baber/WOPTO huggingface dataset:
Patent GB-1444973-A (GB)
Title: Electrically-controlled copying apparatus for machine tools
IPC: G05D3/00
Filed: 1973-07-27
Abstract: 1444973 Automatic control K MAECKER 27 July 1973 [28 July 1972 17 May 1973] 35881/73 Heading G3N The movement of a tool slide in a machine tool, e.g. machining a crank-shaft, is made to synchronize with that of a template follower by a digital correspondence control system. As shown, tool slide 12 is driven by a D.C. motor 12À2 energized from a source 6À1 according to the output of a tachogenerator 6 associated with pattern follower 1 and the difference derived at 8À1 between the suitably scaled and counted outputs of digital encoders 6À3 and 12À3 associated with pattern follower and slide respectively. The pattern 2 is driven by the workpiece drive. A warning is given at 8À3 if a discrepency exists at 8À1 greater than a limit set at 8À2. In Fig. 2 (not shown) the tachogenerator is omitted and the speed signal is derived by a frequency to voltage converter from the output of encoder 6À3. In Fig. 3 (not shown) the slide is driven by an electro-hydraulic stepping motor driven by the pulses from encoder 6À3; the comparator 8À1 of Fig. 1 is used to insert additional pulses in the event of slip. Fig. 4 (not shown) is similar to Fig. 3 but the output of 8À1 drives an additional, electrical, stepping motor whose motion is added mechanically to that of the electrohydraulic one. Instead of driving the pattern directly it may be separately driven by a digital arrangement similar to that for the slide, using angular encoders on the respective shafts Fig. 5, (not shown). That on the workpiece shaft may be used also to supply an indicator to facilitate indexing of the shaft to a "start" position relative to the pattern, and that on the pattern may produce signals, e.g. at 20 degree intervals to cause speed changes in the rotation of the workpiece according to a programme stored in decade boxes or punched tape Fig. 6, (not shown). Fig. 7 (not shown) illustrates the parts which may be added to an existing machine.
Patent GB-1056987-A (GB)
Title: A method for coating a surface of a substrate with an insulating material by sputtering
Inventor: TOOMBS PETER ALAN BIRRELL
IPC: C23C14/00
Filed: 1965-08-20
Abstract: <PICT:1056987/C6-C7/1> A cathode sputtering method for coating a surface of a substrate with an electrically insulating material, the insulating material being capable of being reduced to a stable conducting compound, comprises cathode sputtering the reduced compound either in an oxidizing atmosphere or in an inert atmosphere followed by oxidation, to produce a coating which is chemically identical with the original unreduced insulating material.  The substrate may be silica and the insulating coating may be of barium lanthanum titanate.  The insulating material may be reduced at an elevated temperature in hydrogen or other reducing gas or gas mixture, and the gas used for oxidizing may be oxygen or a gaseous oxide of nitrogen or sulphur, alone or mixed with an inert gas.  As shown in Fig.1 the sputtering apparatus comprises a silica substrate 14 ink masked at 25, an earthed stainless steel anode 4, substrate heater 15 and a cathode 1 on a copper base block 2, the latter being mounted on a water cooled copper tube 3 with a cover 18 supported by a copper shield 20. The apparatus is contained in a glass dome 26 to which gas can be introduced at 10 or from which gas can be removed at 12.  A film capacitor is made by sputtering the following three layers in sequence on to an appropriately masked silica substrate, 1) platinum using an argon atmosphere at 5 x 10-2 Torr,  2) barium lanthanum titanate by sputtering the reduced compound in an atmosphere containing argon and oxygen in a ratio of 5:1 at 5 x 10-2 Torr, and  3) aluminium in vacuum.
Patent GB-1499709-A (GB)
Title: Synthesis gas generation
IPC: C10G9/32
Filed: 1976-08-31
Abstract: 1499709 Synthesis gas of reduced particle content TEXACO DEVELOPMENT CORP 31 Aug 1976 [1 Oct 1975] 35928/76 Heading C5E [Also in Division Bl] Synthesis gas of reduced particle content is produced by subjecting a carbonaceous or hydrocarbonaceous fuel 2 to partial oxidation, suitably with the introduction of an oxidizing agent I and steam 3, in reaction zone 5 of gas generator 4, passing the resulting gas stream through a constricted zone 6 to accelerate the rate of flow and increasing the velocity of the solid particles of soot and ash and diverting a stream of gas of reduced particle content through a line 8, from the particles of increased velocity. The diverted stream may be introduced into the tubes of a waste heat boiler 9, converting water introduced by line 10 into steam leaving through line 11, the stream leaving as a cooled gas through line 12. The remainder of the synthesis gas enters the quench chamber 7 where it passes through a dip leg 13 and is discharged into quench water 14 introduced through line 15 and quench ring 16. Gas substantially free from solid particles is withdrawn from the quench chamber through outlet 17. Water, containing soot and ash, is removed through quench blowdown 18.
Patent GB-772728-A (GB)
Title: Improvements in and relating to the control of gas valves
Inventor: CHARLES JOHN ARTHUR
IPC: G05G21/00
Filed: 1953-12-29
Abstract: 772,728. Clockwork actuated valves. UNITED GAS INDUSTRIES, Ltd. Dec. 29, 1954 [Dec. 29, 1953], No. 36071/53. Class 135. A gas valve time-controlled mechanism comprises a valve operating element 26 angularly adjustable from an initial to a second position in which it is a positively detained to open or close the valve 10 in a casing passage 4 and a rotary timing element 35 adjustable from zero through an angle proportional to the time interval required, a common biasing force tending to return both elements to their initial positions, and a clockwork timing mechanism set into operation by the timing element and which frees the valve operating element when it returns to its initial position after a predetermined time to thereby close or open the valve. The mechanism has a rotary knob moving over a dial on the rear face, as seen in Fig. 2, of the body 1, and its spindle 17 at the opposite face carries an arm 35. A valve operating lever 26 having one end at 27 operable at the dial face is connected to a box 20 rotatable on the spindle and housing a helical spring connected at one end of the spindle and at the other end to the box. The lever 26 has lugs 25 engaging a lever 14 connected to the hinged valve 10. On moving the end of the lever 26 down in the slot 27 a box tooth 34 engages a pawl 32 which thus holds the valve open. The knob, spindle 17 and arm 35 are then rotated anti-clockwise to wind the spring through an amount corresponding to the time required before the valve is actuated. The spindle then rotates in the opposite direction under the control of an escapement mechanism having a friction clutch engagement with the spindle 17. When the arm 35 returns to its initial position it engages a cam 37 which moves the pawl 32 so that the spring moves the lever 26 upwards and closes the valve. The cam 37 may be fixed or have limited movement on the pawl 32 as shown to allow element 26 to open the valve before or after setting the timing mechanism. In order that the mechanism may allow gas flow after a predetermined interval and stop it after a further interval, two of the mechanisms may control the gas in succession, the mechanism being separate or combined with one dial. A sound or like warning may be utilized with the mechanism.
Patent GB-1320705-A (GB)
Title: Ball-spindle drives
IPC: F16H25/22
Filed: 1970-07-24
Abstract: 1320705 Screw-and-nut mechanism CSEPELI SZERSZAMGEPGYAR 24 July 1970 [1 Aug 1969] 36137/70 Heading F2Q In a ball screw-and-nut mechanism comprising balls located between grooves in a shaft 1 and nuts 2, 2a which are slidably mounted in a bush 3, the nuts 2, 2a are pre-loaded axially by end rings 4 which have internal teeth engaging teeth on the nuts 2, 2a and are secured to the ends of the bush 3 by threaded bolts 7. A spring 5 is located between the nuts 2, 2a.
Patent GB-871118-A (GB)
Title: Improvements in and relating to roller skate wheels
Inventor: DAVIES WILLIAM LEWIS
IPC: A63C17/22
Filed: 1958-11-13
Abstract: 871,118. Roller skates. DAVIES STEEL SPECIALITIES Ltd. Nov. 3, 1959 (Nov. 13. 1958], No. 36505/58. Class 132(1). [Also in Group XXXIV] A roller skate wheel bearing unit has a flanged hub 11, a cupped outer race 15, and a housing 19 made of thermoplastic material which surrounds the outer race 15 and which has a double radial flange 21 at one end for abutting against the wheel 23 and against the flange 12 of the hub 11. The inner end of the housing, which may be castellated, is moulded over the outer race 15 under heat and pres- ,sure to secure the assembly together. A metal inner race member 13 may be interposed between balls 18 and the hub, which may be of nylon. The outer race -15 can be made of metal or of synthetic plastic material, and the housing may be formed from polyvinylchloride or polyethylene. The flange 12 of the hub 11 may be curved for engagement with the balls.
Patent GB-834113-A (GB)
Title: Improvements in and relating to apparatus for dissipating electrostatic charges
IPC: H05F3/04
Filed: 1957-11-22
Abstract: 834,113. Discharging static electricity. MESSEN-JASCHIN, G., [trading as MESSENJASCHIN, G. A.]. Nov. 22,1957 [Nov. 24,1956], No. 36544/57. Class 35. A device for discharging static electricity from poorly conductive surfaces by means of a glow discharge comprises an insulating bar 1 carrying at least one earthed discharge wire 4 and a high-tension discharge electrode 5 mounted in the bar and energized by a transistor 7 and H.T. transformer 6 removably mounted in the end of the bar. Screening wires 3 are stretched between mounting rings 2. The electrode 5 may be moulded in the bar. The oscillator 6, 7 is fed with rectified current through a low-tension cable 10 and produces a pulsating H.F. voltage.
Patent GB-857738-A (GB)
Title: Emulsion paints
Inventor: FAIR JOHN ALEXANDER
IPC: C09D133/06
Filed: 1958-11-13
Abstract: Emulsion paints based on aqueous emulsions of polyalkyl acrylates or methacrylates are rendered thixotropic by incorporating in the paint 0,05 to 6% by weight of the paint of a water-soluble alkali metal silicate of formula M2O.nSiO2 where M is an alkali metal and n is a number in the range 0,5 to 4,2.  The preferred resin is polyethyl acrylate.  The emulsions may also contain pigments, e.g. lithopone, titanium dioxide, calcium carbonate, china clay, talc, mica and blanc fixe; dispersing agents, e.g. sodium hexametaphosphate and sodium dioctyl sulphosuccinate; stabilizers, e.g. starches, gums, alginates, cellulose derivatives and salts of polyacrylic and polymethacrylic acids; corrosion inhibitors; additives to improve adhesion and flow, and tinting agents.
Patent GB-374452-A (GB)
Title: Improvements in or connected with means for securing railway rails in their supporting chairs
IPC: E01B9/58
Filed: 1930-12-05
Abstract: 374,452. Railway keys. MILLS, Ltd., J. [Executors of], Bredbury Steel Works, Bredbury, near Stockport, and MACBETH, A., Broadway, The Firs, Bowdon, Altrincham, Cheshire. 'Dec. 5, 1930, No. 36672. [Class 104 (ii).] A key of the kind made from -a spring steel plate bent into two loops 9, 10 is secured in position by driving in between it and the chair jaw 7 a packing - piece 12, which may be shaped to grip one end of the key and may have a central rib 16.
Patent GB-514036-A (GB)
Title: Improvements in methods for melting, converting and refining metals
IPC: C21C5/28
Filed: 1938-12-16
Abstract: 514,036. Refining metals. SOC. ANON. ESERCIZIO STABILIMENTI RIFOMETAL. Dec. 16, 1938, No. 36730. Convention date, Dec. 17, 1937. [Class 82 (i)] [Also in Group XII] Metals are extracted from alloys, e.g., copper from scrap brass, in a converter furnace having blowing nozzles 7 in the back portion 3 near the base, and a burner opening and an exhaust flue 11 near the neck, the metal together with flux and materials such as iron, silicon and manganese, which develop heat exothermically on oxidation being partly melted by the application of heat to the surface of the charge, after which the converter is tilted so that the nozzles 7 are just submerged and the melting is completed by blowing with air. Valuable constituents carried off in the exhaust gases are recovered by condensation. In the case of copper the refining is completed by returning the converter to the horizontal and blowing air on to the surface of the metal and by poling.
Patent GB-368810-A (GB)
Title: Improvements in and relating to apparatus for mixing gas and air, in particular for gas firing
IPC: F23D14/48
Filed: 1930-12-05
Abstract: 368,810. Gas valves and cocks. KLATTE, O., 3, Friesenweg, Altona, near Hamburg, Germany. Dec. 5, 1930, No. 36751. [Class 135.] In a valve device for mixing gas and air, particularly in burners, a regulating cock k is provided with two inlet passages d<1>, d<2> for compressed air, the passage d<1> being regulated by longitudinal adjustment of a hollow valve body f, and the passage d<2> by a needle valve g.
Patent GB-1055809-A (GB)
Title: Improvements in or relating to small arms
IPC: F16L15/00
Filed: 1964-09-08
Abstract: 1,055,809. Fixing barrels in small arms. RHEINMETALL G.m.b.H. Sept. 8, 1964 [Sept. 10, 1963], No. 36761/64. Heading F3C. A barrel which is externally plain and made oversize is screwed into an internally threaded and hardened locking piece. Preferably the end of the barrel and/or the locking piece are subjected to prior phosphate coating.
Patent GB-1314276-A (GB)
Title: Calibrated nozzles
IPC: D01H5/38
Filed: 1970-07-30
Abstract: 1314276 Pneumatic gauges ZELLWEGER Ltd 30 July 1970 [25 Nov 1969] 36828/70 Addition to 1137297 Heading G1M In a modification of the method of Specification No 1137297, the cross-section of a textile material 2 is measured by passing it through a nozzle 1 which decreases in cross-section and measuring the pressure generated in the nozzle, pressure surges being introduced into the measuring line 8 connecting the nozzle with a manometer to clear deposits out of channel 6. A valve 11 may be provided to admit the pressure surges and a valve 13 to isolate the manometer 9 from the surges. The pressure surges may be provided by a piston-cylinder arrangement, Fig. 4 (not shown).
Patent GB-327195-A (GB)
Title: Improvements relating to paper containers for liquids
IPC: B65D3/06
Filed: 1929-09-13
Abstract: 327,195. Riley, S., Mercer, J. E., and Jones, S. H. Sept. 13, 1929. Capsules and like closures. -The upper end of a conical paper liquid container is turned over inwardly, the double thickness of material being contracted to form an external groove C and an internal ledge D adapted to support either a disc closure or an externally fitting cap the lower edge of which can be cramped or pressed into the groove C. The cap may be of paper or metal or may comprise a paper top with a depending flange of metal.
Patent GB-324769-A (GB)
Title: Improvements in or relating to hollow pottery, earthenware and like articles of a refractory nature
IPC: B28B1/02
Filed: 1928-12-14
Abstract: 324,769. May, A. C. Dec. 14, 1928. Centrifugal machines; moulding pipes and tubes and hollow-ware. - Hollow pottery, earthenware, and other refractory articles, e.g., graphite and clay crucibles, pipes, tubes, chemical containers, &c., are formed by feeding the material, in dry powder form, through a nozzle into a rotary mould and incorporating fluid therewith during its passage to or as it leaves the nozzle. As shown, a mould 11, closed at the bottom, is bolted at 22 to a rotary member 12 and is charged with material fed through a nozzle 20 adjustably supported by an arm 17 on a column 19 which is rotated to align the nozzle axially with the mould. The mould is lined with canvas 13 secured by a ring 14 and plate 15 which are held against rotation by dowels 14<a>, 15a. Apertures 39 permit of escape of air. A dry mixture of finely-ground argillaceous material is fed to the nozzle 20 and is sprayed into the mould by liquid or steam fed through a pipe 30 to a spraying nozzle 29 adjustably positioned within the nozzle 20. After the requisite quantity of material has been introduced, the column is turned to remove the nozzle and to bring into position a plunger 21 which is lowered to compress the material. The speed of the mould is reduced or arrested while the plunger operates, relative rotation of the mould and plunger being prevented by a ball or roller thrust bearing 36 interposed between the plunger and its support 26. To form tubular articles, the parabolic article formed in the rotary mould is transferred, while plastic, to a tubular mould and shaped by a plunger or forming tool.
Patent GB-1497989-A (GB)
Title: Separation of diastereoisomeric 2-hydroxyethylcyclopenteneol biscarbamates
IPC: C07C239/00
Filed: 1976-09-09
Abstract: 1497989 Resolution of cyclopentene derivatives UNIVERSITY OF CHICAGO 9 Sept 1976 [29 Oct 1975] 37329/76 Heading C2C The invention comprises a process for separating a diastereoisomeric mixture of compounds of Formula I wherein X is alkyl and Y is aryl into its individual diastereoisomers by subjecting the mixture to recrystallization, from an aromatic hydrocarbon to obtain one diastereoisomer and then subjecting the remaining material to crystallization from a ketone to obtain the second diastereoisomer. (Œ) - cis - 2 - (2<SP>1</SP> - Hydroxyethyl) - cyclopent- 3-en-1-ol is prepared by reaction of (Œ)-cis-2- (carboxymethylene) - cyclopent - 3 - en - 1 - ol lactone with lithium aluminium hydride. (+)- and (-) - cis - 2 - (2<SP>1</SP>- Hydroxyethyl)- cyclopent-3-enol are prepared by reacting of the appropriate bis carbamates with LiAlH 4 . (+) - all cis - 2 - (2<SP>1</SP> - Hydroxyethyl) - 3,4- oxidocyclopentanol is prepared by reacting (+)- or (-) cis - 2 - (2<SP>1</SP> - hydroxyethyl) - cyclopent- 3-en-1-ol with m-chloroperbenzoic acid.
Patent GB-914411-A (GB)
Title: Manufacture of shrinkable films of polyolefins or copolymers thereof
IPC: B29C55/00
Filed: 1959-11-04
Abstract: A film of an olefin polymer or copolymer possessing in the molecule an average of more than 10 chain branches per 1,000 carbon atoms is biaxially extended to at least fifteen times the initial area at a temperature below the crystallite melting point of the polymer or copolymer, to produce a shrinkable film. Preferably, the crystallite melting points of the polymers used are lower than 130 DEG C. Specified polymers include high pressure polyethylene, polybutene-1, and the following copolymers where the first-named material is present in the major proportion:- ethylene-propylene, ethylene-butene-1, and butene-1/propylene.  Especially preferred are copolymers of 85-95% ethylene with 5-15% propylene, of 90-98% ethylene with 2-10% butene-1, of 60-80% butene-1 with 20-40% propylene, and 95-98% butene-1 with 2-5% pentene-1, which yield films which, in a water bath at 100 DEG C., shrink from 25-40%.  A flat film may be stretched transversely by clamps and longitudinally by rollers, or tubular film may be stretched mechanically in both directions, or by inflation.  Films may be made consisting of two or more layers of different polymers (see Group VIII).
Patent GB-871341-A (GB)
Title: Method of manufacturing diaphragms, notably for liquid hydrocarbon pumps
IPC: C08K3/04
Filed: 1957-12-02
Abstract: Elastic diaphragms for displacement pumps for the injection of liquid hydrocarbon fuel in internal combustion engines are made by heating an intimate mixture of an acrylonitrile-butadiene copolymer and carbon black of particle size less than 600 . to a temperature of 150 DEG -180 DEG C. for 10-60 minutes, thereafter incorporating in said mixture a vulcanizer and (unless already present in the mixture) an accelerator and subsequently shaping and curing.  Zinc oxide or stearic acid may be present in the original mixture.  In the example, an acrylonitrile-butadiene copolymer is mixed with the reaction product of an unsaturated oil with sulphur or sulphur monochloride, carbon black, zinc oxide and stearic acid and heated at 160 DEG C. for 30 minutes, the product being mixed with mercaptobenzothiazol and sulphur, shaped into discs and cured,
Patent GB-1030006-A (GB)
Title: Improved expansion vessel for closed hydraulic systems
IPC: F15B21/045
Filed: 1963-09-24
Abstract: 1,030,006. Hydraulic apparatus. BOYE U. R. and CLAESSON A. G. B. Sept. 24, 1963, No. 37561/63. Heading F1P. The hydraulic fluid space 15 of an expansion vessel 1 having inlet and outlet ducts 2, 3 by which the vessel is included in a closed hydraulic circuit is bounded by the bottom and sides of the vessel and by a resilient flexible diaphragm 14 open to ambient air pressure. The vessel has a filler plug 6 a drain plug 10 and a relief valve 7.
Patent GB-933163-A (GB)
Title: Improvements in or relating to implements for working crop lying on the ground
IPC: A01D78/00
Filed: 1959-11-05
Abstract: 933,163. Haymaking machines. PATENT CONCERN N.V. Nov. 5, 1959 [Nov. 19, 1958], No. 37616/59. Class 6(3). In a rake-wheel haymaking machine having the rake wheels arranged in at least two groups 2, 3, each group is connected to a common frame-member 1 so that the groups are held in spaced relation, at least one group, 2, being connected to the frame through an adjustable support, 14, so as to be angularly adjustable relatively to the support about a first axis 36 parallel to the rotational axes of the rakewheels of the group and midway between those of the extreme rake-wheels, the support being itself angularly adjustable about a second horizontal axis 35 relatively to the framemember 1, the second axis being parallel to, but spaced, from the first, whereby the distance between the rake-wheel groups can be varied by adjusting the support about the first axis relatively to the frame-member and preserving the relative positions of the rakewheels in the group by corresponding adjustment of the group relatively to the support about the first axis. The support 14 comprises a sleeve which is freely rotatable on the end 15 of the frame-member 1 and can be locked to a flange 17 thereon by a spring-loaded pin 16. The sleeve 14 is integrally connected to a second sleeve 11 which receives a pivot-pin 11 on the J-shaped beam 6 carrying the rakewheels 4, 5, the sleeve 11 being lockable to the beam by a spring-loaded pin 12 engaging holes in a bracket 13. The frame-member 1 is universally jointed to a beam 23 about a pair of mutually-perpendicular pivots 25, 29 locking means 26, 34 being provided on each adjustment. The beam 23 is freely pivoted about an axis 23B to an inverted T-shaped member mounted on tractor hitch-links (not shown), the beam being suspended by a spring and being supported on the ground by retractable sprag, Fig. 5 (not shown). The locking means 34 includes a bracket 30 having an arcuate slot joining up a row of square holes 31 which can be selectively engaged by the square head of a longitudinally-retractable bolt. The rakewheel group 3 is rotatable about a pivot-pin 18 in a sleeve 19 integral with the framemember 1 so that the groups may be arranged as in Fig. I, for swath-turning or in Fig. 2 for side-delivery. If desired, both groups may have the double-sleeve adjustment, and in a modification, Fig. 9 (not shown), for three groups, the two outer groups both have this adjustment. Specifications 933,164 and 933,165 are referred to.