baber/WOPTO huggingface dataset:
Patent GB-884583-A (GB)
Title: Process of polymerizing or copolymerizing olefines
IPC: C08F2/00
Filed: 1958-11-17
Abstract: Olefines containing 2 to 8 carbon atoms are polymerized by the low pressure process using titanium trichloride as catalyst and as activator a mixture of aluminium triethyl and diethyl aluminium chloride in a molar ratio within the range of 10:90 to 40:60.  The olefine may be ethylene, propylene, butene-1 or pentene-1 and mixtures of two or more of these may be copolymerized.  The polymerization may be carried out in an inert solvent (which is free from oxygen), such as a petroleum fraction or a saturated aliphatic hydrocarbon, e.g. pentane, hexane, octane, cyclohexane or methyl-cyclohexane.  The polymerization may be made continuous and the olefin, catalyst and/or the activator may be added during the polymerization; the polymerization may be stopped by the addition of isopropanol.  The titanium trichloride may be made by subjecting the reaction product of titanium tetrachloride with an organo-aluminium compound to a thermal treatment, optionally followed by repeated washing with an inert solvent.  The activator may be made, in the presence of an inert solvent or not, from aluminium triethyl and aluminium diethyl chloride or from aluminium triethyl and aluminium sesquichloride or trichloride. The polymer products consist predominantly of the isotactic variety.  Specification 799,392 is referred to.
Patent GB-1311953-A (GB)
Title: Milking equipment
IPC: A01J5/04
Filed: 1970-07-31
Abstract: 1311953 Milking apparatus ZERO MFG Co 31 July 1970 [14 Aug 1969] 37065/70 Heading AIM A milk claw into which milk passes through passages 2 has a milk outlet 3 connected to vacuum and an adjacent opening 7 to the atmosphere in which is slidably mounted a valve 5 preferably of flexible material having a tapered portion 9 able to close the opening 7 and a disc-shaped portion 11 able to close the outlet 3 in such a way that the opening of opening 7 to atmosphere occurs simultaneously with the closing of the outlet 3 to the milk line. This facilitates washing and sterilizing of the unit without the risk of introducing sterilizing fluid in the milk outlet 3.
Patent GB-1221917-A (GB)
Title: Vibratory road roller
Inventor: VENC STANISLAV
IPC: E01C19/28
Filed: 1969-07-23
Abstract: 1,221,917. Vibratory road rollers. STAVOSTROJ NARODNI PODNIK. 23 July 1969, No. 37130/69. Heading B7H. In a vibratory road roller having two roller drums 1, 15 mounted in tandem and vibrated each by a respective vibration generator 9, 20, the vibration generator 20 is arranged to produce vibrations of a higher frequency and lower amplitude than the other generator 9 so that soil including particles of varying size can be more effectively compacted. The vibration generator 20 is driven from an engine 12 through a step-up belt drive 26, and the vibration generator 9 is driven through a step-down belt drive 23. An hydraulic pump 14 driven by the engine 12 feeds hydraulic motors 5, 17 which each drive a respective drum, 1, 15 through a pinion 6, 18 and gear 7, 19. The shaft 8 of each drum 1, 15 is journalled by bearings 3 in a sub-frame 2, 16 connected through resilient damping elements 10, 21 to a main frame 11 carrying the engine 12.
Patent GB-1011641-A (GB)
Title: Improvements in loose leaf binders
Inventor: HARE JEFFREY BAWCUTT
IPC: B42F13/28
Filed: 1963-09-21
Abstract: 1,011,641. Loose-leaf binders. C. H. HARE & SON Ltd. Sept. 21, 1964 [Sept. 21, 1963; Nov. 15, 1963], Nos. 37220/63 and 45317/63. Heading B6E. In a loose-leaf binder wherein the leaves are filed on telescopic posts 7, 8, 9 between bars 5, 6 which are held together by a screw-andnut means, the ends of the posts 7, 9 can be engaged in a mounting member 20 which embodies a manually-operable locking member 23, 28, and which is secured to the top cover 24 of the binder. The posts 7, 9 each comprise a central rod 10 projecting from the bar 5 secured to the rear cover 38, and an outer tube 11 secured to the bar 6. Each rod 10 projects through a hole in the bar 6, and has a rounded end 13 and a side groove 14 therein. The central post 8 comprises an outer tube 15, secured to the bar 5, which is reduced in internal diameter and screw-threaded at its upper end, and a screw 17 having an enlarged screw-threaded end 18 and a head 19. The screw 17 may be retained in a slot in the bar 6 by the device described in Specification 964,614. The screw 17 can be screwed through the upper part of the tube 15, and is then freely slidable in the interior of the tube; thus, the bar 6 can be raised and lowered, but cannot be removed until the screw 17 is removed. The mounting member 20 comprises a channel section 21 closed by a strip 22 to form a guide for a slidable strip 23, having a handle 28, which is slotted to receive rivets 25 securing the member 20 to the cover 24, and to register with holes 31 in the strip 22. When the cover 24 is swung into closing position, the free ends 13 of the rods 10 enter the holes 31, and the edges of the slots in the strip 23 are engaged with the grooves 14 on the rods 10 by the action of a tension spring acting on the strip; thus, the cover 24 is locked in closed position, and can be unlocked by depressing the handle 28. The covers 24, 38 are connected by a spine 40. In a modification, the locking strip 23 is not urged by a spring, and is held frictionally in the locking and release positions.
Patent GB-840317-A (GB)
Title: Low-voltage heavy-duty electric fuses
IPC: H01H85/044
Filed: 1956-12-06
Abstract: 840,317. Fusible cut-outs. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Dec. 6, 1956 [Dec. 9, 1955], No. 37326/56. Class 38(1). In a fuse of the type having end plates 11, each plate is extended to form a contact having projections 17 extending towards the other plate. Fig. 4 shows a modification wherein a projection forming portion 17 is partially separated from the end plate 11 by a slit 18. This portion 17 may be bent once through a right angle (Fig. 6, not shown) or twice through a right angle as shown in Fig. 5.
Patent GB-814180-A (GB)
Title: Mixed ferrites by a coprecipitation process
IPC: H01F1/36
Filed: 1955-12-30
Abstract: 814,180. Magnetic compositions. STEATITE RESEARCH CORPORATION. Dec. 30, 1955 [July 1, 1955], No. 37465/55. Class 38 (2). Mixed ferrites are made by coprecipitating compounds of two or more bivalent metals, and heat treating ferric oxide mixed with the mixture of compourds or oxides derived from the compounds. Suitable proportions of zinc oxide and manganese carbonate are formed to a sluriy with water from which oxalates of the metals are precipitated by the addition of a solution of oxalic acid until the solution is slightly acidic. The water is removed, as by decanting, and the precipitate is washed, dried, mixed with Fe 2 0 3  in a ball mill and sintered in air at 1700‹ F. for two hours. Part of the Fe z 0 3  may be retained for addition to a ball milling with this product. The mixture so obtained is dried, mixed with an organic binder such as methyl cellulose, and water, moulded, and sintered in air at 2350‹ to 2400‹ F. Zinc carbonate may be used instead of zinc oxide. Other examples describe the precipitation of nickel and zinc hydrates by the addition of caustic soda to a solution of nickel and zinc sulphates ; the production of a mixture of nickel, zinc and copper oxalates by the addition of boiling oxalic acid solution to a slurry of the metal hydrates, ard the precipitation of rickol ard zinc oxalates from a solution of zinc and nickel chlorides by the addition of ammonium oxalate. Details of magnetic properties of the materials are given.
Patent GB-1352780-A (GB)
Title: Cartridge for use with a surgical instrument for ligating organic tubular structures
IPC: A61B17/32
Filed: 1971-08-11
Abstract: 1352780 Ligature apparatus UNITED STATES SURGICAL CORP 11 Aug 1971 [18 Aug 1970] 37648/71 Heading A5R A cartridge and anvil assembly 10, Fig. 1, for the placement of a pair of wire ligatures around a tubular organ 76, comprises a pair of parallel rails 14, each having an upstanding anvil surface 86, Fig. 10, and each provided with a guide track 82, Fig. 7, extending along the length of the rails for the guiding and bending of a ligature, a carriage 12 movable along the rails 14 and being provided with guide tracks 84 associated with guide tracks 82, a pair of wire ligatures 68 carried by the carriage, and a pusher element 16 movable relative to the carriage to push a wire ligature along the guide tracks. The cartridge and anvil assembly is adapted to be mounted on a surgical instrument 18, whereupon after initial action, shafts 28, 30 and shoulders 34, 36 move away from the nose 32 of the instrument. The carriage movesuntil the mating faces of the carriage and rails 14 come into contact with one another. However; shaft 28 continues to move in the direction 78 with respect to shaft 30, as do the shoulders 34 with respect to shoulders 36. The pair of pusher elements 16 then move in the direction (80), Fig. 8 (not shown), with the carriage 12 remaining stationary. A pair of ligatures 68 are carried by the pusher elements along their respective tracks 82, 84. Further movement in direction (80) merely diminishes the area in which the tubular structure is housed until the arms of the ligatures ride along the curved surfaces of the anvils 86. A V-shape is provided on one end of the ligature with a mating point on the other end to ensure proper mating of the ligature arms. After the ligating operation the organic structure may be severed intermediate the two ligature positions using a knife 88 which is associated with an externally positioned thumb-operated control bar 90.
Patent GB-960818-A (GB)
Title: Improvements in and relating to gyroscopic apparatus
Inventor: HELLER FRITZ
IPC: G01C19/44
Filed: 1959-11-06
Abstract: 960,818. Gyroscopic apparatus. SPERRY GYROSCOPE CO. Ltd. Aug. 26, 1960 [Nov. 6, 1959], No. 37724/59. Heading G1C. A gyroscope mounted on a vehicle is precessed to define a reference direction by mechanism which has two modes of operation, changeover from one mode to the other, to avoid error, taking place automatically when acceleration of the vehicle causes simultaneous response of two devices which differ from'each other in their response to other factors. As applied to a gyro-vertical carried by an aircraft, erection is normally provided by tilt detectors 2 and 3 associated with the bank and pitch axes and controlling torque motors 4 and 5. When rate of yaw and angle of bank of the aircraft exceed predetermined values, detectors 6 and 10, responsive to these quantities, close switches S1 and S2 to energize a changeover relay A so that both torque motors are then controlled by pitch detector 3. A modification which takes account of the senses in which rate of yaw and angle of bank are exceeded is referred to. In another modification when the angle of pitch of the gyro and the aircraft both exceed predetermined values, two liquid-level operated switches close to energize a relay which renders the pitch erection system ineffective by short-circuiting.
Patent GB-1436512-A (GB)
Title: Electrical socket adaptor
IPC: H05K3/30
Filed: 1974-08-29
Abstract: 1436512 Two-part connector ITT INDUSTRIES Inc 29 Aug 1974 [4 Sept 1973] 37767/74 Heading H2E A socket adapter comprises a body 22 moulded in one piece from rubber or a thermoplastics material. Pins 30 are an interference fit in socket contacts provided by plated-through holes 18 of printed circuit board 14 thus serving to hold leads 16 of circuit element 12, e.g. a dual in-line package or integrated circuit, in electrical contact with the walls of holes 18.
Patent GB-368419-A (GB)
Title: Improvements in or relating to apparatus for use in parting and/or bottoming glass and silica tubing and/or tubes
IPC: C03B23/11
Filed: 1930-12-15
Abstract: 368,419. Parting and bottoming glass and silica tubing. JOHNSEN & JÍRGENSEN FLINT GLASS, Ltd., 26, Farringdon Street, and ASHFORD, E., Prioto Road, Charlton, both in London. Dec. 15, 1930, No. 37788. [Class 56.] Glass or silica tubing or tubes are parted and bottomed while mounted and supported in carriers or heads which are simultaneously rotated and rectilineally displaced in a direction perpendicular to their axes of rotation. The tubes are held between jaws, each comprising two members which may be of the form described in Specification 335,249, [Class 56, Glass], and form oppositely disposed forks, the jaws being slidably mounted in carriers 4 which are continuously displaced longitudinally of the apparatus by endless chains 5, 6 driving sprocket wheels 7 .. 10. The carriers may be arranged to travel in vertical planes. They are rotated by sprocket wheels 11 .. 14 and endless chains 15, 16, through a gear wheel 27 on a main driving shaft 26. Each carrier comprises an inner sleeve which can be displaced by means of a ramp 57 and cooperating bell-crank lever 54<1> to operate bell-crank levers coupled to the gripping jaws and effect the opening and closing thereof. An outer sleeve is actuated at the proper time by a ramp 65 to effect drawing of the tubes. A plurality of burners 84 extend centrally of the apparatus, the gas supply valves being operated by cams 87 on the carriers 4. The members 20, 21 having guides 18, 19 on which the carriers 4 move may have screw-threaded connection with a shaft 89 so that, by rotating the shaft by the handwheel 92, the carriers may be adjusted for tubes of different lengths. Simultaneous adjustment of the members 201, 21<1> carrying the sprockets 11 .. 14 is effected by gearing 117, 118, 119. The burners may be adjusted by a hand-wheel 100 on a shaft 101 having a gear wheel 102 meshing with a quadrant 103 on a shaft 107 which, together with a shaft 106, carries a cam to raise or lower the burner boxes 84. In the vertical type of apparatus, the burners may give two flames so that parting. and bottoming may be effected on opposite sides of the vertical axis simultaneously.
Patent GB-1247072-A (GB)
Title: Improvements relating to x-ray diagnostic apparatus
IPC: H05G1/60
Filed: 1969-07-28
Abstract: 1,247,072. X-ray apparatus. SIEMENS A.G. 28 July, 1969 [27 July, 1968], No. 37843/69. Heading H2H. An X-ray apparatus having a plurality of grid-controlled tubes parallel connected to a common high-voltage source has a control means operated by individual exposure devices to cause a desired voltage to be applied for a selected time to the respective tube and to disable other tubes while one tube is conductive. The tubes 1, 2 may be activated alternately for cinematograph operation and interlocked with film changers 16, 17. With film changer 16, for example, in exposure condition a contact 18 will be closed and on depression of a button 14 on panel 9 a negative voltage previously applied to tubes 3, 4 is removed which tubes become conductive for a period determined by a control 11. Tube 1 is then rendered conductive for a period adjusted by a control 12 which period extends beyond that during which the controlled rectifiers 3, 4 remain conductive in order that the highvoltage supply a, b which rises to a no-load value will not be applied to a still heated X-ray tube. On completion of the exposure contacts 18 are opened and 19 are closed and a similar sequence operates with respect to tube 2 except that contacts 20, 21 selecting tube voltage are changed over to an alternative position on to taps 26, 27 adjusted by a control 10<SP>1</SP> which taps adjust the conductivity of the rectifiers 3, 4 and hence the voltage applied to a tube. Operation of the film changers 16, 17 are effected by known means (not shown).
Patent GB-932436-A (GB)
Title: Diphenyl methane derivatives and their preparation
Inventor: GIUDICELLI DON PIERRE RENE LUC
IPC: C07D211/70
Filed: 1960-11-03
Abstract: Compounds of formula <FORM:0932436/IV(a)/1> where X is hydrogen or halogen, Y is <FORM:0932436/IV(a)/2> <FORM:0932436/IV(a)/3> and n is 1, 2 or 3 when group Y is bonded to the -(CH2)ngroup through a nitrogen atom or n is 0, 1, 2 or 3 when Y is <FORM:0932436/IV(a)/4> are prepared by reacting a compound of formula <FORM:0932436/IV(a)/5> with an excess of a compound of formula HO-(CH2)n-Y in the presence of toluene-p-sulphonic acid.  The products, some of which are new, may be converted to the hydrochlorides.  Examples are given. Products of the above formula may be mixed with diluents e.g. with shellac, talc, sugar, tartrazine yellow, carnauba wax and gum arabic and formed into tablets, for use as antihistaminic agents, sedatives and tranquillizers.
Patent GB-1532878-A (GB)
Title: Speed measuring apparatus
IPC: H02K21/14
Filed: 1976-09-13
Abstract: 1532878 Measuring speed SMITHS INDUSTRIES Ltd 13 Sept 1977 [13 Sept 1976] 37925/76 Heading G1N A speed measuring apparatus has a rotor comprising a plurality of alternate North and South poles around its periphery, a stator having interdigitated poles 16, 17 and a coil 14 in which is induced a signal representative of the speed of rotation of the rotor. The stator poles 16, 17 are tapered towards their free ends, Fig. 2. The magnetic poles in the form of a magnet 24 are rotated by a shaft 19 through an annular metal body 26 and a sleeve 25, a sleeve 27 of sintered metal impregnated with silicone oil forming a bearing for the magnet assembly.
Patent GB-303028-A (GB)
Title: A cylindrical tubular structure for aeronautical constructions and other purposes
IPC: B64C1/06
Filed: 1928-12-24
Abstract: 303,028. Rietti, G. Dec. 23, 1927, [Convention date]. Metal tubes. - A hollow member of varying strength for use in the frames of aircraft &c. is externally of cylindrical form and has a thickness increasing from the ends thereof to the centre. As shown in Fig. 1 each member comprises a series of ordinary tubes 1 - - 4 inserted one within the other, each tube being shorter than the one surrounding it. Such members may be used to form airscrew-blades &c. by a flattening or distorting operation. The Specification as open to inspection under Sect. 91 (3) (a) comprised also members formed by joining the bases of two cone frustrums with or without a cylindrical connecting piece, Figs. 2 and 3, (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-1014497-A (GB)
Title: Photographic developing apparatus
IPC: G03D9/00
Filed: 1962-10-09
Abstract: 1,014,497. Photographic developing apparatus. HERMANN WOLF G.m.b.H. Oct. 9, 1962 [Oct. 14, 1961], No. 38119/62. Heading G2A. A developing tank of the kind in which the liquid can be drained into a bag-like container attached to an opening in the bottom of the tank is characterised in that the tank bottom has formed thereon a number of guiding ribs, with a groove running transversely of the ribs to guide the liquid to the said opening. In the form shown, the plastic tank 1 has an opening 2 with a connection 3 leading to a bag (not shown). On the bottom of the tank are a number of parallel ribs 4, 4<SP>1</SP>, which guide the photographic papers and keep them out of contact with the tank. A groove 5 runs transversely of the ribs, so that the developer liquid can run off freely into the opening 2 unimpeded by the ribs. To prevent the front edge of the paper from sliding off the ribs into the groove, the latter is bridged over between the grooves by bridge pieces 6, 7, 7<SP>1</SP>, the piece 6 covering the opening 2. In the alternative embodiment of Fig. 3 (not shown), the groove is V-shaped, which avoids the necessity for the bridge pieces.
Patent GB-1480791-A (GB)
Title: Air bearings for turntables
IPC: G01B5/00
Filed: 1975-09-01
Abstract: 1480791 Bearings FERRANTI Ltd 1 Sept 1975 [31 Aug 1974] 38165/74 Heading F2A [Also in Division G1] A turntable, used for the rotation of a prism about its longitudinal axis during the measurement of prism angles, comprises a first member 11 supported on and rotatable relative to a second member 12, juxtaposed surfaces of the members being optically flat such that an air bearing layer is formed between them. The members are preferably transparent glass blocks. The block 12 is fitted inside a cylindrical housing 13 secured to a mount 14, 16. A second housing 17 fits over the housing 13 to be rotatable relative thereto. The upper part 18 of the second housing grips the first glass block 11. The housing 17, and thus the block 11, can be rotated by means of a gear wheel 22. Fine adjustment is provided for by a cylinder 24 which is a friction fit on the outside of cylindrical housing 17. The cylinder 24 has a toothed rim 25 which is engaged by a worm wheel 26. If the juxtaposed surfaces of the block are illuminated to produce interference fringes, the wedge angle of the air layer can be measured. The blocks are assembled under clean conditions, and a retaining plate 20 secured to the cylinder 17 acts as a seal. The lower surface of block 12 can be painted matt black.
Patent GB-1099462-A (GB)
Title: Adhesive film
Inventor: LINCOLN JAMES
IPC: C09J7/10
Filed: 1963-09-30
Abstract: Compositions comprising an alcohol-soluble copolyamide and a polyepoxide are formed into self-supporting heat-curable adhesive films (see Division B5).  The polyamides are defined as derived from two or more salts of diamines and dicarboxylic acids, alpha-omega-aminocarboxylic acids or their lactams.  The compositions may also contain up to 1% of a polyamine, up to 2% of a phenol, and fibrous fillers and colouring materials, e.g. titanium dioxide.  The only polyamide exemplified is nylon 66/6. Specified polyepoxides are the glycidyl ethers of resorcinol, bisphenol A and novolac and resole resins. Solvents used in examples are methylated spirits plus water with or without cyclohexanol or methylene chloride.
Patent GB-1398535-A (GB)
Title: Process for the production of substituted cyclohexen-2-ones
IPC: C08K5/07
Filed: 1972-08-18
Abstract: 1398535 Cyclohex-2-enones DEUTSCHE TEXACO AG 18 Aug 1972 [3 Sept 1971 (2)] 38680/72 Heading C2C  Substituted cyclohex-2-enones are prepared by reacting a cyanoethylated ketone having the general formula in which R 1  is hydrogen or an alkyl group having 1 to 5 carbon atoms, and R 2  and R 3 , which may be the same or different, are each hydrogen, an alkyl group having 1 to 5 carbon atoms or a betacyanoethyl group, in a polar solvent in the presence of a catalyst at from 20‹ to 150‹ C. The catalyst may be a base which results in an amino-substituted product or a strong mineral acid which results in an hydroxy-substituted product. Preferred solvents are primary, secondary and tertiary alcohols boiling between 60‹ and 150‹ C.
Patent GB-947992-A (GB)
Title: Improvements in and relating to seam welding employing high frequency electrical current
IPC: B23K13/04
Filed: 1962-10-12
Abstract: 947,992. Making rims or hoops; welding by pressure. AMERICAN MACHINE & FOUNDRY CO. Oct. 12, 1962 [Feb. 19, 1962], No. 38780/62. Headings B3A and B3R. In welding the opposed gap edges on a succession of pairs of metal portions, the portions are advanced with the gaps collectively forming a V-gap, the edges being pressed together, and highfrequency current is applied to the opposed edges in advance of a weld point. A succession of short-gapped tubes 17, e.g. wheel rims or hoops, are placed one after the other on the rear end of a tapered slotted mandrel 10 of non-magnetic material and are gripped by endless belts 19, 20, which urge the tubes along the mandrel and gradually close the gaps. The edges of the gaps are guided by an insulating member 15 in the mandrel seat and contacts 31, 32 connected to a source of high-frequency current, e.g. above 50 kc. per sec., preferably 300- 400 kc. per sec. are applied to the edges in advance of the weld point w where the edges are pressed together and welded by rollers 25, 26 driven by belt and gear or sprocket from the endless-belt drives. The welded tubes 17<SP>1</SP> are pushed off the mandrel by the succeeding tubes. An impeder may extend within the workpieces, which may be merely strip lengths, and the welds may be lapped or mash-lapped. Specifications 772,279, 811,251, 851,528 and 881,091 are referred to.