member 18/22 being of generally U-shaped cross-section with the two limbs extending radially outwardly one at each end of the coil 16, to define, with end plates 32, 36 of the coil, axial gaps in the flux path between the member 18/22 and the housing 12 of substantially the same radial height as the coil. In the clutch shown, the gaps are filled with plastics or bronze bearing rings 34, 38 which may have iron filings dispersed therein. A ring 26 of non-flux conducting material joins the parts 18, 22 and a ring 44 of flux conducting material secured to the part 18 forms one limb of the U. Member 20 is faced with friction material, and friction material 24 fills the space between parts 18, 22. Members 20 and 18/22 may alternatively have interengageable teeth.
Patent GB-1057625-A (GB)
Title: Electro deposition process
Inventor: TAPLEY JOHN GRAHAM
IPC: C25D1/20
Filed: 1963-11-25
Abstract: Electrodeposition is effected on an electrically conducting silicone elastomer which may be reinforced or supported by a metal plate or glass cloth fabric.  The deposits which may be of copper, silver, gold, zinc or cobalt may be readily stripped from the elastomer which comprises a methylvinylpolysiloxane or an a : w-dihydroxydimethylpolysiloxane into which are incorporated substances such as carbon black or metal powder to give a volume resistivity of not more than 100 ohm. cm.  In examples a cyclohexene/platinous chloride complex or dibutyl tin laurate is incorporated into the silicone rubber mix which may also include fillers such as fume silica or diatomaceous earth and ethyl silicate.
Patent GB-1416945-A (GB)
Title: Apparatus for extruding polymeric material
IPC: B29C48/65
Filed: 1973-10-05
Abstract: 1416945 Extruder screw B F GOODRICH CO 5 Oct 1973 46737/73 Heading B5A The transition zone 23-24, of a plastics extruder screw, Fig. 2, intermediate feed and metering zones 22-23 and 24-25, comprises adjacent co-extensive primary and secondary channels 38, 42, respectively of progressively increasing and decreasing volume in the extrusion directions, and defined between screw flights 32, 34 which are respectively of greater and lesser clearance from the extruder barrel surface. Particulate material within the primary channel 38 is melted in contact with the barrel surface and passes over the flight 32 into the secondary channel 42. The decreasing volume of channel 38 is achieved by a progressively decreasing depth, d<SP>1</SP>, at a constant width W 1  to enhance melting of the particles by contact with the barrel. The increasing volume of the secondary channel 42 is obtained by a progressively increasing width W 2  and depth d 2 . The melting of the particles is effected by a heated barrel, and by shearing contact with the barrel. The barrel is provided with a fluid, e.g. water, cooling jacket. The feed section 22-23 comprises a single flight 30 and the metering section 24-50 comprises either a pair of flights 26, 28 as shown, or a single flight. At the beginning 23 of the transition zone 23-24 the flights 32, 34 are formed by separation from the flight 30, and at the termination 24 of the transition zone the flights 32, 34 may merge, as in Fig. 2, with the depth of the channel 38 decreasing to the surface of the flight 32. Alternatively, Fig. 3 (not shown), the transition zone may terminate at a similar depth, but with the flights (32, 34) spaced apart, or may terminate as in Fig. 4, with a continued region 51-52 of constant depth.
Patent GB-1357436-A (GB)
Title: Preparation of alkali aluminium alcoholates
IPC: C07F5/06
Filed: 1971-10-07
Abstract: 1357436 Alkali metal aluminium alcoholates DYNAMIT NOBEL AG 7 Oct 1971 [8 Oct 1970] 46831/71 Heading C2C Alkali metal aluminium alcoholates are made by reacting an alkali metal aluminate and/or a mixture of alkali metal hydroxide or alcoholate and Al(OH) 3  with an excess of alcohol.
Patent GB-1015918-A (GB)
Title: Folding table
Filed: 1964-11-19
Abstract: 1,015,918. Folding tables. H. C. ACTON. Nov. 19, 1964, No. 47233/64. Heading A4H. In a folding table with one or more pedestal supports 20 hinged to the table top 21, the or each pedestal support comprises concentrically arranged tubes 26, 27 of which the outer tube 26 is welded or otherwise secured to the hinge and the inner tube 27 has an arm 31 fixed to it which can be swung round to support the table and is held by a snap catch 33. The table top may be circular and in a modification, Fig. 7, a single pedestal 54 is employed with a square top 51.
Patent GB-1248252-A (GB)
Title: Improvements in or relating to endless-belt conveyors
Inventor: LOW ALEXANDER CHARLES
IPC: B65G39/10
Filed: 1968-03-20
Abstract: 1,248,252. Endless conveyers. MAVOR & COULSON Ltd. 8 Jan., 1969 [20 March, 1968; 7 Oct., 1967], Nos. 13422/68 and 47515/68. Heading B8A. In an endless, troughed belt conveyer 2 the rollers 3 are each supported from an arm 8 of a bell crank lever 7 pivoted at its apex 10 to a framework 1. The other arm 9 has an aperture engagable by a bolt 11A to releasably lock the lever 7 in an upper position with the rollers 3 supporting the belt 2. The lever 7 is movable, by a handle 15, between said upper position and a lower position with the rollers clear of the belt, to permit replacement of the rollers without stopping the belt. Pivoted cover plates 16, 17 are provided. In an alternative embodiment Fig. 3 (not shown) the lever is pivoted about a pin (30) received in a slot (33) of the arm (29) to lower the rollers (23) on to a platform (34), for replacement. The lever is locked in its upper position by a pin (32) co-operating with the framework (21).