baber/WOPTO huggingface dataset:
Patent GB-962121-A (GB)
Title: Polycyclic epoxides, their preparation and compositions containing them
IPC: C07C49/693
Filed: 1961-07-31
Abstract: The invention comprises the compounds of formula: <FORM:0962121/C1/1> where each X, X1 and X11 is H, Cl, Br, or a substitute or unsubstituted hydrocarbon group containing not more than 10 carbon atoms, the broken lines indicating that th 1,4-methane bridge or the 2,3-or 6,7-double bonds may each be present or replaced by a pair of hydrogen atoms; and their production by epoxidising a compound: <FORM:0962121/C1/2> e.g. with H2O2 in the presence of a water-soluble alkaline material such as Na2CO3. Specified organic substituents are C1- 6 alkyl, cyclopentyl, cyclohexyl, methylcyclohexyl, dimethylcyclooctyl, 3,5,5-trimethylcyclohexyl, phenyl, methylphenyl, ethylphenyl, benzyl, phenethyl, allyl, crotyl, butadienyl, pentadienyl, vinylphenyl, allylphenyl, phenylvinyl, phenylcrotyl and phenylallyl; suitable substituents for these are halogen, cyano and nitro. The compounds of the invention are biocidally active (see Division A5).  Starting materials may be prepared by the processes: <FORM:0962121/C1/3> <FORM:0962121/C1/4> followed by chlorination or bromination; <FORM:0962121/C1/5> or by similar reactions with a suitable acyclic diene; a suitable starting material is also obtained by the process:- <FORM:0962121/C1/6> Compounds in which the bridged ring is saturated may be obtained by hydrogenation of the 2, 3-unsaturated starting materials.ALSO:Bioxidally active compositions contain a compound <FORM:0962121/A5-A6/1> where each X, X1 and X11 is H, Cl, Br or a substituted or unsubstituted hydrocarbon group (specified substituents being halogen, cyano and nitro) containing not more than 10 carbon atoms, the broken lines indicating that the 1,4-methano bridge or the 2,3- or 6,7-double bonds may each be present or replaced by a pair of hydrogen atoms (see Division C2) together with a liquid or solid diluent and/or a wetting agent. These compositions are active against fungi and bacteria.  Suitable diluents are vegetable oils such as castor oil, low-boiling solvents such as carbon tetrachloride, ethylene dichloride, hydrogenated naphthalene, alkylated naphthalene, solvent naphtha; petroleum oils, xylene; tricalcium phosphate, chalk, bentonite, kaolin, kieselguhr. Suitable wetting agents are specified.  Heavy hydrocarbon oils, other fungicidal, viricidal, insecticidal or acaricidal materials, plant nutritives, plant hormones, and materials which suppress phytotoxic action, such as glucose, may be present.
Patent GB-1235790-A (GB)
Title: Apparatus for digging in a pipe line or tubes which have been laid on the bottom of a waterway, for example, a seabed
Inventor: SMULDERS AUGUST HENDRIK MARIA
IPC: F16L1/032
Filed: 1969-06-02
Abstract: 1,235,790. Dredging. INDUSTRIEELE HANDELSCOMBINATIE HOLLAND N.V. 2 June, 1969 [17 June, 1968], No. 27859/69. Heading E1F. [Also in Division F2] Apparatus for forming a trench for a pipe line or tube 2 lying on the bottom 1 of a waterway has means 11 to 14 to guide it along the pipeline 2, a suction pipe 5 for digging a trench beside the pipeline, and a trenching tool 7 and associated suction pipe 19 to dig the trench in clay soils. Suction pipes 5 and 19 are connected to pumps 4 and 18 which share a common pressure line which deposits the dredged material on a portion of tube 2 already laid in the trench. A further suction line 20 ensures unimpeded passage for the apparatus which is driven on wheels 11-14. The apparatus also includes a pair of wheels 25 which run on the bottom 1. The edge of the trench formed by tool 7 is bevelled, to assist pipeline 2 to fall into it, by a coulter, by a rotatable digging element, or by water jets. Tool 7 which may comprise a chain, and pipe 5 are vertically movable by hydraulic cylinders.
Patent GB-836892-A (GB)
Title: Improvements in or relating to photographic projection-printing apparatus
IPC: G03B27/54
Filed: 1956-09-12
Abstract: 836,892. Photographic projection-printing apparatus. AGFA A.G. Sept. 12, 1956 [Sept. 21, 1955], No. 27935/56. Class 98(1) In a projection-printing apparatus, a light source which is used without a condenser includes a translucent diffusion surface convexly curved towards the negative plane and so dimensioned and positioned with respect to the negative frame that the straight lines joining points on the negative frame to diametrically opposite points on the edge of the full aperture of the objective intersect the surface or are tangential to it. An electric light source may include a bulb-shaped or tubular diffusion surface and the tubular surface may be that of an incandescent filament lamp or a gas discharge lamp. As shown, an opal lamp 8 is carried in a rotatable socket 12 mounted on an arm 14 which can be displaced along slot 15 perpendicularly to the axis of the objective 6.
Patent GB-476777-A (GB)
Title: Improvements in or relating to sound film reproducing apparatus
IPC: G11B7/00
Filed: 1936-10-15
Abstract: 476,777. Optical sound-reproducing apparatus. ZEISS IKON AKT.-GES. Oct. 15, 1936, Nos. 28056 and 28057. Convention dates, Oct. 22, 1935 and Nov. 6, 1935. [Class 40 (ii)] [Also in Group XL] An optical sound-film reproducing-apparatus is provided with a photoelectric cell 30 having an envelope of horse-shoe shape so as partly to embrace the hub of the drum 3, the cell being secured by its contacts 33, 34 to terminals 35, 36 separated by insulation 37 and mounted with insulation on a carrier 38 secured to the housing 1. A metal strip 39 provided with a light-beam aperture 41 is secured round the cell and electrical connections by a screw 40.
Patent GB-880342-A (GB)
Title: Improvements in or relating to magnetic recording apparatus
IPC: G11B5/60
Filed: 1960-08-15
Abstract: 880,342. Magnetic disc recording. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 15, 1960 [Aug. 31, 1959], No. 28117/60. Class 40 (2). In a magnetic disc recording apparatus the disc is pliable and rotates between locating means co-operating with both sides of said disc causing it to comply as necessary to ensure that parts of the disc passing a transducer do not deviate from a required recording position. In one embodiment a disc 11, Fig. 1, of metal, plastic, fibreglass or paper having at least one magnetizable surface carries concentric tracks 14c and a plurality of transducers 16. Air pressure maintains the disc at a uniform spacing from the heads. The air bearing members are so tapered as to produce a wedge-shaped supporting air stream. Additional stability for the pliable disc is provided by a guide disc 31, Fig. 4. Grooves 36 prevent the suction of the rotating disc 11 back to the guide disc.
Patent GB-1463184-A (GB)
Title: Method for the preparation of unsaturated ketones
IPC: C07C45/67
Filed: 1974-06-25
Abstract: 1463184 Unsaturated ketones SHINETSU CHEMICAL CO 25 June 1974 [26 June 1973] 28144/74 Heading C2C Unsaturated ketones of formula where R<SP>1</SP> is saturated or unsaturated aliphatic, or cycloaliphatic or aromatic hydrocarbyl, R<SP>2</SP> is C 1-6  alkyl or cycloalkyl and R<SP>3</SP> is H or C 1-6  alkyl or cycloalkyl, are prepared by reacting an unsaturated alcohol with diketene in the presence of a tertiary having a boiling point above 130‹ C. and an aluminium C 1-4  alkoxide, the amount of the amine present being from 0À002 to 0À04 moles per mole of unsaturated alcohol and the amount of aluminium alkoxide present being at least 0À002 moles per mole of unsaturated alcohol. A solvent may be present, preferably of boiling point above 150‹ C. Examples prepare 5,6-dimethyl-5- hepten - 2 - one, 6 - methyl - 5 - hepten - 2 - one, 6,10 - dimethyl - 5,9 - undecadien - 2 - one, 6,10,14 - trimethyl - 5 - pentadecen - 2 - one and 6-phenyl-5-hepten-2-one.
Patent GB-270632-A (GB)
IPC: G03B19/18
Filed: 1926-11-09
Abstract: 270,632. Zeiss-Ikon Akt.-Ges., (Assignees of Ernemann-Werke Akt.-Ges.). May 6, 1926, [Convention date]. Kinematograph apparatus.-A brake, for temporarily reducing the speed of a projector during the projection of titles &c., comprises a braking shoe carried by a pivoted member wholly controlled by the hand of the operator. As shown, the starting handle 1, having a free-wheel connection with the shaft 8, is provided with a lever 3 carrying a braking disc 5 which may be brought into engagement with the end of the shaft 8, but is normally held away from it by a spring 4. In a modification, a brake block, normally held out of engagement with a flywheel by a spiral spring, may be brought into engagement with it.
Patent GB-1437013-A (GB)
Title: Photographic diffusion transfer products and processes
IPC: G03C8/46
Filed: 1973-06-13
Abstract: 1437013 Photographic dye image-receiving material POLAROID CORP 13 June 1973 [13 June 1972] 28196/73 Heading G2C A photographic diffusion transfer material comprises a dye image-receiving element comprising an image-receiving layer comprising a mordant capable of mordanting dye image-forming material that diffuses to the layer in an alkaline processing composition and a synthetic polymer associated with the mordant in the layer and which is hydrolyzable by aqueous alkaline processing composition to reduce the pH of the composition as a function of alkaline hydrolysis of the polymer by the composition after dye image-forming material has been mordanted in the layer. The polymer may be a polycarboxylic acid ester e.g. cellulose acetate which may contain an acetate substituent ratio of 1À5-2À8, preferably 2À3 acetate groups per anhydroglucose unit of the cellulosic polymer backbone, poly (methyl or ethyl methacrylate) or styrene carboxylic acid methyl or ethyl ester. The polymer may be an alkali hydrolyzable salt of a strong acid and a weak base. The material may also contain a neutralizing layer to further reduce the pH.
Patent GB-1236648-A (GB)
Title: Apparatus for removing toxic substances and/or excess water from the blood
Inventor: SIROTKINA MARIA GAVRILOVNA
IPC: A61M1/22
Filed: 1968-06-13
Abstract: 1,236,648. Plate dialyser. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT KHIRURGICHESKOI APPARATURY I INSTRUMENTOV. 13 June, 1968 [13 June, 1967 (4)], No. 28205/68. Heading B1X. [Also in Division A5] A plate dialyser device for blood (Fig. 2) comprises a plurality of blood inlet pipes 23 each supplying blood into capillary canals 22 having walls formed by semi-permeable membranes 16 (Fig. 3), an inlet manifold for supplying blood to the inlet pipes, a plurality of blood outlet pipes 24 each receiving blood from a capillary canal, an outlet manifold for receiving blood from the outlet pipes, the blood inlet pipes 23 and outlet pipes 24 being spaced alternately and a dialysing solution distributing system for passing a dialysing solution along the other side of the semipermeable membranes, as for example through channels 21 in plates 12 in Fig. 3. In the apparatus of Fig. 2, the blood enters the capillary channels through channels in adaptors 26 and openings 27 in the walls of sleeves 25, flowing through pipe 17 to pipes 23 for distribution. Outlet pipes 24 return the blood via pipe 19 to the outlet. The dialysing solution enters at 18 and flows through grooves 37 to canals 36' from which it reaches channels 21 (Fig. 3). It passes over the surface of the membranes and is collected in canal 36" for return to an external container (Fig. 1 not shown).
Patent GB-996179-A (GB)
Title: A method of constructing high viaducts made of ferro-concrete, more particularly pre-stressed concrete
IPC: E01D21/10
Filed: 1961-08-03
Abstract: 996,179. Bridges. A. MANTSCHEFF. Aug. 3, 1961 [Aug. 5, 1960], No. 28281/61. Heading E1G. A method of constructing high bridges of ferro-concrete comprises constructing the superstructure in sections near the ground, each section being associated with a pier, then raising the sections individually to their final positions by lifting devices and connecting the sections together, the gaps between them being closed by e.g. concreting. As shown, each section 11 is built above the foundation 12 of a pier 13 and pistons 16, 18 suspended from the undersurface of the section are supported on concrete or other slabs 19 piled on the foundation 12. The pistons are actuated to raise the section 11 and other slabs 20 are inserted below the section. The pistons are retracted and the section is then lowered on to the slabs. Further slabs are inserted below the pistons and the lifting process is repeated until the section 11 is at the desired height. The slabs 19 and 20 may be formed with reinforcements which are connected to reinforcements inserted in the pier 13. The slabs are concreted in as the pier is formed. As shown at 11b a section may be built at right angles to its final position and then rotated through 90 degrees. The sections are connected together by reinforcing elements (not shown) and the gaps 24 filled in by e.g. concreting. Further reinforcements may be drawn through the length of the bridge and prestressed. In an alternative method in which the piers are built before the superstructure, each superstructure section is built around a pier, the resulting aperture in the section being concreted in after the section has been lifted to its final position. The lifting method differs from that described above in that the slabs 19, 20 are stacked on the ground and are dismantled when the section is in its final position.
Patent GB-618238-A (GB)
Title: Improvements in or relating to carburetting apparatus for internal combustion engines
IPC: F01L5/20
Filed: 1945-10-26
Abstract: 618,238. Carburetting apparatus. RUDAWSKI, T. Oct. 26, 1945, No. 28328. [Classes 7 (ii), 7 (iii) and 7 (vi)] The air inlet of a casing 1 completely enclosing a carburetter 3, is closed by a filter 5, the other end of the casing having a duct 11, controlled by a reciprocating valve 13, connecting the carburetter to the engine crank-case. The casing may be integral with the engine block or fitted thereto. The slide-valve 13 is reciprocated by bell-crank levers 16, 17, working in recesses in the crank-case and operated by eccentric grooves 19 in the fly-wheel. The filter 5 is covered by a water-tight member 6, preferably of rubber, having an inlet 7 to which may be fitted an extending tube for operation below water. The carburetter controls 8 and fuel pipe 10 enter the casing through rubber seals 9.
Patent GB-614410-A (GB)
Title: Improvements in or relating to coupling devices
IPC: F16D15/00
Filed: 1945-10-29
Abstract: 614,410. Friction clutches. ENQUIST, G. T. H. Oct. 29, 1945, No. 28560. [Class 80 (ii)] [Also in Group XXXIV] In a friction clutch or brake between a shaft and a member sleeved thereon, of the kind having oppositely-acting friction ratchets mounted in one member and engageable with the other to prevent relative rotation, disengagement is effected by relative axial movement of the members to bring the friction ratchets opposite a freely rotatable ring mounted in the other member. As shown, shafts 11, 20, Fig. 6, either or both of which may be rotatable, are connected and disconnected by sliding a sleeve 13 splined to the shaft 11 to the right or left so that spring-pressed balls or rollers 14, Fig. 7, mounted in a squared recess 24 in the shaft 20 coact either with the sleeve 13 or with a freely rotatable ring 16 mounted therein. A stop 17 limits the movement of the sleeve 13, which may be constructed in two parts to facilitate assembly. A modification has a sleeve integral with one shaft end and a, ratchet recess 7, Fig. 5, of elliptical cross-section, in which case either balls or segmental ratchets 9 may be used. In Figs. 9 and 10 (not shown), the squaresection ratchet recess is in the outer member, which is a spur gear slidable along its shaft to coact directly therewith or with the outer race of a ball-bearing mounted therein.
Patent GB-812532-A (GB)
Title: A device for positioning and driving records for multiple selection electric record players
IPC: G11B17/24
Filed: 1957-09-10
Abstract: 812,532. Phonographs. FOUFOUNIS, J. T. Sept. 10, 1957 [Oct. 1, 1956], No. 28585/57. Class 40 (2). In a magazine gramophone each record 1 (see diagrammatic Figs. 4 and 5) is clamped to a separate turntable which is smaller in diameter than the unrecorded centre portion of the record. A number of these assemblies, each mounted for free rotation on a supporting arm 8, are disposed around a circle 17. At the centre of the circle is a unit comprising a motor driving a roller 4 which may be brought into contact with a flange 6 on each turntable and two pickups mounted on a duplex arm 7 which is simultaneously moved to a position for one of the pick-ups to engage the first groove of the record to be played. In the practical construction shown in Fig. 7 the record 46 is clamped to a turntable having a flange 50. The plate 28 can rotate in the bearing 26 relative to the base plate 25 which carries the supporting arms 8. Mounted on the plate 28 is a motor 29 driving a roller 30 and hence the driving plate 35 and the flange 50. A separate motor 44 has a screwed shaft 43 on which runs a nut 42 attached to an arm 38 which passes through a slot in the pickup arm 37. Movement of the nut down the shaft withdraws the pick-up arm from between the records, and the driving plate 35 from engagement with drive roller 30 and the flange 50. A pin 51 co-operates with a projection 51<SP>1</SP> to bring the pick-up arm against the stop 52, which positions the pick-up above the first groove of the next record to be played. The motor 44 is controlled by relays and contacts closed when the pick-up arm reaches the limits of its travel.
Patent GB-1022722-A (GB)
Title: Semiconductor laser operated coincidence device
Inventor: BREWSTER ARTHUR EDWARD
IPC: H03K19/14
Filed: 1963-07-19
Abstract: 1,022,722. Semi-conductor lasers. STANDARD TELEPHONES & CABLES Ltd. July 19, 1963, No. 28624/63. Heading H3B. A " coincident " condition is detected by a semi-conductor laser when a desired combination of electrical inputs is achieved. In Fig. 2, the threshold current of a laser 10 is exceeded when the bias current from a source 11 is augmented by current from either or both, as the case may be, of inputs 12, 13, to provide an OR-gate, or an AND-gate. Alternatively, there may be no bias current, the laser being activated by the simultaneous appearance of six inputs. In Fig. 3, the resistance of the bias circuit is decreased, to bring the bias current from a source 15, or sources, above the laser threshold, upon illumination of either or both, as the case may be, of photo-conductive devices 16, 17. The illumination may be from other lasers. In Fig. 4 (not shown), the laser threshold is exceeded when a photo-electric device 18 is illuminated by either (OR-gate) or both (AND-gate) of two sources.
Patent GB-483577-A (GB)
Title: Improvements in or relating to the manufacture of organic acids and esters
IPC: C07C51/12
Filed: 1936-10-21
Abstract: Aliphatic acids and/or their esters are produced by reacting carbon monoxide with an alcohol (or a compound such as an ether ester or halide which yields an alcohol on hydrolysis) in the presence of a liquid phase comprising water and a boron-halogen compound.  The organic products are not combined as a complex with the boron halide but may be removed by simple distillation.  The reaction may be effected below 350 DEG  C., and under pressure such as 350-1000 atmospheres or more.  The catalyst is preferably an aqueous solution of boron fluoride; oxygen-containing acids such as hydrofluoboric acid obtained from boric acids and hydrofluoric acid may also be used.  A promoter such as nickel, nickel oxide or other metal or metallic oxide may be used with the boron halide. Preferably, the water present does not exceed 5 molecular proportions to one of boron halide.  Primary, secondary, and tertiary alcohols may be treated to produce the corresponding monocarboxylic acids, and polyhydric alcohols such as 1,3-propylene glycol, decamethylene glycol and tetrahydroxy furane may be converted to polycarboxylic acids.  In examples: (1) and (2) carbon monoxide is passed into an autoclave containing molecular proportions of methanol, or ethanol and boron fluoride with 3 molecular proportions of water, at 700 atmospheres pressure and 260 DEG  C., yielding acetic or propionic acid; (3) liquid hydrofluoric acid is added to orthoboric acid in a pressure vessel cooled to 10 DEG  C. which produces a liquid containing one molecule of boron fluoride to three of water; methanol is added, and carbon monoxide is admitted at 600 atmospheres and 260 DEG  C., yielding acetic acid.  In the distillation of the reaction product to obtain the acid it is preferred to add water so that there shall not be less than 2 molecules of water to one of boron fluoride to avoid production of hydrofluoric acid.  Specification 478,246 is referred to.  The Specification as open to inspection under Sect. 91 includes the use of catalysts comprising water and a halide of an amphoteric element or an element which forms a weak base, the following being mentioned: the chlorides, bromides, iodides and fluorides of magnesium, calcium, titanium, antimony, boron, aluminium, beryllium, zirconium, hafnium, columbium, sulphur, silicon, phosphorus, tantalum, chromium, vanadium, tungsten and molybdenum.  It is stated that an alkyl amine may be used instead of an alcohol.  This subject-matter does not appear in the Specification as accepted.
Patent GB-841672-A (GB)
Title: Improvements in or relating to means for conveying annealed material in annealing furnaces
IPC: F27D3/02
Filed: 1958-09-08
Abstract: 841,672. Rollerway conveyers for furnaces. ULMKE, H. Sept. 8, 1958 [Sept. 11, 1957], No. 28781/58. Class 51 (2). [Also in Group XXX] A rollerway conveyer for use in an annealing furnace treating pipes, rods &c., comprises rollers 1 alternating with guide aprons 2, each apron being inclined at about 5 degrees to the horizontal and having a free end resting on a roller slightly below its crown, the other end having elongated sockets 4 resting on tubular supports 5. Bearing members 6 to which supports 5 are detachably or permanently fixed are recessed into the furnace hearth.
Patent GB-1506299-A (GB)
Title: Cathode ray tube including meand for enabling display of parts of a non-recurrent waveform at the end of a sweep superimposed on earlier parts of the waveform
IPC: G01R13/22
Filed: 1975-07-09
Abstract: 1506299 Cathode-ray tube circuit TEKTRONIX Inc 9 July 1975 [4 Sept 1974] 28845/75 Heading H4T A cathode-ray tube for providing a display of a non-recurrent or recurrent waveform comprises vertical deflection means, horizontal deflection means providing the time base, and means for applying an additional deflecting voltage to at least the horizontal deflecting means so that an end part of the waveform may be superimposed on an earlier part. The waveform a, to be displayed, Fig. 3, is amplified at 2 and applied to vertical deflection plates 7, 8 whilst sweep generator 14 is triggered to apply a sawtooth voltage across plates 9, 10. <SP>c</SP>Comparator 17 compares the sawtooth voltage with a preset level to produce a signal d, wherein the position of the step is adjusted by potential divider 21. This signal is inverted 32, and its level adjusted by potentiometers 24, 25 from where the negative going step is added to at least the horizontal deflecting voltage Fig. 3g. This has the effect of shifting the spot on the cathode-ray display back to an earlier position, i.e. to the left, so superimposing the end of the waveform on an earlier part Fig. 3h. Generally no vertical displacement is required so the signal fed to the vertical amplifier has a zero amplitude step, Fig. 3f. Potentiometers 24, 25 may have gauges to indicate the voltage step fed to the amplifiers and the comparator may be provided with an inhibit switch so that recurrent signals may be conventionally displayed.