baber/WOPTO huggingface dataset:
Patent GB-1393850-A (GB)
Title: Dosage unit containing a drug having a topical effect on the eye and a method of preparing same
Inventor: RYDE E M
IPC: A61K9/00
Filed: 1973-11-29
Abstract: 1393850 Eye treatment PHARMACIA AB 29 Nov 1973 [30 Nov 1972] 55364/73 Addition to 1360927 Heading A5B Dosage units for drugs having a topical effect on the eye, comprising a solid, shaped body intended to be inserted in the cavity of the eye are prepared by moulding, pressing or punching a dispersion of the constituents of a mixture of 5-90% of at least one lipophilic substance having a melting point of 37-75C, 0-40% of at least one water-soluble or waterswellable polymer in solid powder form, 0.05- 30% of at least one drug showing a topical effect on the eye and, for stabilising the mixture, either 10-80% of at least one surface active higher aliphatic alcohol having 12-22 carbon atoms or 0.2-20% of at least one water-insoluble lipophilic polymer having a softening temperature exceeding 70C and having a melting point exceeding 85C which is soluble in the lipophilic substance(s) in molten form, the percentages being percentages by weight calculated on the total weight of the mixture the body having a largest dimension from 2 to 20 mm. The lipophilic substance may be a hydrocarbon (such as a paraffin), a wax (e.g. beeswax), or a fat (such as a glycerol ester of a fatty acid), or mixtures of these substances; the surface active higher alcohol may be 1-docosanol, 1-hexadecanol, 1-octadecanol, 1-dodecanol, 1-tridecanol, 1-tetradecanol, 1-heptadeconol, 2-heptadecanol, 9- heptadecanol 1-eicosanol and/or 2-eicosanol; the water-soluble or water-swellable polymer may contain hydroxyl, amino, amide and/or carboxyl groups and examples include dextran, hydroxyalkyl dextran, carboxymethyl dextran, hydroxyalkyl cellullose, alkyl cellulose, carboxymethyl cellulose, polyvinyl alcohol dextrin, starch, polyvinyl pyrrolidone and polyalkylene glycols; the water-insoluble lipophilic polymer may be an aliphatic polymer such as polyvinyl acetate, ethylene-vinylacetate copolymer, polybutylenemethacrylate, polyethylene, polypropylene or ethylene-propylene copolymer; and the drug shownig a topical effect on the eye may be a drug for glaucoma therapy e.g. pilocarpine, physostigmine, synstigmine, ascorbic acid or guanethidine; a substance having a mydriatic effect such as metaoxedrin, or atropine; a sulphonamide e.g. sulphisoxazole or sulphamethizole; an antibiotic such as chloramphenicol or tetracycline; a glycocorticoid such as hydrocortisone or prednisolone, an antivirus agent such as idoxuridine or an antihistamine.
Patent GB-1139060-A (GB)
Title: Ribbon feed mechanism
IPC: G05F3/24
Filed: 1966-12-12
Abstract: 1,139,060. Ink-ribbon mechanisms. INTERNATIONAL BUSINESS MACHINES CORP. 12 Dec., 1966 [30 Dec., 1965], No. 55460/66. Heading B6F. An ink ribbon mechanism for a proportional letter spacing typewriter making use of a single use carbon transfer ribbon 12 is provided with a drive which is actuated following typing of a letter to advance the ribbon by an amount corresponding to the width of the letter. The drive comprises a pinion 51 which is driven by the proportional escapement neck 58 through an angular position corresponding to the width of the last printed letter, the pinion 51 being associated with a slidable positioning clutch 37 including a toothed upper clutch member 48 and a serrated lower clutch member 39 which displaces a ribbon feed member 35 towards the feed member actuating finger 36 mounted pivotally on a pin 74 and having a depending lug 73 which engages an arm 72 of a clutch release member 68 when the finger 36 is actuated by cam 76 mounted on the shaft 77 driving a type head carriage through a one revolution clutch (not shown). Lug 73 rocks the cam release member 68 provided with a further arm 70 which through its pin rooks a latch member 64 out of engagement with a lug 66 of a bell-crank 59 which pivots upwardly about its pivot 62 to move its associated pin out of contact with the upper surface of clutch member 39 which is disengaged to permit the finger 36 to engage the angularly displaced ribbon feed member 35 and rotate the latter counterclockwise which drives a shaft 27 through a one-revolution coiled spring clutch 33. Shaft 27 imparts its rotation through gears 25, 24, 23 to a ribbon driving roller 18 which co-operates with a spring-biased roller 17 to advance the ribbon by the increment corresponding to the width of the last printed letter.  Ribbon spools.-Carbon transfer ribbon 12 is supplied from a spool 13 which is mounted on a hub 15 of a support plate 14 and after passing through guides and ribbon driving rollers 17, 18 the ribbon is wound temporarily on the hub of a take-up spool 20 formed by a core 42 and bifurcated shanks 91 which are passed through diametrally opposed openings 93 at the roof of the core 92, the hub being larger when the ribbon 12 is wound. Retraction of shanks 91 reduces the diameter of the core and permits removal of waste ribbon by tilting the take-up spool upside down. Tensioning of the take-up spool 20 is effected by a gaiter spring 30 passed about a driving pulley of a larger diameter and a driven pulley 29 of a smaller diameter and fast with the bifurcated shanks, the gaiter spring slipping over the pulley 29 to keep the ribbon 12 under tension.
Patent GB-1271920-A (GB)
Title: A laser head
IPC: H01S3/093
Filed: 1970-11-23
Abstract: 1,271,920. Lasers. COMPAGNIE GENERALE D'ELECTRICITE. 23 Nov., 1970 [3 Dec., 1969], No. 55531/70. Heading H1C. [Also in Division G2] A laser pumping light reflector consists of a reflective sheet 5 removably located by its elasticity against the inner wall of a hollow housing 4, the adjoining edges 8 of the sheet being parallel to the axis of the housing and preferably spaced apart so as to permit thermal expansion without distortion of the reflector. In the arrangement shown the reflector is constrained by the housing to the form of an elliptical cylinder, a doped glass or ruby active medium rod 2 and a parallel pumping discharge tube 3 being positioned at respective foci. The reflector may consist of a polished nickel sheet on which is deposited a gold reflective layer 6 and a silicone monoxide protective coating 7.
Patent GB-1162107-A (GB)
Title: A Magnetoresistive Head
IPC: G11B5/53
Filed: 1966-12-20
Abstract: 1,162,107. Magneto resistive head. AMPEX CORP. 20 Dec., 1966 [19 Jan., 1966], No. 57025/66. Heading G5R. A magneto-resistive playback head for magnetic tape comprises a thin film 12 of material of low magnetic anisotropy e.g. nickel-iron alloy, ferrite or semi-conductor material deposited on a glass or like substrate 14 with its magnetically easy axis 15 disposed transverse to the tape 16 direction and a high impedance current source 19 connected in series with the film. Output terminals 20 are connected across the film and a magnetic bias field transverse to the film is applied by electromagnet 22. Multi-channel and rotary head assemblies are also described.
Patent GB-1223070-A (GB)
Title: Improvements relating to folding hoods for vehicles
IPC: B60J7/12
Filed: 1969-11-21
Abstract: 1,223,070. Hood linkage. DAIMLERBENZ A.G. 21 Nov., 1969 [22 Nov., 1968], No. 57063/69. Addition to 1,110,640. Heading B7B. For correct stowage of the hood described in Specification 1,110,640 it is essential that the rear hoop stick 5 is raised sufficiently for the nose part 18 to move past the roller 13 before the main bow 1 is pivoted and this is ensured by the resiliently pivoted member 20 which engages under the main bow 1 to prevent its movement. Downward movement of the nose 18 engages the bent over end 21 of the member 20 to pivot it outwardly from under the main bow 1 when the nose 18 has passed the roller 13.
Patent GB-1451088-A (GB)
Title: Tilt mounting heads
IPC: F16M11/12
Filed: 1973-12-10
Abstract: 1451088 Tiltable mountings for cameras &c. W VINTEN Ltd 4 Dec 1974 [10 Dec 1973]  57134/73 Heading A4H [Also in Division G2-3] A tiltable mounting for an article such as a camera, radar parabolic aerial, comprises a mounting frame 9, a tiltable support member 12 to which said article 14 may be secured, generally vertical pantographical linkage 1, 2, 3, 4 operably connecting the support member 12 above frame 9 and load bearing means 11 on link 2 moveable along substantially horizontal guide means 10 on frame 9 so that, in use, when support member 12 is tilted, the c. of g. 13. of the article carried thereby moves in a substantially horizontal path. Load bearing means 11 comprises a cam follower and is adjustable along link 2. Frame 9 is mounted on a plate (15) for rotation about a verticle axis and is locked by a friction brake. An adjustable clutch (29) provides a false "feel" in the tilting plane. The article is located by a locking screw (34) moveable longitudinally on member 12 by a screw (35). Panning and tilting are controlled by an adjustable arm (32).
Patent GB-1392639-A (GB)
Title: Apparatus for producing helical fluted workpieces
IPC: B23B5/48
Filed: 1972-12-12
Abstract: 1392639 Machining helical grooves J S BECKLEY 11 March 1974 57219/72 Heading B3T Apparatus for machining helical grooves in a curved elongate workpiece comprises a rotary table 9 having a coaxial central aperture 12 extending therethrough independently driven powered cutting means 14 radially adjustably mounted on the table, a pivotable work supporting arm 1 having a pair of transversely extending arm members with pivotably mounted chucks 2, whereby a workpiece is supported extending through the central aperture in the table. The arm 1 is pivotable about an adjustable bracket 4 which is displaceable by way of a lead screw 5 the pivoting of the arm being effected by an hydraulic actuator 16 connected to the arm member and to the frame 17 of the apparatus. The table 9 is rotatable in bearings on the machine frame and is driven by a chain and sprocket drive 13, 29 from a shaft 27 through a bevel drive 23, 24 which is actuated by a rack 18 and gear 20. The rack 78 is connected to the arm member and hence operation of the hydraulic actuator causes simultaneous pivoting of the arm and rotation of the table- and thereby machining a helical groove in the workpiece by the power driven cutting means.
Patent GB-1416359-A (GB)
Title: Refractory compositions
IPC: C04B35/047
Filed: 1973-12-11
Abstract: 1416359 Refractory composition KAISER ALUMINUM & CHEMICAL CORP 11 Dec 1973 57344/73 Heading C1J A refractory composition comprises 20-80% prereacted grain, i.e. a sintered admixture of from 20-80% magnesia and 80-20% chrome ore substantially free from unreacted chrome ore particles, the magnesia and chrome ore prior to sintering being substantially - 100 mesh (Tyler), the balance of the composition comprising 15-55% unreacted magnesia and 0- 55% unreacted chrome ore, all percentages being by weight. Bricks or other shapes may be made by firing the composition. In most of the examples, particle size analyses given, at least 75% of the prereacted grain is +28 mesh, at least 90% of the unreacted magnesia is - 100 mesh and at least 45% of the unreacted chrome ore is 28 x 100 mesh, this amount exceeding that which is + 28 mesh and - 100 mesh. Some of the examples also illustrate the use of only two components in the composition and in the comparative examples the use of only chrome ore and the prereacted grain is described.
Patent GB-1241510-A (GB)
Title: Improvements relating to insect screens
Inventor: FOK WOOD KEONG
IPC: E06B9/52
Filed: 1969-11-25
Abstract: 1,241,510. Insect screens for windows &c. WOOD KEONG FOK. 25 Nov., 1969, No. 57689/69. Heading E1J. An insect screen assembly for a rectangular opening in a wall 1 comprises a rectangular wire mesh screen 2, two channel members 3 secured to opposite sides of the opening, two elongate mounting members 13 to which the upper and lower edges of the screen 2 are attached, and two further channel members 4 in which the mounting members 13 are secured, the channel members 4 being inserted and secured in the channel members 3 at the ends thereof to extend along the upper and lower edges of the opening, and the side edges of the screen 2 being received in the channel members 3. The channel members 4 each mount an elongate resilient sealing flap 12 which engages the adjacent edge of the opening. As shown, the elongate mounting member 13 comprises two bars 14 and 15 joined together by studs 16 and clamping one edge of the screen 2 therebetween. The mounting member 13 is then slid lengthwise into the channel member 4, and the members 4 are then inserted, with the screen 2, into the channel members 3. Adjustable screws 18 mounted longitudinally in the channel members 3 bear on the channel members 4 and are used to tension the screen 2; screws 17 mounted in the walls of the channel members 3 are then tightened to secure the members 4. Resilient sealing members 20 are finally inserted in the channel members 3 to secure the edges of the screen 2. In modifications, the mounting member 13 may be a metalcored plastics rod, cylindrical or with grooves, the edge of the screen 2 being wrapped therearound, and a wall of the channel member 4 being correspondingly shaped and deformable to grip the member 13 when the screw 17 is tightened. The channel members 3 may be combined with mountings for a set of adjustable louvres or a set of guard bars which extend across the opening.
Patent GB-1338289-A (GB)
Title: Mechanical-pneumatic converter
IPC: F15B5/00
Filed: 1971-12-13
Abstract: 1338289 Speedometers HOERBIGER VENTILWERKE A G 13 Dec 1971 [11 Dec 1970] 57811/71 Heading G1K [Also in Division G3] A device for converting a mechanical torque, e.g. as exerted on an induction disc 4 by a permanent magnet 3 rotated with a shaft 2 of a speedometer, into a corresponding pneumatic output signal includes a torque-receiving body 6 housed in a casing 1 and having two oppositely disposed recesses 7, 8 each housing a disc-shaped brake body 9, 10 rotatably mounted in the casing 1, the rotation axes of the brake bodies 9, 10 and of the body 6 being parallel, one brake body 9 having a bore 17 and an outlet nozzle 16 connected to a compressed air line 18 and the other brake body 10 having a spring biassed ball 24 to exert a counterforce on the body 6, so that as the body 6 tends to rotate movement of a ball 21 at the outlet nozzle effects adjustment of the crosssection of its orifice and thus changes the air inlet pressure as measured on line 20, this pressure giving a measure of the applied torque. By manually rotating the brake bodies 9, 10 in casing 1, the proportionality factor and zero point of the converter can be respectively adjusted.
Patent GB-1344857-A (GB)
Title: Detuerated organic compounds
IPC: C07B31/00
Filed: 1971-12-13
Abstract: 1344857 Deuterated organic compounds MERCK SHARP & DOHME (I.A.) CORP 13 Dec 1971 [17 Dec 1970] 57834/71 Heading C2C Saturated acyclic ethers, alcohols, mono-, di-, or polycarboxylic acids, esters and amides (C 4 -C 18 ) with a B.P. of at least 100‹ C. are deuterated by mixing the saturated or unsaturated analogue in the liquid state with deuterium gas in the presence of a metal of Group VII or Group VIII of the Mendeleef Periodic Table until from 50 to 99À5% of the hydrogen atoms have been replaced. A temperature below the boiling point of the compound is used and the catalysts are preferably palladium, platinum, rhodium, ruthenium, osmium, iridium, nickel and rhenium on conventional supports. Examples describe the preparation of deuterated palmitic, stearic and lauric acids, dibutyl, diethyl sebacate, ethyl laurate and stearate, dipropyl adipate, tripropionin, di-n-octyl ether, bis - (2 - ethoxyethyl)ether, bis - (2 - methoxyethyl)ether, triethylene glycol dimethyl ether, 1-dodecanol, and N,N-dimethylacetamide.
Patent GB-1146870-A (GB)
Title: Catalyst compositions
Inventor: PARKS-SMITH DAVID GRANVILLE
IPC: C07C45/35
Filed: 1966-12-28
Abstract: 1,146,870. Oxidation of alkenes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 Oct., 1967 [28 Dec., 1966], No. 57975/66. Heading C2C. [Also in Division B1] Alkenes may be oxidized to alkenals and/or alkenoic acids using a catalyst comprising TeO 2  supported on TiO 2 , the preparation of which comprises co-precipitation of at least part of the TeO 2  with the TiO 2 . The catalyst may also comprise molybdenum oxide and phosphorus. In the examples, acrolein is produced by passing propene over the heated catalyst.
Patent GB-1419787-A (GB)
Title: Fuel additives
IPC: C10L1/18
Filed: 1972-12-15
Abstract: 1419787 Fuel additive DRUNER CHEMIE GmbH 15 Dec 1972 58097/72 Heading C5G An additive composition for liquid hydrocarbon fuels comprises a mixture of (a) 20 to 50 vol. per cent of a petroleum hydrocarbon having a boiling range of 90-150‹ C., (b) 40 to 79À4 vol. per cent of a gas oil with boiling range 248-325‹ C., (c) 0À5 to 4 vol. per cent of an n alkyl sulphate with 8 to 18 C atoms in the alkyl chain and/or 0À5 to 6 vol. per cent n alkylanyl sulphonate with 8 to 18 C atoms in the alkyl chain, and (d) 0À1 to 2 vol. per cent of a fatty acid monoester of a polyethylene glycol.
Patent GB-1204856-A (GB)
Title: Improvements in or relating to frames for stacking pallets
Inventor: EAGLAND HAROLD WALKER
IPC: A47B87/02
Filed: 1966-12-30
Abstract: 1,204,856. Stacking pallets; pallet stacking frames. PALLETOWER Ltd. 23 Oct., 1967 [30 Dec., 1966], No. 58251/66. Headings B8C and B8H. In a method of stacking pallets, a collapsible upright frame is mounted on or around a first pallet, thereby effectively extending the sides of the pallet upwardly, and a second pallet is placed on top of the frame. The frame described is in four sections 10, 11, corresponding to the sides and ends of the pallet 13, and fitting slidably together at the upright corners. Each section has a strut 12 for strengthening. Top plates 14 and angles 15 provide a support for a second pallet 16, and another frame may be placed on top to allow further stacking. The end post 17 of each side section 10 is of hollow section, Fig. 2, and has a slot 18 to accommodate a flange 19 on post 20 of the end section 11. The flange 19 is cut away at the top so that the plates 14 and angles 15 can lie flush. The flange is also cut away at the bottom, and the end of the post 20 may either extend to the ground to take the weight of the frame and of higher pallets, or the cross-bar 22 of section 11 may rest on the pallet, in which case the load is on the pallet 13. The frame is erected by first placing the end sections 11 in position and then sliding the side sections 10 into engagement with the sections 11 from above. In a modification (not detailed), the frame may be shaped to fit non-rectangular pallets.
Patent GB-1376798-A (GB)
Title: Method and apparatus for folding and sewing hems
IPC: D05B65/00
Filed: 1972-12-19
Abstract: 1376798 Folding edges P E BURTON 19 Dec 1972 [29 Dec 1971 (2)] 58502/72 Heading B5K [Also in Division D1] A sheet of material 35 being moved parallel to its edge by a belt 55a has its edge turned over by a portion 74 of the belt which is itself folded over by a guide 72. As shown the edge of the sheet passes under a presser foot 70 and is folded over by a fixed guide 68, 69, 71 before reaching the folded over portion of the belt 55a. The double folded edge then passes below member 75 and the belt edge allowed to uncurl. The folded edge is later sewn.
Patent GB-1463298-A (GB)
Title: Method for making polyetherimide and products produced thereby
IPC: C08G73/10
Filed: 1973-12-21
Abstract: 1463298 Aromatic polyetherimides GENERAL ELECTRIC CO 21 Dec 1973 [29 Dec 1972] 58791/73 Heading C3R A method of making a polyetherimide comprises (1) effecting reaction between one or more aromatic bis(etheranhydrides) and one or more diamines H 2 N-R-NH 2  in a mixture consisting essentially of the specified reactants and an organic solvent at at least 130‹ C. while effecting removal of water of reaction and (2) separating the polyetherimide from the resulting mixture consisting essentially of polymer and solvent. R is one of a number of defined aromatic radicals and R<SP>1</SP> is one of a larger number of defined radicals including C 2-20  alkylene or cycloalkylene and alkyleneterminated polydiorganosiloxane as well as aromatic radicals. The polyetherimides per se are claimed in Specification 1,463,300 except for those produced by the present process, which are disclaimed therein apart from the specific products of certain examples which are disclaimed in the present Specification. Specified reaction solvents are various hydrocarbons and halohydrocarbons; water is preferably removed azeotropically. In step (2) the polymer may be precipitated in methanol, washed and dried. The recovered polymer may be injection moulded or dissolved, e.g. in methylene chloride, chloroform or N,N-dimethyl-form- or -acet-amide and cast to form a film; it may be reinforced with fillers, e.g. perlite, fume silica, carbon whiskers or glass fibres. It may have 5 to 500 repeating units and phthalic acid or amino end groups. Reference is made to Specification 1,393,835 in respect of the dianhydride and its preparation. Reference has been directed by the Comptroller to Specifications 1,289,491 and 1,357,396.
Patent GB-596691-A (GB)
Abstract: 596,691. Radio direction-finding. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation.). July 17, 1945, No. 18342. [Class 40 (v)] Under conditions of multi-path transmission a null-type direction finder gives a definite bearing indication only when the direct and reflected signals are completely in phase or in anti-phase. When the components are in phase the apparent bearing is defined by the vector Rl, Fig. 1, MA and MB representing in magnitude and direction the direct and 'reflected signals. When the signals are in antiphase the effect is the same as that which would be produced by the arrival of the indirect signal on the reciprocal bearing (M1B) and the apparent bearing is defined by vector R2. If the relative path lengths change owing to movement of the reflecting or receiving point, directional determinations corresponding to vectors R1, R2 will be obtained Alternately. This effect is made use of to enable the true bearing of a source to be determined, by observing on a cathode ray-type direction finder the magnitudes and bearings corresponding to vectors R1, R2, and employing a linkage to define the median line of the triangle formed by the vectors, the direction of the median line corresponding to the true bearing. An Adcock aerial system 12, Fig. 2, with a goniometer 15 feeds a detector 17, giving full wave rectification. The output of the detector is fed through an inverter 23 and amplifier 24 to a rotary resistance distributer 19 converting the voltage wave form applied to it to two phase energy having an envelope corresponding to the applied wave form. The rotor of the distributer 19 is synchronized with the search coil of the goniometer 16, and the two outputs of the distributer 19 are applied to the deflection system of a C.R.T. 22 to provide a rotating field sweep with the radial magnitude of the sweep varying in accordance with the envelope of the detector output. The detector output is also applied to a smoothing network 27 similar to an A.G.C. circuit, the output of which provides a bias for the amplifier 24 varying with the average magnitude of the detector output. Preferably the polarity of the bias is such that the smaller the detector output the less is the amplifier gain, and due to the inversion of the signal wave form, the magnitude of the radial cathoderay sweep is a maximum when the received signal is at a minimum. This arrangement gives a trace as indicated at 10 (or 11) in Fig. 3, the magnitudes of the indications 10 and 11 being proportional to R, and R2, Fig. 1, respectively. A linkage, Fig. 5, is arranged on the face of the C.R.T. 22. The arms 29, 30 pivoted together at the point 31, which coincides with the centre of the screen, carry slides 32, 32<1> connected together by a lazy tongs system 33, the mid-point of which is slidably connected to a pointer 34, also pivoted at the point 31. When the arms 29, 30 are aligned with indications 10, 11 and the slides 32 are set along the arms at distances equal to the magnitudes of these indications, the pointer indicates the bearing required.