baber/WOPTO huggingface dataset:
Patent GB-1078860-A (GB)
Title: Improvements in or relating to information retrieval apparatus
IPC: G06K17/00
Filed: 1964-12-23
Abstract: 1,078,860. Information retrieval apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 23, 1964 [Dec. 24, 1963], No. 52351/64. Heading G4M. The apparatus determines the presence or absence in a record of a set of n terms, each comprising a plurality of elements A-N, containing, in one-for-one correspondence, a particular set of n partial terms. A punched card or magnetic tape reader provides outputs on terminals A-N corresponding to the elements comprising each record term. These terminals are wired to matching registers (AND gates) 3, 4, 5 according to the partial terms sought, e.g. ACD, CF, ADF. A record term such as CFK contains partial term CF and causes relay 7 to latch up. The contacts of relay 7 transfer the outputs of registers 3, 5 to relays 9, 11, but register 4 remains connected to relay 7 so that any subsequent record terms which satisfy partial term CF are ignored unless they also satisfy one or more of the other partial terms ACD, ADF. For example, if a record term ACDF is detected, there are outputs from all of registers 3-5, but only relays 9, 11 are latched up by this term. In this case, the term ACDF is recognized as satisfying either of partial terms ACD, ADF, but since it cannot be identified with any particular one of these partial, terms at this stage, the contacts of relays 9, 11 are arranged to connect register 3, 5 directly to output terminal 12 so that the subsequent detection of a record term which satisfies either or both of partial terms ACD, ADF produces an output signifying that the record contains three terms which respectively include the partial terms ACD, CF, ADF. The apparatus can also seek a set of n terms to satisfy a set of n partial terms, two or more of which are the same. For example, if registers 3, 4 are both wired to detect partial term CF, a term containing CF will cause relays 6, 7 to be latched up, the outputs of registers 3-5 then being connected to relays 9-11. Detection of another term containing CF will latch up relays 9, 10 and register 5 will be connected to terminal 12. If ADF is detected first, the first following term containing CF will latch up relays 9, 10 to connect the outputs of both registers 3, 4 to terminal 12, so that a second term containing CF will produce an output from the apparatus. For a set of n partial terms, n matching registers such as 3-5, and (n-1) storage registers 6-8, 9-11 are required since the final partial term to be identified produces an output at terminal 12 directly.
Patent GB-1393579-A (GB)
Title: Method of producing high density silicon nitride
IPC: C04B35/593
Filed: 1972-11-14
Abstract: 1393579 Hot pressed silicon nitride NATIONAL RESEARCH DEVELOPMENT CORP 9 Nov 1973 [14 Nov 1972] 52445/72 Heading C7D Si 3 N 4  bodies are produced by compacting Si powder to a required shape, reaction sintering in N 2  to form a Si 3 N 4  body which is then hot pressed. The reaction sintered body is preferably infiltrated with a flux such as the oxide or nitride of Mg, Be or Ca or Al 2 O 3  or Fe 2 O 3  prior to hot pressing at 1600-1850‹C at 1¢ t.s.i. in graphite dies coated with BN. The Si powder may be mixed with 1-50% vol. of SiO 2 , SiC, graphite, BN, Al, Ti or Fe powder or fibres prior to compaction. The hot pressed Si 3 N 4  may then be annealed.
Patent GB-1537064-A (GB)
Title: Method for manufacturing seamless legged garments and product obtained thereby
IPC: D04B9/46
Filed: 1975-12-23
Abstract: 1537064 Knitting; knitting-machines SAINT JULIAN ETAB 23 Dec 1975 [1 May 1975 12 June 1975] 52555/75 Headings D1C and D1K Seamless legged garments are knitted on a circular hosiery machine in the following successive steps: a) a first leg 2 is knitted from the toe on all needles; b) crotch needles are excluded while their loops are retained on the needles, sinkers or hooks; c) a first open tubular body portion 4 with elastic waistband section is knitted on the remaining needles and pressed off, needles being progressively excluded without dropping of stitches during knitting; d) a second like portion 4' is knitted, joined at its side edges to the portion 4 by virtue of the progressively excluded needles; e) the crotch needles are reactivated to close the crotch; f) the second leg 2' is knitted on all needles. Stitches may be increased and decreased at the respective side edges of portion 4 so that the junction lines between portions 4 and 4' in the finished garment are inclined. In this case loops of portion 4 on the "increasing" side are transferred to the lowest plane (L) of multi-plane sinkers (Fig. 4, not shown).
Patent GB-1055360-A (GB)
Title: Recording speedometer
IPC: G01P3/495
Filed: 1964-12-29
Abstract: 1,055,360. Recording speed. FABRIQUES DES MONTRES ZENITH S.A. Dec. 29, 1964 [Jan. 22, 1964], No.52614/64. Headings G1J and G1K. On a vehicle provided with a differential having associated ratio change mechanism, a recording speedometer 1 is driven from a gear box V 1 , Fig. 4 (not shown) in which the gear ratio is changed with ratio changes in the differential, during which a recording pen 23, Fig. 1 (not shown) is locked in a position corresponding to the speed of the vehicle. When a switch T, Fig.4, is actuated to energize relays controlling the differential and gear box V 1 , a condenser C is charged and an electromagnet 26 is energized to press a brake shoe 16 Fig. 2 of rubber or plastic against the skirt of a copper bell 11, turned against a return spring 20 by rotation of a magnet 10 driven from the gear box V 1 . The gear change in box V 1  takes 10 to 15 milliseconds and the declutching and acceleration associated with the ratio change of differential takes 1 or 2 seconds, but the condenser C discharging through the brake relay 26 can be arranged to keep the brake on to cover this period. Temperature compensation is provided by a shunt 17, Fig. 1, comprising a ring of magnetizable material whose reluctance varies inversely with temperature.
Patent GB-1126725-A (GB)
Title: Hydraulic jack and piston valve member therefor
IPC: F15B15/22
Filed: 1966-11-24
Abstract: 1,126,725. Hydraulic jacks. CATERPILLAR. TRACTOR CO. 24 Nov., 1966 [27 Dec., 1965], No. 52649/66. Heading B8J. [Also in Division F1] In an hydraulic jack comprising a piston 23 and a cylinder 16, the piston contains a plurality of valve-members 27, 28 having stems slidingly lodged in sleeves 31, which include passages 35, to permit flow of working fluid from the highpressure side of the piston into exhaust conduits 36, 37 when the piston approaches the end of each stroke, the stems on at least one of the valve-members e.g. the stems 29, being longer than the stems on the other valve-member, or members, to effect earlier opening of the corresponding valve-member, or members, so that shock sustained by the piston is minimal. The sleeves 31 are retained in the piston by washers 33, 34 on a rod 20 attached to the piston, which rod is coupled to a pivotallysupported blade (11), Fig. 1 (not shown) in an earth-working machine (10).
Patent GB-1407058-A (GB)
Title: Helical rotor mechanisms
IPC: E21B4/02
Filed: 1972-11-15
Abstract: 1407058 Rotary positive-displacement machines VSESOJUZNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNOISSLEDOVATELSKY INSTITUT BUROVOI TEKHNIKI 15 Nov 1972 [29 Nov 1971] 52654/72 Heading F1F An internally-meshing helical screw mechanism comprises a multi-threaded stator 2 surrounding an eccentrically positioned rotor 4 which moves in a planetary manner within stator 2, the stator having its grooves formed by circles of radius r with its intermediate teeth formed by cycloidal surfaces generated by a circle of radius h rolling without slip on the stator pitch circle, the rotor having a profile corresponding to the locus of a point on the rotor pitch circle when it is rolled without slip on the stator pitch circle, and the ratio of the eccentricity e to the radius r being in the range 0.3 to 0.85, preferably 0.55. The ratio of e to h is preferably 0.90-0.98, the particular embodiment having this ratio at a value of 0.95.
Patent GB-1412381-A (GB)
Title: Butt-joining of layers of plastically deformable material
IPC: B29C65/02
Filed: 1973-11-16
Abstract: 1412381 Seaming non-metallic sheet material SEMPERIT AG 16 Nov 1973 [20 Nov 1972] 53176/73 Heading B5K Two layers of plastically deformable material are butt joined by forming chamfered edge faces 17, 18 on the layers 4, 5, which faces are mutually parallel when the layers 4, 5 are in parallel alignment, positioning the layers 4, 5 so that the chamfered faces 17, 18 are in parallel abutting relationship but vertically offset from one another, and thereafter applying a force to the layers 4, 5 so as to force the faces 17, 18 to slide one along the other so that the layers 4, 5 are joined together by the adhesiveness of the material. In the embodiment described, the layers 4, 5 are cut from a web of rubberized material 36 having longitudinal parallel steel cords 34 and the cut layers are rotated through 90 degrees so that the cords will lie perpendicular to the longitudinal direction of the joined product, e.g. an endless band. The faces 17, 18 to be joined are cut parallel to each other and parallel to the edge cords 35 at a chamfer angle, preferably of about 60 degrees. Either, at one of the faces 17, 18, the edge cord is partially exposed or is only barely covered by the rubber 36, Fig. 3, or both edge cords are partially exposed, Fig. 4 (not shown). The layers 4, 5 are transferred to a device which positions them on plates 2, 3, Fig. 2, with the faces 17, 18 being so positioned that they are vertically staggered relative to one another by somewhat less than the thickness of one ply. Gripper elements 23, 24, e.g. sprung pins, engage the layers 4, 5 and their supports 21, 22 are moved in frames 19, 20 by rams 28 to force the faces 17, 18 into contact with stop strips 10 on pivotable stops 9. Suction is applied to plates 6, 7 through orifices 8 to hold the layers 4, 5 and the elements 23, 24 are removed. The stops 9 are pivoted downwardly towards a fixed lower press bar 11 by rams 25 and the plates 6, 7 are moved towards each other by rams 26 so that the layers 4, 5 assume the position of Fig. 3. The plate 7 is lowered by a ram 27 to the height of the plate 6 and an upper press bar 12 is moved downwards obliquely by a ram 15 to join the layers by mutual sliding action between the edges thereof, the bar 11 acting as a support. Suction is removed and the individual elements are returned to their initial positions. As shown in Fig. 3, the angle of inclination α of the bar 12 is about 70 degrees. In a modification, Fig. 5 (not shown), instead of having a flat working surface, the upper press bar has a slightly convex surface.
Patent GB-1072537-A (GB)
Title: Improvements relating to gear change mechanisms
IPC: F16H59/04
Filed: 1965-12-16
Abstract: 1,072,537. Change-speed gears. DAIMLERBENZ A.G. Dec. 16, 1965 [Dec. 17, 1964], No. 53450/65. Heading F2D. A steering column gear shift mechanism is provided with means preventing unintentional engagement of reverse. As shown a tubular shift bar 10 is axially slidable to select a ratio and rotated to establish it by a manual gear lever 13 having a slot 17 slidably engaging a bolt 16 of a casing 12 fast with the bar 10. The gear lever 13 has a flattened ball 20 slidably engaged in a bore of a guide pin 18 which is axially fixed but rotatably mounted in a stationary housing 29. The lever 13 is pivoted in the plane of the drawing to select a ratio, for the forward ratios an enlarged head 22 of a locking pin 21 slides in an axial slot 23 (Fig. 3, not shown) of the shift bar 10, the lever being prevented from moving to its reverse position by a slot (24) which is too narrow for the head 22. Reverse is obtainable on moving the lever 13 longitudinally against the pressure of a spring 26 to bring the shank of the pin 21 into register with the slot (24). The slots 23, (24) may also be provided on a part 27 of the casing 12, the lever 13 being shaped appropriately.
Patent GB-1135228-A (GB)
Title: Method and apparatus for regulating oil pressure in seals
Inventor: KUFMAN JAKOV ITSKOVICH
IPC: H02K5/124
Filed: 1965-12-17
Abstract: 1,135,228. Lubricating; valves. TSENTRALNOE KONSTRUKTORSKOE BURO GLAVENERGOSTROIMEKHANIZ AT SIJA 17 Dec., 1965, No. 53596/65. Headings F2A and F2V. A method of controlling oil pressure in the rotor end seals of a hydrogen-cooled generator by decreasing or augmenting the flow of oil (or other fluid) to the seals when the oil pressure in the seals is increased or decreased respectively. In Fig. 2 a pressure regulator comprises a vertical three piston valve sliding in an apertured bush 8 and oil passes continuously from inlet pipe 23, through apertures 11 in the bush, passages 18 in the central piston 15, apertures 10 in the bush, chamber 24 and pipe 25. Passage of oil through passages 18 rotates the valve to prevent it sticking in bush 8. The lower surface of lower piston 16 is acted on by outlet oil of the regulator and the upper surface of upper piston 14 by hydrogen from the generator stator and by a weight 17. Thus increase of oil pressure in the seals moves valve 13 upward, piston 16 covering apertures 12 and piston 14 uncovering apertures 9 so that some of the oil from passages 18 drains through apertures 9 and pipe 26. Decrease in oil pressure moves valve 13 downwards so that apertures 9 are covered and apertures 12 opened allowing flow from pipe 23 through bush 8 to chamber 24 and pipe 25.
Patent GB-1253813-A (GB)
Title: Improvements in or relating to safe load indicating devices
IPC: B66C23/90
Filed: 1967-11-24
Abstract: 1,253,813. Safe load indicators for jib-cranes. ROBERT McALPINE & SONS Ltd., and K. McALPINE. 22 Nov., 1968 [24 Nov., 1967], No. 53609/67. Heading B8B. A safe load indicator with an alarm device for a jib-crane comprises a product box 19 with five cams 27, each with a pair of surfaces respectively associated with a switch 45 and each cam 27 corresponding to a different configuration of the crane, the associated pair of switches 45 being selected by means of a switch 51. The switches 45 are moved with respect to the cams 27 in accordance with the load on the jib 12 through an hydraulic sensing device 16 arranged to sense the tension in suspension ropes 14, the jib 12 being pivoted at 13. The pressure from the device 16 is led through pipe 18 to the product box and thus to a plunger (not shown) connected to the switches 45. The cams 27 are mounted on an axle 26 which is rotated in accordance with the movement of the jib 12 through a cable 17 which gives a measure of the horizontal displacement of the load from the standing to which the crane is attached. Each surface on each cam 27 has a cam follower 37 loaded by a spring 46. The switch 45 is operated when a ball 44 is lifted by a ramp 42 on the end of the cam follower 37 remote from the cam 27. One of each pair of associated cam surfaces gives a warning when the predetermined safe limit is approached, the other when it has been reached, an electric cable 21 leading from the product box 19 to warning lights 22 for this purpose. The alarm may operate in conjunction with the warning lights which may include an indication of safe loading conditions. Limit switches operate the alarm if the hydraulic fluid leaks out or if the cable breaks (not shown).
Patent GB-1489074-A (GB)
Title: Preparation of glycol acetates
IPC: C07C69/16
Filed: 1974-12-12
Abstract: 1489074 Glycol acetates HALCON INTERNATIONAL Inc 12 Dec 1974 [12 Dec 1973] 53836/74 Heading C2C Vicinal glycol acetates are prepared by reacting acetic acid, ethylene and molecular oxygen in the presence of a catalyst system comprising (1) at least one variant valency cation from Te, Ce, Sb, Mn, V, Ga, As, Co, Cu, Cr and Se cations and (2) at least one of bromine, chlorine, a bromine-containing compound and a chlorine containing compound, and in which the oxidation zone is supplied with a liquid feed of acetic acid and a level of formic moieties, calculated as formic acid, of 3 to 10 weight per cent is maintained in the liquid feed. The liquid feed may have formic moieties in the range 4 to 8% and the liquid feed may include catalyst and recycled higher boiling components. The reaction may be continuous and the reaction mixture recovered from the oxidation zone may be distilled once or in a plurality of steps to separate a product of vicinal acetates on aqueous stream, an acetic acid and lowerboiling non-aqueous component stream, and a higher-boiling and non-volatile component stream. An example describes the process using tellurium dioxide, hydrogen biomide and controlled quantities of formic acid, with the aid of a flow diagram of suitable apparatus.
Patent GB-1196017-A (GB)
Title: Black Oil Conversion Process.
Inventor: HAMBLIN ROBERT JEREMY JOHN
IPC: C10G65/10
Filed: 1967-11-28
Abstract: 1,196,017. Hydrocracking. UNIVERSAL OIL PRODUCTS CO. 28 Nov., 1967 [30 Nov., 1966]. No. 54023/67. Heading C5E. A process for the conversion of a hydrocarbon charge stock, of which at least 10% by volume boils above 1050 F., and which contains at least 1À0% by weight sulphur, to a product of which a substantial portion boils below 700 F., and which contains less than 1À0% by weight sulphur, comprises (a) separating said charge stock in a first separation zone to provide a light fraction having an end boiling point within a range of from 650 F. to 850 F., and a heavy fraction having an initial boiling point above 650 F.; (b) admixing said heavy fraction with hydrogen, and heating the resulting mixture to a temperature above 700 F.; (c) contacting the resulting heating mixture with a catalytic composite in a first conversion zone maintained at a pressure greater than 68 atmospheres gauge; (d) separating the resulting conversion zone effluent, in a second separation zone at substantially the same pressure as that of the first conversion zone, and at a temperature above 700 F., to provide a first vapour stream and a first liquid stream; (e) further separating at least a portion of said first liquid stream, in a third separation zone at a pressure in a range of from sub-atmospheric to 6À8 atmospheres gauge, and at a temperature within a range of 550 F. to 900 F. to provide a residuum fraction and a second vapour stream; (f) combining said second vapour stream, said first vapour stream, and said light fraction, and contacting the resulting mixture with a catalytic composite in a second conversion zone at conditions selected to convert sulphurous compounds into hydrogen sulphide and hydrocarbons; and (g) separating the second conversion zone effluent, in a fourth separation zone at a temperature within the range of from 60 F. to 130 F. to provide a hydrogen-rich third vapour stream, and a normally liquid hydrocarbon product. The starting material may be a tar sands crude, a topped or reduced crude, an atmospheric bottoms fraction or a vacuum residuum. The catalyst in both zones may comprise molybdenum, tungsten, chromium. iron, cobalt, nickel, platinum, palladium, osmium, iridium, ruthenium or rhodium or mixtures on alumina, silica, boria, magnesia, zirconia, titania, strontia, or hafnia or mixtures (including silica-alumina boron phosphate).
Patent GB-1429208-A (GB)
Title: Hatch for mounting in a wall mechanism for feeding and locating magnetic cores in a device for interweaving memory matrices with a coiled wire
IPC: A61G7/10
Filed: 1973-11-21
Abstract: 1429208 A hatch for passing bodies through a wall SIEMENS AG 21 Nov 1973 [4 Dec 1972] 54123/73 Heading E1J A hatch in a double wall 4 comprises a wall element 7 mounted in the cavity 6 of the lower wall and vertically displaceable by the motor 17 and spindle 18, a table-like plate 22 with down-turned edges 23, 24 mounted at the top of element 7 by means of a stay 34 and spring 35 which allow the plate to be adjusted to trolleys 31, 32 of varying heights at the two sides, and a wall element 8, with a window 26, vertically displaceable by traction ropes 19 and cable drums 20, 21. Sealing lips 9-16 and 36 37 make the hatch fluid-tight when shut. A patient may be passed between a sterile room 1 e.g. an operating theatre and a non-sterile room 2 with a minimum of contamination of the sterile area.
Patent GB-1243371-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: NICHOLS RONALD WILLIAM
IPC: G21D5/08
Filed: 1967-11-30
Abstract: 1,243,371. Cooling reactors. ATOMIC POWER CONSTRUCTIONS Ltd. 2 Dec., 1968 [30 Nov., 1967], No. 54668/67. Heading G6C. In an integral, gas cooled, graphite moderated nuclear reactor, secondary heat. exchangers are used to facilitate reactor cooling during shut down. The core 3 and heat exchangers 5, 9 are enclosed in the concrete pressure vessel 1. The exchangers, mounted between the pressure bell 4 and the steel lining 2 are coupled to the gas circulators 6. During shut-down, water flow is established in the secondary heat exchangers 9 and steam flows through reservoir 19 into condenser 18. The valves 11 and 14 are closed, thus interrupting the steam flow to the turbines 16, 17 from the exchanger 5.
Patent GB-1384439-A (GB)
Title: Cationic conditioning agents for potash flotation
IPC: B03D1/02
Filed: 1972-11-27
Abstract: 1384439 Froth flotation CALGON CORP 27 Nov 1972 [3 Dec 1971] 54797/72 Heading B2H A potash froth flotation process comprises grinding a potash ore, mixing the ground ore with an aqueous solution of a salt, e.g. saturated brine solution, to form a pulp, adding to the pulp a collecting agent, a frothing agent and a slime depressant consisting of a watersoluble diallyl dialkyl quaternary ammonium polymer having a molecular weight of at least 1,000, aerating the pulp to form a froth, collecting the froth and recovering potash values, e.g. sylvite, therefrom. The polymer concentration may be between 0.001 and 1.0 pound per ton of dry ore. In a multi-step process the polymer may be added at the conditioning stages prior to any of the flotation steps. The polymer may be one of dimethyl diallyl ammonium chloride. An amine may be used as collector and methoxy propylene glycol and methyl isobutyl carbinol as frothing agents. A flow diagram of a three-step flotation process and results of camparative tests are given.
Patent GB-1378159-A (GB)
Title: Mixing valve and in combination a thermostat for use with same
Inventor: LANGE H
IPC: G05D23/13
Filed: 1971-11-29
Abstract: 1378159 Valves H LANGE 29 Nov 1971 [2 Dec 1970] 55400/71 Heading F2V A mixing valve for setting the mixture ratio of hot and cold water and the total flow rate through two inlet valves 4 comprises a pressure plate 10 acting on both valves which is guided in two bearings in the form of a slip coupling attached to a temperature regulating port 12 such that the plate is capable of being tilted on an axis by the spindle 15 to regenerate the total flow rate and the axis of tilt is determined by the rotation of the bearings relative to the plate to determine the mixture. The bearings are formed by two arms of a guide spring 11. Instead of a  flow control knob 5 and a temperature ring 6 as shown in Fig. 1, a lever with an attached eccentric plate may be provided to effect both controls (Fig. 9). The pressure plate may be attached to an elastic corrugated tube enclosing the guide spring. The spindle motion may be damped by providing an enclosed fluid chamber in the temperature regulating part 12. A thermostat in the form of a bimetal strip, gas filled spring bellows or Bourdon spring can be provided at 20, arranged by way of a linkage between the temperature regulating part and the guide spring. A screw-threaded shut-off valve 19 is provided to facilitate repairs.