baber/WOPTO huggingface dataset:
Patent GB-1242234-A (GB)
Title: Improvements relating to abrasive articles, particularly grinding wheels
Inventor: TEAGUE ERNEST DOUGLAS
IPC: B24D7/06
Filed: 1967-12-21
Abstract: 1,242,234. Abrasive articles. NORTON ABRASIVES Ltd. 19 Dec., 1968 [21 Dec., 1967], No. 58016/67. Heading C4V. [Also in Divisions B3 and C7] An abrasive article, such as a grinding wheel for operation by grinding and electrolytic erosion, comprises electrically conductive material, non-diamond abrasive and diamond, the last being in lesser proportion by volume than the non-diamond abrasive and the diamond content in the usable portion of the article being less than 3.125% by volume. The diamond proportion may be less than 1 %. The body 3 of a cup wheel, Fig. 1, comprises an electrically conducting non-diamond abrasive containing composition; at spacings of, e.g. 90 degrees, arc inserts 4 extending over the annular operative surface 2. The inserts may be formed of the same composition as the body except that part or all of the non-diamond abrasive is replaced by diamond. A cylindrical grinding wheel, Fig. 2, has diamond containing inserts 8. To provide the inserts 4, 8, slots may be cut in the wheel and preformed inserts cemented into place; the cement may or may not be electrically conducting. Preferably, however, the diamond containing composition is incorporated in the " green " wheel body prior to moulding. Abrasive articles may be made by standard powder metallurgy techniques; when wheels are required which may be dressed to special forms, synthetic resin bonded wheels may be made, e.g. as described in Specification 991,143. The conducting material may be a metal, e.g. copper, bronze or silver, or may be graphite. The metal or graphite may serve also as bonding agent. In the manufacture of a wheel as in Fig. 2 the body is produced having the composition:- Slots are cut in the wheel body to accommodate the inserts 8 which are preformed and have the composition :-  The amount of diamond contained in the inserts is equivalent to 0À2% by volume of the usable portion of the wheel.
Patent GB-1404268-A (GB)
Title: Table top packing machines
IPC: B65B7/26
Filed: 1973-12-14
Abstract: 1404268 Closing containers VEFI AS 14 Dec 1973 [15 Dec 1972] 58080/73 Heading B8C A machine for use in packaging goods in containers with hinged lids has an endless belt conveyer 10 to feed the containers to a closing station having a rotor wheel 32 having radially extending spokes 34, 36, the containers engaging the spokes 34 to rotate the wheel while spokes 36 press the fastening elements of the lid and container together. The lid is folded over onto the container by a pivoted yoke 52 and an upwardly inclined leading edge portion 42 of a cover plate 40. The belt 10 has cleats (24) which feed the containers from a magazine via a manual filling station to the closing station and which form an anvil during the fastening operation. There may be a spoke 36 for each fastening element of a lid. The spokes 34 may be plateshaped. A spoke 34 and a spoke 36 may be arranged as a fork.
Patent GB-1434779-A (GB)
Title: Optical instruments for examining conditions in binocular vision
IPC: A61B3/08
Filed: 1973-12-19
Abstract: 1434779 Sight-testing FISBA OPTISCHE PRAZISIONS-INSTRUMENTE AG 19 Dec 1973 [16 Feb1973] 58780/73 Heading G2J [Also in Division A5] A synoptophore comprising a pair of angularly adjustably horizontal arms 2 (one only is shown in the Fig.) each bearing a test plate 3 and an inclined mirror 17 for simultaneous presentation of separate images of the plates 3 to each eye 19, contains in each arm 2 an objective 14 of variable focal length so that an image may be presentated to the eye at a virtual distance corresponding to a selected angle of convergence of the arms 2, and the image increases in size as this distance decreases. The objective comprises a converging lens 21 and a diverging lens 22 in supports 23, 24 which are moveable axially by a spindle 25 rotated by a motor 31 and having threaded portions 26, 27 engaging the supports 23, 24. The portion 26 is of constant pitch, but the portion 27 has a larger pitch which increases towards the mirror 17. A light 9 illuminates symbols 4 on the plates 3. Correspondence between the angle of convergence and the required virtual distance is obtained from tables.
Patent GB-1246191-A (GB)
Title: Improvements in or relating to lubrication pumps for dry crank-case internal combustion engines
Inventor: BUCEK KAREL
IPC: F01M1/02
Filed: 1969-12-04
Abstract: 1,246,191. 246,191. Rotary pumps. TATRA NARODNI PODNIK. Dec.4, 1969 [Dec.18, 1968], No.59224/69. Heading F1F. A pump assembly for the lubrication of a dry crank-case I.C. engine comprises a first pump 9 for extracting lubricant which has collected in the crank-case and discharging it to an oil tank 5 and a second pump 2 which draws oil from the tank and delivers it to lubricate the engine. In the case of an engine mounted on a vehicle which is travelling up or down hill the liquid level 11 in the crankcase lies below the suction tube 8 for the pump 9 resulting in the possible seizing up of that pump through lack of lubrication. To remove this likelihood a partition 15 between the pumps is provided with a channel 12 through which oil from the pump 2 can pass to the pump 9 to lubricate the latter.
Patent GB-1388510-A (GB)
Title: Production of ethambutol
IPC: C07C215/20
Filed: 1972-12-29
Abstract: 1388510 Ethambutol SOC FARMACEUTICI ITALIA 29 Dec 1972 [30 Dec 1971] 60096/72 Heading C2C (+) - 2,2<SP>1</SP> - (ethylenediimino) - di - butan - 1- ol or its dihydrochloride are prepared by catalytic hydrogenation of (+)-2,2<SP>1</SP>-(N,N<SP>1</SP>-dibenzylethylenediimino) - di - 3 - buten - 1 - ol. This compound is produced by condensation of (+)- 2 - benzylamino - 3 - buten - 1 - ol with 1,2- dibromoethane. (+) - 2 - benzylamino - 3- buten-1-ol is prepared by resolving the racemate using benzoyltartaric or mandelic acid and the racemate is prepared from 2-chloro-3-buten-1-yl. N-benzyl-urethane by (1) treatment with excess alkali metal hydroxide in the warm or (2) treatment in the cold with an alkali metal hydroxide to form 3-benzyl-4-vinyl-oxazolidin-2-one which undergoes ring cleavage with excess alkalimetal hydroxide in the warm. 2-Chloro-3- buten-1-yl N-benzyl-urethane is prepared by condensation of benzylamine with 2-chloro- 3-buten-1-yl chloroformate which is prepared by reacting 1,2-epoxy-3-butene with phosgene.
Patent GB-1279320-A (GB)
Title: Solid-state delay line
Inventor: DRANGEID KARSTEN E
IPC: H03H7/30
Filed: 1969-12-10
Abstract: 1279320 FET oscillators INTERNATIONAL BUSINESS MACHINES CORP 10 Dec 1969 [20 Dec 1968] 60217/69 Headings H3T [Also in Division H1] In a field effect transistor for use as a delay line the gate electrode (which may be unitary or in several parts) has a voltage applied between its ends nearest the source and drain electrodes respectively so as to provide a depletion or enhancement zone of uniform thickness along the current path. In the Fig. 3 device a 0À2 Á layer of deposited silicon with gold-antimony source and drain electrodes has a Schottky barrier gate consisting of a 30-50  layer of chromium 34 capacitively coupled to earth along its length via silica and gold layers 35, 36. With a gate length of 1 mm., carrier mobility of 1000 cm.<SP>2</SP>/volt sec. and a V SD  of 10 volts a delay of 1 Ás. is achieved. A similar electrode structure may be applied to the gate insulation of an enhancement mode MOSFET. In an alternative structure a plurality of gates are joined by resistors, and decoupled to earth by individual capacitors. The theory of operation is discussed. The arrangement may be used as the feedback loop of an IGFET oscillator, Fig. 4 (not shown), the frequency being determined by the delay in the line which can be varied by superimposing a modulating voltage on the source-drain bias voltage.
Patent GB-1397249-A (GB)
Title: Electrical connector arrangement
IPC: H01R24/00
Filed: 1971-12-30
Abstract: 1397249 Fuseholders LUCAS ELECTRICAL CO Ltd 19 Oct 1972 [30 Dec 1971] 60804/71 Heading H2E A fuse in the form of a resistor printed on a board 35 is held between clip type terminals 38, 39 in an insulating housing 30 having a snap fit lid 31 with an integral hinge 32. The terminals 38, 39 may have respective socket and pin contacts respectively to permit connection of the fuse between lengths of cable.
Patent GB-1330697-A (GB)
Title: Rigid frame for the construction of various dismountable structures particularly a scaffolding tower
IPC: E04G1/14
Filed: 1970-12-22
Abstract: 1330697 Scaffolding tower; structural elements J LAFFARGUE J LAFFARGUE and M CAMBON 22 Dec 1970 [28 May 1970] 60936/70 Headings E1K and E1S Scaffolding is constructed from rigid frames 1 of right-angled, trapezium shape, each frame comprising two upright tubes 2, 3 connected together by a perpendicular bar 4 and an inclined bar 5, the uprights having at their ends complementary spigots 6, 7 and sockets 8, 9 in diagonal arrangement, as shown, for the connection of adjacent frames, with a set of frames arranged to define a rectangular or polygonal figure in plan at each level of the tower and alternate frames being inverted. The scaffolding may be reinforced by diagonal bracing bars, particularly at the top and base, each bracing bar 10 or 15 having at its ends tubular members 11, 12 or 16, 17 formed with spigots 13, 14 or sockets respectively for engagement with the sockets or spigots of the uprights 2, 3.
Patent GB-1371340-A (GB)
Title: Process and apparatus for texturising yarn
IPC: D02G1/02
Filed: 1970-12-31
Abstract: 1371340 Crimping yarns PLATT INTERNATIONAL Ltd 29 Dec 1971 [31 Dec 1970] 62060/70 Heading DIF A running thermoplastic continuous filament yarn is bulked by subjecting it successively to drawing, softening under a predetermined first tension by passage through a heating zone, imparting false-twist, cooling to set the twist and thereby produce crimp therein, and heating in one or two stages under similar or different predetermined constant second tension(s) in a reheating zone to modify the crimp. The crimped yarn may be overfed to the reheating zone by an amount e.g. 5-25%, which is slightly overcompensated by contraction of the yarn therewithin resulting in a melt constant tension e.g. less than 1 grm/denier. Cooling of crimped yarn and/or winding into a package may be effected under predetermined, perhaps increased tension(s). In the operation of the split-frame, draw-texturising machine shown, undrawn polyethylene terephthalate yarn 2 unwound from a cheese 4 by feed roller assembly 6 and stretched by draw roll assembly 8 proceeds to, around and in contact with, a heater 10 thence through a cooling zone 12, a pair of (false-)twisting bushes 14, 15, and feed rolls 16 to a second heater 20, through a cooling zone 32 and feed rolls 18 (permitting crimped yarn 2 to contract by as much as the intended 15% overfeed will allow) and the modifiedcrimp yarn 2 is packaged by a cross-winding head 36. The (relative) speeds of feed rolls are such as to produce the desired tension conditions. The heater 20 comprises a block 21 providing two electrically heated faces 22 and 24 in contact with which the yarn, is passed in a number of wraps by driven rollers 26, 28. In a modification, heater 20 is replaced by a heater providing two slightly convex contact surfaces insulated from each other and over which yarn may be underfed or overfed to effect upward then downward travel and be heated or heated and then cooled.
Patent GB-1241270-A (GB)
Title: Stabilized methyl chloroform composition
Inventor: MOGFORD RILEY FRANKLIN
IPC: C07C17/42
Filed: 1969-12-24
Abstract: 1,241,270. Stabilized methyl chloroform. DOW CHEMICAL CO. 24 Dec., 1969 [26 Dec., 1968], No. 62774/69. Heading C2C. [Also in Division C5] Methyl chloroform is stabilized against degradation in the presence of zinc or aluminium by the addition of methyl glycidyl ether (3- methoxy-1,2-epoxypropane) in quantities of 0À3 to 5À0 volume per cent. The stabilizers 1,4-dioxane and nitromethane may also be added in concentrations of 0À5 to 10À0% and 0À01 to 3%, respectively.
Patent GB-713464-A (GB)
Abstract: 713,464. Scavenging two-stroke engines. KREIDLER, A. Dec. 4, 1951 [Dec. 4, 1950], No. 28359/51. Class 7(2) In a two-stroke engine there is provided two oppositely disposed inlet passages 5 and 6 arranged at an angle of not more than 40 degrees to the longitudinal cylinder axis and a substantially flat - topped piston 9 which at B.D.C. partly closes the inlet ports 3 and 4; the engine may be scavenged by the air which enters the partially closed ports 3 and 4 being directed upwardly E along the cylinder walls and deflected by the cylinder head 2 so as to return towards the piston 9 in the form of a broad stream S. The inlet passages are also arranged obliquely and directed toward that part of the cylinder wall which is opposite the exhaust port 7; all the ports are of the same height. The passages 5 and 6 may be directed toward the centre of the cylinder. When the piston 9 is at B.D.C. the upper part 10, 11, covers at least a quarter and preferably a third of the height of the ports 3 and 4. The scavenging stream S forces the exhaust gases onto the piston which directs them through the exhaust port 7. Specificaticn 467,094 is referred to.
Patent GB-2012260-A (GB)
Title: 4-desacetoxy-4 alpha -hydroxyindole- dihydroindoles, pharmaceutical formulations containing them and their use as antimitotic agents
IPC: A61K31/505
Filed: 1978-11-02
Abstract: Novel compounds of the formula   <IMAGE> wherein R<2> is CH3 or CHO; when taken singly R<5> is H and one of R<3> and R<4> is OH or H and the other is C2H5, and when taken together R<4> and R<5> form an  alpha - epoxide ring and R<3> is C2H5; when taken together R<6> is H and R<7> is OR' and when taken together R<6> and R<7> are oxo; R<1> is H or acetyl and R is OCH3 or NHNH2 with the proviso that if R is NHNH2, R' is H; and pharmaceutically acceptable acid addition salts thereof, which may be prepared by oxidation of the 4 beta - hydroxy compound optionally followed by modification of the oxo group formed, are useful as antimitotic agents.
Patent GB-2007606-A (GB)
Title: Wheel Embellisher for Ventilated Disc Wheels
IPC: B60B7/10
Filed: 1978-11-09
Abstract: A wheel embellisher 1 for ventilated disc wheels having air intake openings 7 in the wheel body. The embellisher comprises a disc 10 the outer rim 16 of which lies adjacent to the outer rim flange of the wheel and defines an air outlet gap therewith. The axially inner side of the disc carries fan blades 2, the radially outer edges of which extend substantially to the outer periphery of the embellisher disc. The fan blades in use draw air over the brake and expel that air via the outlet gap 2. The embellisher may be substantially laminar or it may comprise a plurality of concentrically adjoining portions which are axially offset with respect to one another. The fan blades may be straight or curved longitudinally and they may be flat or helical and they may be aligned radially or they may each be at an angle to a radius. The embellisher, with the exception of securing springs 5, may be produced integrally from a synthetic plastics material. <IMAGE>
Patent GB-2011884-A (GB)
Title: A Process for the Production of Benzoyl Cyanide
IPC: C07C253/14
Filed: 1978-11-30
Abstract: The invention provides a process for the production of benzoyl cyanide which comprises reacting benzoyl chloride with an alkali metal cyanide at a temperature of from 50 to 160 DEG C in the presence of a carboxylic acid nitrile and a copper (I) salt, the benzoyl chloride being introduced first into the reaction vessel and the alkali metal cyanide being added to it at the reaction temperature. Preferably the benzoyl chloride is introduced in the form of a mixture with the carboxylic acid nitrile and the copper (I) salt is added together with the alkali metal cyanide.
Patent GB-2016841-A (GB)
Title: Analog to digital conversion apparatus
IPC: H03J5/02
Filed: 1979-03-16
Abstract: For converting the setting of a potentiometer to a binary word, e.g. for controlling the frequency of a local oscillator signal generated in a phase locked loop of a radio receiver tuning system, conversion circuitry includes a voltage comparator (49) having a first input (-) coupled to the wiper (27) of the potentiometer (31) and a second input (+) coupled to a first capacitor (45) which is charged during a first predetermined period. The time at which the voltage developed across the first capacitor (45) exceeds the voltage at the wiper (27), and produces a change of the output level from the comparator (49), determines the binary word, e.g. according to the count then reached by a counter (35). To self-stabilize the conversion circuitry, a second capacitor (59) for developing the reference voltage for the potentiometer (31) is charged during a second predetermined period in accordance with the level of the voltage developed across the first capacitor (45) at the end of the first predetermined period. <IMAGE>
Patent GB-2047720-A (GB)
Title: Solvent sweeping of polycarbonates
IPC: C08L69/00
Filed: 1979-04-26
Abstract: Thermoplastic molding compositions are disclosed which comprise a polycarbonate molding powder in admixture with a minor amount of an entraining agent selected from monochlorobenzene, a polyhydric material and solutions of a polyhydric material in water. Such compositions have lower amounts of volatile matter, e.g. methylene chloride, carbon tetrachloride or benzene than comparable compositions without the entraining agent. A method of preparing a polycarbonate molding composition containing reduced amounts of volatile impurities is also disclosed.
Patent GB-2029286-A (GB)
Title: Machine for high accuracy machining and/or coordinate measurement of parts
IPC: G01B5/004
Filed: 1979-08-14
Abstract: A machine having a horizontally movable carriage 14 mounted to move along way surfaces carried on a machine base 12, of the type of the high accuracy machine-tools and coordinate measurement machines includes a low-friction protection system to keep the way surfaces free from debris and other foreign bodies; this system includes a curtain 300 fixed to the carriage 14 and extending over a support member 220 fixed to the base 12, the support member 220 being associated with means for receiving and directing a source of pressurized fluid between the curtain 300 and the support member 220 to produce a fluid cushion therebetween. <IMAGE>
Patent GB-2056611-A (GB)
Title: Vacuum cleaner hose assembly and method of making same
IPC: F16L37/084
Filed: 1979-08-16
Abstract: A vacuum cleaner hose assembly 30 and method of making same are provided wherein such assembly comprises, an elongate vacuum hose 31 having a hose end 37, a plurality of electrical conductors extending along the vacuum hose with each conductor having an end portion disposed immediately adjacent the hose end, a plurality of electrical connectors each fixed to an associated end portion of an associated conductor, a flexible hose fitting 36 fixed to the hose end with the fitting having a plurality of the electrical connectors embedded therein which are movable with flexing movements of the fitting, a rigid hose adapter 44 operatively connected to the fitting, an electrical device 45 carried by the adapter and connected to the embedded connectors with the device having precisely aligned integral electrical connectors 46, and cooperating portions on the adapter and electrical device self positioning the electrical device relative to the adapter with the precisely aligned electrical connectors readily accessible for easy mating with cooperating electrical connectors. <IMAGE>
Patent GB-2041052-A (GB)
Title: Improvements relating to sliding doors
IPC: E05D15/08
Filed: 1979-08-28
Abstract: A sliding door assembly, which is operable to swing a sliding door 11 into and out of the plane of a second sliding door 10 to enable the doors to be slid one past the other, comprises upper and lower horizontal guide channels 12a, 12b for door 10 and 13a, 13b for door 11 and guide members movable in the channels. Door 11 is supported at or adjacent its top and bottom edges by parallel links 27 connecting the door to rollers 33 and trolleys 22. The rollers and trolleys in each channel are connected together in spaced relationship by members 24, 32. The parallel links are arranged to swivel about vertical axes of shafts 25,30 and 25,23. A handle is connected to a vertical shaft 25 for swivelling the links 27 to actuate the swinging movement. <IMAGE>
Patent GB-2030872-A (GB)
Title: Ball serving aid
IPC: A63B59/20
Filed: 1979-08-28
Abstract: A ball serving aid comprises a first portion having an at least partly spherical outer form and a second portion which defines a nest for a ball to be thrown upwardly by rapidly raising the aid. <IMAGE>
Patent GB-2033915-A (GB)
Title: Organopolysiloxane/silica pharmaceutical compositions
IPC: C08K3/36
Filed: 1979-10-09
Abstract: An antacid chewable tablet containing an antacid, an organopolysiloxane, and silica in an amount of 1 to 70% of the weight of the siloxane/silica mixture has rapid defoaming action. The tablet is prepared by adding the organopolysiloxane and silica, premixed in powder form, to an antacid. Additionally, the premixed powder can be used as an antiflatulent alone or in combination with other medicinal agents.
Patent GB-2061851-A (GB)
Title: Prepulsion unit mounting
IPC: B63H5/125
Filed: 1979-10-29
Abstract: There is disclosed a propeller shaft and stern tube mounting arrangement for a water-borne vessel. A propeller shaft (4) and stern tube (3) pass through a flexible watertight sealing arrangement (8) in the hull (1) of the vessel. There is means (16, 17, 18, 19, 20) for raising and lowering the propeller shaft and stern tube, angular movement thereof being accommodated by movement of the sealing arrangement. The lifting means could be arranged for operating on either the propeller shaft or the stern tube for raising and lowering the propeller shaft and stern tube. The sealing arrangement provides a watertight seal between the hull and the stern tube. The stern tube is fixed at its inboard end to rigid means which provide for coupling to drive means for the propeller shaft, such as a gear box, the rigid means being mounted for pivoting movement on trunnion bearings in the hull, the axis of the bearings intersecting the sealing arrangement and the axis of the propeller shaft. The rigid means comprises a sub-frame providing a platform (9), the sub-frame, for coupling to drive means, carrying drive coupling means and a journal and thrust bearing (10). <IMAGE>
Patent GB-2064871-A (GB)
Title: A cavity wall mounting assembly for an electrical fitting
IPC: H02G3/12
Filed: 1979-12-06
Abstract: A cavity wall mounting assembly for an electrical fitting, such as a switch or socket, comprises a four-sided box closed at one end (15) only. The box has three or more and preferably four pillars (19) connected to the closed end (15) so as to project from the box away from the open end thereof for engagement with the inner leaf (22) of a cavity wall. The box has a through slot in each of two opposite sides and two clips (25) are also provided. Each clip (25) is L-shaped and has two mutually perpendicular limbs (26, 27) one (26) of which projects outwardly through a respective slot and the other of which extends within the box towards the closed end (15) where it is located in a channel or hole (30). The clips locate the box in the wall. <IMAGE>